A real-world situation that might involve three linear equations in three variables is trying to determine the ages of three siblings.
Let's call them A, B, and C. We know that the sum of all three ages is a certain value, let's say it's 60. We also know the sum of the first two ages is either twice the third age or the third age squared. For example, if the sum of the first two ages is twice the third age, we could write it as A + B = 2C.
Alternatively, if the sum of the first two ages is the third age squared, we could write it as A + B = C^2. Similarly, we know the sum of the first and third ages is either twice the second age or the square root of the second age. So, we could write it as A + C = 2B or A + C = sqrt(B).
We now have three linear equations in three variables that we can use to solve for the ages of the three siblings. By solving the system of equations, we can find out how old each sibling is.
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Need help ASAP!!!
Find X,Y, and Z. Show work.
Answer:
x=81
y=33
z=9
SEE THE IMAGE FOR SOLUTION
find the area between a large loop and the enclosed small loop of the curve r = 2 4 cos(3).
The area between the large loop and the enclosed small loop of the curve r=24cos(3) is approximately 8.75 square units.
To find the area between the large loop and the enclosed small loop, we need to first determine the values of θ where the loops occur. The polar equation r=24cos(3) has two loops, with the smaller loop enclosed within the larger one. The smaller loop occurs when cos(3)=0, which happens when theta is a multiple of π/6. The larger loop occurs when r=0, which happens when cos(3)=-1/2 or when theta is a multiple of π/3. To calculate the area between the loops, we can integrate the area of the sector between two adjacent θ values and subtract the area of the smaller loop from the larger loop. This gives us an approximation of 8.75 square units for the area between the loops. The actual value can be obtained by using calculus to calculate the definite integral of the difference in the areas of the two loops.
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Sport
Hrs Calculate the
portion for walking
Soccer
5
in degrees.
Jogging 20
Walking
[2]°
10
Skiing
Football
Total
50
10 hrs.
Total Sport Hours
Answer:
72 degree
Step-by-step explanation:
It is given that :
Sports Hours
Soccer 5
Jogging 20
Walking 10
Skiing 5
Football 10
50 hours
The total hour is given as 50 hours. Out of which walking is 10 hours.
Therefore, in degree the portion of walking will be :
\($=\frac{10}{50} \times 360^\circ$\)
\($=72^\circ$\)
mutal funds are a popular investment tool. To solve this lock you'll need to examine each asset allocation and determine the mutal fund type. Use the following key to string together the correct series of numbers and solve this lock
The lock can be solved by examining the asset allocation of each mutual fund and identifying its type according to the given key.
The correct series of numbers can then be obtained by concatenating the numbers corresponding to the mutual funds in the order in which they appear.
To solve the lock, we need to examine the asset allocation of each mutual fund and identify its type according to the given key. The key may include categories such as large-cap stocks, small-cap stocks, international stocks, bonds, and cash. Based on the asset allocation of each mutual fund, we can determine its type and assign a number from the key to it.
For example, if a mutual fund has an asset allocation of 60% large-cap stocks, 20% small-cap stocks, 10% international stocks, 5% bonds, and 5% cash, we can identify it as a large-cap stock fund and assign it the number 1 from the key. Similarly, if a mutual fund has an asset allocation of 30% small-cap stocks, 50% international stocks, 10% bonds, and 10% cash, we can identify it as an international stock fund and assign it the number 3 from the key.
Once we have identified the type of each mutual fund and assigned a number from the key to it, we can concatenate the numbers corresponding to the mutual funds in the order in which they appear to obtain the correct series of numbers for the lock.
For example, if the mutual funds in the order in which they appear are a large-cap stock fund, a bond fund, an international stock fund, and a cash fund, and their corresponding numbers from the key are 1, 4, 3, and 5 respectively, then the correct series of numbers for the lock would be 1435.
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What is the value of the expression below?
(16^2)^1/4
A. 4
B. 8
C. 16
D. 2.
4444444444444444444 4444444
Answer:
4
Step-by-step explanation:
A P E X:L E A R N I N G
This figure is made up of a rectangle and half a circle find perimeter of the figure to the nearest 10th show your work please use 3.14 for pi
The required perimeter of the given figure will be 60.84 m.
We have been given the figure which is made up of a rectangle and half a circle.
We have to determine the perimeter of the given figure.
As per the given figure, the required solution would be as:
The required perimeter = 2 × (rectangle's length) + rectangle's width + circumference of half a circle
The required perimeter = 2 × 15 + 12 + π × 6
The required perimeter = 30 + 12 + 3.14 × 6
The required perimeter = 30 + 12 + 18.84
Apply the addition operation, and we get
The required perimeter = 60.84 m
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If i start college at 19 what grade will i be in at 22
HELP PLEASE AND THANK YOU
If you enroll in college at age 19, you will likely be in your first year, sometimes known as your "freshman year." You will normally be in your third year or "junior year" at the age of 22 .
In America, can a 16-year-old enroll in college?You could still be admitted into college at age 16, even though applicants to colleges are normally at least 17 years old. You will probably need to complete additional documentation and obtain your parents' or guardians' written authorization because you are a younger person.
In America, can a 20-year-old attend college?Attending college is never too late. In actuality, there is no upper age limit for applicants, albeit older ones would need to go through a separate admissions procedure. Today's higher education institutions give adult and returning students the chance to further their studies on their own.
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What is the value of the expression (8 1/5 + 4 1/5) - (6 6/8 - 6 2/4)
The value of the expression (8 1/5 + 4 1/5) - (6 6/8 - 6 2/4) is 243/20.
How to determine the Value of the expressionLet's simplify the addition within the parentheses:
8 1/5 + 4 1/5 = (8 + 4) + (1/5 + 1/5) = 12 + 2/5 = 12 2/5
Next, let's simplify the subtraction within the parentheses:
6 6/8 - 6 2/4 = (6 - 6) + (6/8 - 2/4) = 0 + (3/4 - 1/2) = 0 + 1/4 = 1/4
Now, we can substitute the simplified terms back into the original expression:
(8 1/5 + 4 1/5) - (6 6/8 - 6 2/4) = 12 2/5 - 1/4
To subtract mixed numbers, we need to find a common denominator. The common denominator for 5 and 4 is 20. Converting both terms:
12 2/5 = 12 * 5/5 + 2/5 = 60/5 + 2/5 = 62/5
1/4 = 1 * 5/5 * 5/20 = 5/20
Now we can subtract:
62/5 - 5/20 = (62 * 4)/(5 * 4) - 5/20 = 248/20 - 5/20 = (248 - 5)/20 = 243/20
Therefore, the value of the expression (8 1/5 + 4 1/5) - (6 6/8 - 6 2/4) is 243/20.
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a suitcase lock has 4 dials with the digits $0, 1, 2,..., 9$ on each. how many different settings are possible if all four digits have to be different?
Are 5,040 different possible settings for the suitcase lock if all four digits have to be different.
For the first dial, there are 10 possible digits (0 to 9) that can be set. For the second dial, there are 9 remaining digits to choose from (since we cannot repeat the digit from the first dial). For the third dial, there are 8 remaining digits to choose from (since we cannot repeat any of the digits from the first two dials). Finally, for the fourth dial, there are 7 remaining digits to choose from.
Therefore, the total number of possible settings for the suitcase lock with all four digits different is:
10 × 9 × 8 × 7 = 5,040
There are 5,040 different possible settings for the suitcase lock if all four digits have to be different.
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A concave shaving mirror has a radius of curvature of +31.5 cm. It is positioned so that the (upright) image of a man's face is 3.40 times the size of the face. How far is the mirror from the face? Number i Units
The data includes a concave mirror with a radius of curvature of +31.5 cm and magnification of m = 3.40. The formula for magnification is m = v/u, and the focal length is f = r/2. Substituting the values, we get u = v/m, and using the mirror formula, the distance of the object from the mirror is 10.15 cm.
Given data: Radius of curvature of a concave mirror, r = +31.5 cm Magnification produced by the mirror, m = 3.40
We know that the formula for magnification is given by:
m = v/u where, v = the distance of the image from the mirror u = the distance of the object from the mirror We also know that the formula for the focal length of the mirror is given by :
f = r/2where,f = focal length of the mirror
Using the mirror formula:1/f = 1/v - 1/u
We know that a concave mirror has a positive focal length, so we can replace f with r/2.
We can now simplify the equation to get:1/(r/2) = 1/v - 1/u2/r = 1/v - 1/u
Also, from the given data, we have :m = v/u
Substituting the value of v/u in terms of m, we get: u/v = 1/m
So, u = v/m Substituting the value of u in terms of v/m in the previous equation, we get:2/r = 1/v - m/v Substituting the given values of r and m in the above equation, we get:2/31.5 = 1/v - 3.4/v Solving for v, we get: v = 22.6 cm Now that we know the distance of the image from the mirror, we can use the mirror formula to find the distance of the object from the mirror.1/f = 1/v - 1/u
Substituting the given values of r and v, we get:1/(31.5/2) = 1/22.6 - 1/u Solving for u, we get :u = 10.15 cm
Therefore, the distance of the mirror from the face is 10.15 cm. The units are centimeters (cm).Answer: 10.15 cm.
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The time, in minutes, it takes a random sample of 25 workers to complete a specific task is displayed in the histogram.
A histogram is shown with the x axis labeled Time, minutes, ranging from 0 to 60; and with the y axis labeled Number of Workers, ranging from 0 to 10. One bar from 6 to 10 with frequency 5, one bar from 11 to 15 with frequency 4, one bar from 16 to 20 with frequency 3, one bar from 21 to 25 with frequency 8, one bar from 26 to 30 with frequency 3, one bar from 31 to 35 with frequency 1, and one bar from 51 to 55 with frequency 1 are shown.
It was determined that the largest observation, 55 minutes, is an outlier, because Q3 + 1.5(Q3 − Q1) = 42.25. A boxplot has been created.
A boxplot is displayed with the left whisker extending from about 7 to 14, the left part of box extending from about 14 to 23, the right part of box extending from about 23 to 26, the right whisker extending from about 26 to 34, and a point at 55.
Does the boxplot represent the information given in the histogram?
A) Yes
B) No, the boxplot should be skewed right
C) No, the median should be in the middle of the box
D) No, the left whisker should extend to zero
E) No, the right whisker should extend to 55
Yes, the boxplot represent the information given in the histogram. (option a)
Based on the information given, the boxplot has a left whisker extending from about 7 to 14, the left part of the box extending from about 14 to 23, the right part of the box extending from about 23 to 26, the right whisker extending from about 26 to 34, and a point at 55. To determine if the boxplot represents the information given in the histogram, we need to compare the two graphs.
In conclusion, based on the given options, the correct answer is A) Yes, but we cannot determine if the boxplot accurately represents the information given in the histogram without seeing the histogram.
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f(x) = 4x³ + 6x² – 3x − 4
g(x) = 4x - 3
Find (f - g)(x).
Solution of the given algebraic expression (f-g)(x) is equal to 4x³+6x²-7x-1
What are algebraic equations?Algebraic equations are defined as mathematical statements in which two algebraic expressions are set equal to each other. An algebraic expression usually consists of variables, coefficients and constants. Algebraic equations can be of many types, such as monomial algebraic equations, binomial algebraic equations, quadratic algebraic equations, polynomial equations.
Given in the question that the value of f(x) is equal to 4x³+6x²-3x-4
and the value of g(x) is equal to 4x-3.
Subtracting g(x) from f(x) we get,
(f-g)(x)= 4x³+6x²-3x-4-4x+3
4x³+6x²-7x-1
Therefore, solution of the given algebraic expression (f-g)(x) is equal to 4x³+6x²-7x-1.
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8 of 8
Consider the following 8 numbers, where one labelled X is unknown.
17, 18, 24, X, 44, 48, 42, 4
Given that the range of the numbers is 51,
work out 2 values of X.
Answer:
55 and (-3)
Step-by-step explanation:
The range is the difference between the smallest number and the biggest number.
If we take 4 as the smallest number, X would be the biggest number:
4 + 51 = 55
If we take 48 as the biggest number, X would be the smallest number:
48 - 51 = -3
three support beams for a bridge form a pair of complementary angels. find the mesaure of each angle
The measure of each angle formed by the three support beams for a bridge is 45 degrees.
The question states that three support beams for a bridge form a pair of complementary angles. Complementary angles are two angles that add up to 90 degrees.
Let's denote the angles as Angle A and Angle B. Since the angles are complementary, we can set up the following equation:
Angle A + Angle B = 90 degrees.
To find the measure of each angle, we need to divide 90 degrees by 2 since there are two angles.
Angle A = Angle B = 90 degrees / 2 = 45 degrees.
Therefore, each angle measures 45 degrees.
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The measure of each angle is 45 degrees.
To find the measure of each angle, we need to understand what complementary angles are. Complementary angles are two angles that add up to 90 degrees.
In this case, we have three support beams for a bridge that form a pair of complementary angles. Since the angles are complementary, their sum is 90 degrees.
Let's assume the measure of one angle is x degrees. The other angle will be (90 - x) degrees, as their sum is 90 degrees.
Since the three support beams form a pair of complementary angles, we can set up the equation:
x + (90 - x) = 90
By simplifying the equation, we have:
90 - x + x = 90
90 = 90
This equation is true for any value of x. Therefore, the measure of each angle can be any value, as long as their sum is 90 degrees.
So, the measure of each angle is not fixed, but it will always add up to 90 degrees.
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Todor was trying to factor
10
�
2
−
5
�
+
15
10x
2
−5x+1510, x, squared, minus, 5, x, plus, 15. He found that the greatest common factor of these terms was
5
55 and made an area model:
To find the width of Todor's area model for the expression 10x² - 5x + 15x, we first factored out the GCF 5x. The factors of the GCF are 5, x, and -1/111, which we wrote in an area model. We then added the absolute values of the coefficients of the factors to get a width of 1 + (1/37).
The expression to factor is 10x² - 5x + 15x
Find the GCF of the terms in the expression
We can factor out 5x from all three terms
10x² - 5x + 15x = 5x(2x - 1 + 3)
The GCF of the expression is 5x.
Write the factors of the GCF with their coefficients in the area model
We can write the area model as in image.
To Find the width of the area model
The width of the area model is the sum of the absolute values of the coefficients of the factors. So, we can add the absolute values of the coefficients in the third row of the area model
|(-5/555)| + |1| + |(-1/111)| = (5/555) + 1 + (1/111) = 1 + (1/37)
Therefore, the width of Todor's area model is 1 + (1/37).
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--The given question is incomplete, the complete question is given
"Todor was trying to factor 10x²-5x+1510x
, x, squared, minus, 5, x, plus, 1510x. He found that the greatest common factor of these terms was 555 and made an area model:
What is the width of Todor's area model?"--
What is the product of –5 and –8?
–40
–13
13
40
Answer:
40
Step-by-step explanation:
product means multiplication
so -5×-8 = 40
(the negative are calceled)
Which equation represents a line which is parallel to the line 3x+y=8?
A. y=3x-4
B. y=−3x+2
C. y= 1/3x + 6
D. y= -1/3x-2
Answer:its A or C
Step-by-step explanation:i hope this helps
OMG GUYS HELP ME I GIVE 100 points what is 1+1 and what is 2-1 tell me!!! QUICK
Answer: 1 + 1 = 2
2-1 = 1
Step-by-step explanation:
basic math stuff
dont bs just answer the question dont play with me
Explain why you cannot factor the trinomial x2−15x+3
Question 8 options:
There are no factors of -15 that add up to 3.
It can be factored
There are no factors of 3 that add up to -15
Lets check how?
Factors of 3=1,3
Max value possible=1+3=4
4 is far bigger than -15Minimum value=-1-3=-4
-4 is also bigger than -15So Verified
Answer: x2 – 10x + 25 = (x – 5)(x – 5)
= (x – 5)2
construct a triangle ABC if AB = 4 cm, BC = 5 cm and Y = 30 °, then enter a circle
Answer:
Refer to the attachment \(\Huge {\nearrow}\)
Can't understand diagram? Don't worry See the Latex diagram coded below on webDiagram:-\(\Huge {\downarrow}\)\(\setlength{\unitlength}{1cm}\begin{picture}(20,15)\thicklines\qbezier (1,0)(1,0)(7,0)\qbezier(1,0)(1,0)(2,3)\qbezier (7,0)(7,0)(2,3)\put (0.5,-0.2){\sf X}\put(7.1,-0.2){\sf Y}\put(2,3.2){\sf Z}\end{picture}\)
A is the center of the circle, and the length of CD is 15 centimeters.
1. Select a segment that is a radius.
Answer:
All answers expect CD
Step-by-step explanation:
A circle is a shape that has a fixed point(called the center) that is equal from any point on the circle arc. A radius is from the center of the circle to the circumference( the circle's arc) and is half of the diameter.. Using those logic, AC,AD are a radius because it half of diameter, AE, AG, AB are one because it goes from the center of the circle to its point on the circle arc. C
CD is the diameter.
Ana compró una cartera cuyo precio original es de x dólares con el 10% de descuento y un perfume con precio original de B dólares con un descuento del 15%¿cuanto gasto en total Ana?
Answer:
Tarea:
Ana compró una cartera cuyo precio es x dólares con el 10% de descuento y un perfume con precio original en dólares con un descuento del 15%. ¿Cuánto gastó Ana en total?
- Solución:
El precio estará en lenguaje algebraico, ya que no nos dan el dato de cuánto costó cada artículo.
• Hallamos el precio de la cartera con el descuento:
El precio original es x, entonces:
Regla de tres:
100 % --------> x
10 % -----------> ?
10 . x : 100 = ?
10x/100 = ?
El 10% del precio de la cartera es 10x/100.
Entonces el precio de la cartera es (x-10x/100).
• Hallamos el precio del perfume con el descuento:
El precio original es y, entonces:
Regla de tres:
100% -------> y
15 % --------> ?
15.y/100
El 15% del perfume es 15y/100.
Entonces el precio del perfume con el descuento es (y-15y/100).
Entonces lo que gastó en total es:
(x - 10x/100) + (y - 15y/100)
Step-by-step explanation:
pls give me brainless
A recent article has found that 18% of adults do not have health insurance. Suppose we randomly select 120 adults and find that 15% of them do not have health insurance. Which of the following correctly describes the distribution for the sample proportion of adults in our sample who don't have health insurance? AN(0.18,0.0351) OP - AN(0.15,0.0326) O AN(0.18,0.0011) O X - B(120, 0.15)
The correct description for the distribution of the sample proportion of adults in the sample who don't have health insurance is X - B(120, 0.15).
B(120, 0.15) represents a binomial distribution with parameters n = 120 (the sample size) and p = 0.15 (the population proportion of adults without health insurance).
The binomial distribution is appropriate in this case because we have a fixed sample size and each individual in the sample can either have health insurance (success) or not have health insurance (failure). The sample proportion of adults without health insurance can be calculated by dividing the number of adults without health insurance by the total sample size.
Therefore, the correct description is X - B(120, 0.15).
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How do I look at the recently posted questions? i'm lost and I want to answer some questions but I forgot how to go to the section. Send help please.
There should be q icon that says give answer, to find new questions in that section refresh the page
The graphs shows the favorite colors chosen by some middle school students Favorite Colors Red Yellow Orange Blue Color Green Black Pink Purple 8 9 10 Number Which statement is supported by the information in the graph? Fewer than 30% of the students chose red yellow, or orange as their favorite color More than of the students chose pink as their favorite color. • Exactly 18% of the students chose blue as their favorite color. Exactly of the students chose green black or purple as their favorite color.
explain you answer choice
Answer:B
Step-by-step explanation:
Its b,i swear on my doggie
1. Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select all of the true
statements,
G
12
H
C6 D
4
00
В.
D
3
F
a. Segment EF is twice as long as segment AB.
b. Segment CD is twice as long as segment
FG
c. The measure of angle HEF is twice the
measure of angle DAB
d. The length of segment FH is 16 units.
e. The area of EFGH is twice the area of
ABCD.
А
E
A
B
С
E
Answer:
A and D
Step-by-step explanation:
Given that EFGH is a scaled copy of ABCD, EFGH is similar to ABCD. The ratio of the corresponding lenght of their segments are equal, and therefore have the same scale factor.
This means: \( \frac{EF}{AB} = \frac{FG}{BC} = \frac{GH}{CD} = \frac{EH}{AD} \)
We are given only the length of segment GH = 12. GH corresponds with segment CD = 6, therefore:
Scale factor = \( \frac{GH}{CD} = \frac{12}{6} = 2 \).
This implies that all length segments of ABCD was increased by 2 to get a scale copy of EFGH.
Angles in EFGH will have the same measures of degree as the corresponding angles in ABCD, because, it would have the same shape but only different in size.
The following statements are therefore true:
A. Segment EF is twice as long as segment AB. (Scale factor = 2)
D. The length of segment EH is 16 units. (EH = 2*AD = 2*8 = 16)
Out of 25 26 27 28 29 30 31 and 32 which one is a factor of 27
Answer:
27
Step-by-step explanation:
factors are numbers that divide exactly into a number , leaving no remainder.
then the only factor of 27 from the list is 27
solve -3/8y=-24 urgent it’s a timed test!
Answer:
y = 64Step-by-step explanation:
-3/8y = -24
-3y = -24 (8)
y = -192 / -3
y = 64
NEED HELP ASAP!!!!!
What is the probability that both events will occur?
A coin and a die are tossed.
Event A: The coin lands on heads
Event B: The die is 5 or greater
P(A and B)= ?
The probability that both Event A (coin lands on heads) and Event B (die is 5 or greater) will occur is 1/6.
To find the probability that both Event A (coin lands on heads) and Event B (die is 5 or greater) will occur, we need to determine the individual probabilities of each event and then multiply them together since the events are independent.
Event A: The coin lands on heads
A fair coin has two equally likely outcomes, heads or tails. Since we are interested in the probability of heads, there is only one favorable outcome out of two possible outcomes.
P(A) = 1/2
Event B: The die is 5 or greater
A fair six-sided die has six equally likely outcomes, numbers 1 through 6. Out of these six outcomes, there are two favorable outcomes (5 and 6) for Event B.
P(B) = 2/6 = 1/3
To find the probability of both events occurring (A and B), we multiply the individual probabilities:
P(A and B) = P(A) * P(B) = (1/2) * (1/3) = 1/6
Therefore, the probability that both Event A (coin lands on heads) and Event B (die is 5 or greater) will occur is 1/6.
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8 children have to share two thirds of a watermelon equally what part of the whole watermelon would each child get
Each child would get 1/12 th part of the whole watermelon.
For given question,
8 children have to share two thirds of a watermelon equally .
This means we need to equally distribute 2/3 of whole watermelon to 8 children.
To divide 2/3 part of of a watermelon equally into 8 parts, we need to divide 2/3 by 8.
(2/3) ÷ 8
= \(\frac{(\frac{2}{3} )}{8}\)
We know that in 8 = 8/1
So, we rewrite the denominator of above fraction as,
\(\frac{(\frac{2}{3} )}{8} \\\\= \frac{(\frac{2}{3} )}{(\frac{8}{1} )} \\\\=\frac{2}{3} \times \frac{1}{8} \\\\=\frac{1}{12}\)
This means, each child will get 1/12 part of the whole watermelon.
Therefore, each child would get 1/12 part of the whole watermelon.
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