Given: -3x-2=2x+8
Find: graph the line for left and right hand side for the given equation.
Explanation: forleft hand side
\(\begin{gathered} -3x-2=y \\ y+3x=-2 \\ \frac{y}{-2}+\frac{x}{\frac{-2}{3}}=1 \end{gathered}\)for right hand side
\(\begin{gathered} 2x+8=y \\ y-2x=8 \\ \frac{y}{8}+\frac{x}{-4}=1 \end{gathered}\)To calculate her cat's age in "human
years," Brenda multiplied the cat's
age by 4 and then added 16. Which
table correctly represents this
relationship between a cat's
age
and the age for a person?
Answer: it is c
Step-by-step explanation:
Consider the hospital from problem 4 of the homework that is using a statistical test to decide whether or not to accept future shipments of syringes from a supplier. The two errors the can make are to reject shipments that are actually acceptable and to accept shipments that do not meet the requirements. The hospital has decided that the error of accepting shipments that do not meet the requirements is substantially more important. They would like to ensure that they do not make this error even if that means increasing the chance that they reject acceptable shipments. When selecting their alpha (choosing between 0.01, 0.05 and 0.10) which alpha level provides the highest protection against this type of error?
a) alpha-0.01
b) alpha-o.05
c) alpha-0.10
Answer:
The correct option is a
Step-by-step explanation:
Gnerally assuming that
The null hypothesis is that the syringes from a supplier does not meet the requirement
and
The alternative hypothesis is that the syringes from a supplier meets the requirement
Now in order not to commit type I error which is wrongfully rejecting the null hypothesis then the level of significance need to be lower than the p-value (this is obtained from the z-table for any given z-score ) hence the suitable level of significance to achieve the hospitals aim is alpha-0.01
please help!
mathematics question
Answer:
k = 6 and k = -4
Step-by-step explanation:
To determine two integral values of k (integer values of k) for which the roots of the quadratic equation kx² - 5x - 1 = 0 will be rational, we can use the Rational Root Theorem.
The Rational Root Theorem states that if a rational number p/q is a root of a polynomial equation with integer coefficients, then p must be a factor of the constant term (in this case, -1) and q must be a factor of the leading coefficient (in this case, k).
Possible p-values:
Factors of the constant term: ±1Possible q-values:
Factors of the leading coefficient: ±1, ±kTherefore, all the possible values of p/q are:
\(\sf \dfrac{p}{q}=\dfrac{\pm 1}{\pm 1}, \dfrac{\pm 1}{\pm k}=\pm 1, \pm \dfrac{1}{k}\)
To find the integral values of k, we need to check the possible combinations of factors. Substitute each possible rational root into the function:
\(\begin{aligned} x=1 \implies k(1)^2-5(1)-1 &= 0 \\k-6 &= 0 \\k&=6\end{aligned}\)
\(\begin{aligned} x=-1 \implies k(-1)^2-5(-1)-1 &= 0 \\k+4 &= 0 \\k&=-4\end{aligned}\)
\(\begin{aligned} x=\dfrac{1}{k} \implies k\left(\dfrac{1}{k} \right)^2-5\left(\dfrac{1}{k} \right)-1 &= 0 \\\dfrac{1}{k}-\dfrac{5}{k}-1 &= 0 \\-\dfrac{4}{k}&=1\\k&=-4\end{aligned}\)
\(\begin{aligned} x=-\dfrac{1}{k} \implies k\left(-\dfrac{1}{k} \right)^2-5\left(-\dfrac{1}{k} \right)-1 &= 0 \\\dfrac{1}{k}+\dfrac{5}{k}-1 &= 0 \\\dfrac{6}{k}&=1\\k&=6\end{aligned}\)
Therefore, the two integral values of k for which the roots of the equation kx² - 5x - 1 = 0 will be rational are k = 6 and k = -4.
Note:
If k = 6, the roots are 1 and -1/6.
If k = -4, the roots are -1 and -1/4.
Suppose you wish to apply SSA to a triangle, in order to find an angle measure. Also suppose the given side of a triangle, opposite to a given angle, is greater than the given side. Which of the following statements is true?
Consider a triangle ΔABC, where sides AB, BC and angle ∡C are given.
Angle ∡C is the angle opposite of side AB.
It says that the given side opposite the given angle is less than the other given side. It means AB < BC.
It says that the ratio of the longer side to the shorter side, multiplied by the sine of the angle opposite the shorter side, is less than 1. It means
\(\frac{BC}{AB}\) · sin(C) < 1
We know about Law of Sines of Triangle is given by :-
\(\frac{AB}{sin(C)} =\frac{BC}{sin(A)} =\frac{AC}{sin(B)}\)
\(< br/ > Solving\) \(\frac{AB}{sin(C)} =\frac{BC}{sin(A)}\)
\(< br/ > Cross\) \(Multiplying\)
\(< br/ > AB\) \(sin(A)=BC\) \(sin(C)\)
\(< br/ > sin(A)=\frac{BC}{AB}\) \(sin(C)\)
\(< br/ > sin(A) < 1\) \\
We got sin(A) < 1, and BC > AB.
Therefore, angle ∡A could be either acute or obtuse angle.
So, There will be two solutions for the angle ∡A.
⇒ option D is the final answer.
What is the pair of fractions of 1/4 & 1/3
The pair of fractions 1/4 and 1/3 when evaluated is; 7/12.
What is the pair of fractions of 1/4 &1/3?From the task content;
The addition of the pair of fractions 1/4 and 1/3 is required.On this note, it follows that the common factor between the two fractions is used in evaluation.
This therefore follows that the pair of fractions is; 7/12.
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Find the critical value needed to construct a confidence interval of the given level with the given sample size. Round the answer to at least three decimal places. Level 99%, sample size 10.
Answer:
1.894
3.169
2.064
3.690
Step-by-step explanation: 90% ; sample size = 8
Degree of freedom, df = n - 1
t(1 - α/2, 7) = t0.05, 7 = 1.894
An art supplies store sells boxes that contain colored pencils and markers. Each box has a colored pencil to marker ratio of 5 to 2. Complete the table for the missing number of colored pencils, markers, or total number of colored pencils and markers in each box for sale.
Based on the information, we can infer that the tables are completed as follows: 5, 10, 15, 4, 8.
How to complete the table of ratios?To complete the table of the ratios we must take into account the information provided in the fragment. According to the above, in box A for every two markers there are 5 pencils and in box B for every three markers there are 4 pencils. Then the ratios would be the following:
Box A
2 markers, 5 pencils.4 markers, 10 pencils.6 markers, 15 pencils.box B
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3(X + 3) 3/4 = 81
what is the answer
Answer:
the correct answer would be 33
Step-by-step explanation:
hope this helps :)
Given the function: f(x) = 2x + 3.
Find the value of f(x) when x = -8.
Answer: f(x) = -13
Step-by-step explanation:
Answer:
-13
Step-by-step explanation:
f(x) = 2(-8) + 3
= -16 +3
= -13
This month my metro water services bill was $36.34 and my Madison Suburban Utilty District bill was $26.03. My total water bill was $
Total water bill for the month is $62.37.
It seems that you may have accidentally left out the total amount of your water bill.
The total amount by simply adding the amounts of the individual bills together:
Total water bill =\($36.34 + $26.03\)
= \($62.37\)
You have not provided enough information to determine your total water bill.
You have only given the amounts of your individual bills from Metro Water Services and Madison Suburban Utility District.
To find your total water bill, you simply need to add the two bills together.
So, the total amount you owe for water this month would be:
Total water bill = \($36.34 + $26.03\)
= \($62.37\)
It appears that you may have forgotten to include the full amount of your water bill by accident.
Simple addition of the separate bill amounts yields the following sum:
Water bill total = \($36.34 + $26.03\)
= \($62.37\)
Your total water bill cannot be calculated because not enough information has been given.
Only the amounts of your individual Metro Water Services and Madison Suburban Utility District bills have been provided.
You just need to combine the two invoices together to get your total water bill.
As a result, this month's total water bill for you would be:
Water bill total = \($36.34 + $26.03\)
= \($62.37\)
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You draw a rectangle with vertices at (-3.5,3), (3.5,3), (3.5,-3), and (-3.5,-3).
What is the perimeter and area of the rectangle?
The perimeter and the area of the rectangle are 26 units and 42 square units, respectively.
What is a rectangle?A rectangle is a quadrilateral with all four interior angles 90°.
Given that, the vertices of the rectangle are (-3.5,3), (3.5,3), (3.5,-3), and (-3.5,-3).
The length of the rectangle is:
l = 3.5 - (-3.5)
l = 3.5 + 3.5
l = 7
The width of the rectangle is:
w = 3-(-3)
w = 3 + 3
w = 6
The perimeter of the rectangle is given by:
P = 2 (l +w)
P = 2(7 + 6)
P = 26
The area of the rectangle is:
A = l × w
A = 7 × 6
A = 42
Hence, the perimeter and the area of the rectangle are 26 units and 42 square units, respectively.
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Help please I don’t understand
Answer:
Answer is -6
Step-by-step explanation:
first do from small bracket -(-6)=+6
and then -6-6=-12
do-12+6=-6
Imagine that you are representing your classmates. What are their needs? What would you advocate for their behalf? Not math related
Answer:
As a former runner upper Senior Class Secretary I can say that your classmates need the following:
1. To be respected, even when others may not respect them.
2. They need a leader who can listen to what they have to say and DO SOMETHING about it.
3. They need the feeling of commitment when given the oppurtunity to improve.
4. They need rules, guidlines and restrictions.
(I would advocate that we have a strong leader....Is it going to be you?)
Combine like terms to create an equivalent expression −3.6−1.9t+1.2+5.1t
Answer:
-2.4+3.2t
Step-by-step explanation:
\(-3.6-1.9t+1.2+5.1t\\\\=(-3.6+1.2)+(-1.9+5.1)t\\\\=-2.4+3.2t\)
Answer:
-2.4+3.2t
Step-by-step explanation:
Khan
Help Me with this please
Answer:
B) Δ+5
Step-by-step explanation:
Means that Austin has $5 more than Mark
Hope this helps
Solve the system of equations
y = 9x
y = 5x + 24
X = blank
Y = blank
An ant colony is built by 200 ants. The number of ants triples each week. How many ants will be in the colony at the end of the eighth week?
Find the numbers with the following property three times the sum of four and a number is less than seven times the same number
Let's represent the number with the variable "x". According to the given property, we can write the following equation:
3(x + 4) < 7x
Now, let's solve this inequality to find the range of numbers that satisfy the property.
3x + 12 < 7x
Subtract 3x from both sides:
12 < 4x
Divide both sides by 4 (since the coefficient of x is 4):
3 < x
So, the range of numbers that satisfy the given property is x > 3.
Therefore, any number greater than 3 will satisfy the condition. For example, 4, 5, 6, 7, 8, etc.Step-by-step explanation:
Hello! I need some assistance with this homework question, pleaseQ8
The difference quotient can be found by the formula:
\(\frac{f(x+h)-f(x)}{h}\)Where h is not 0, because it would be a division by 0.
In this case, we have the function:
\(f(x)=x^2-7x+1\)Then using the forumla:
\(\frac{f(x+h)-f(x)}{h}=\frac{(x+h)^2-7(x+h)+1-(x^2-7x+1)}{h}\)The next step is to solve the binomial squared, and do a distributive property.
We can solve the squared binomial using:
\((a+b)^2=a^2+2ab+b^2\)Then:
\(\frac{(x+h)^2-7(x+h)+1-(x^2-7x+1)}{h}=\frac{x^2+2xh+h^2-7x-7h+1-x^2+7x-1}{h}\)Here we can see that there are several terms equal but with different sign. We can cancel out the terms x², 7x and 1
\(\frac{x^2+2xh+h^2-7x-7h+1-x^2+7x-1}{h}=\frac{x^2-x^2-7x+7x+1-1+2hx+7h+h^2}{h}=\frac{h^2+2hx-7h}{h}\)Now we can factor out the h in the numerator:
\(\frac{h(h+2x-7)}{h}\)Which cancels out with the denominator, and we get:
\(\frac{f(x+h)-f(x)}{h}=2x-7+h\)And that's the result of the problem.
Express 602.16 dam in decimeters
The expression of 602.16 dam in decimeters can be written as 60216 decimeter.
How can the expression of 602.16 dam be converted to decimeters?The concept that will be used in the calculation is conversion. to perform this conversion, it is important to note that 1 Decimeter (dm) is equal to 0.01 dekameter (dam).
Then, if 1dm = 0.01 dam
Xdm = 602.16 dam
Where x is the value in decimeter.
Then we can cross multiply as :
X= (602.16 dam * 1dm)/ 0.01 dam
= 60216 decimeter.
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10 x 1/2+(-6)(-3) simplified in steps
Answer:
the answer is:
(12) + (18) = 30
I need help on some math questions be ready.
Here’s 1 and 2.
1. A) Y=3x+7
2. B) y=5 x
Identify the probability to the nearest hundredth that a point chosen randomly inside the rectangle is either in the circle or in the trapezoid.
The probability that a point is chosen randomly inside the rectangle is either in the circle or in the trapezoid is 0.23 option first is correct.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
The area of the rectangle = 30×21 = 630 square m
The total outcomes = 630 square m
The favorable outcomes = area of the circle + area of the trapezoid
= π(5)² + [(11+15)/2]×5
= 78.53 + 65
= 143.53 square m
Probability(a point chosen randomly inside the rectangle is either in the circle or in the trapezoid):
= 143.53/630
= 0.227 ≈ 0.23
Thus, the probability that a point is chosen randomly inside the rectangle is either in the circle or in the trapezoid is 0.23 option first is correct.
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Answer:
0.13
Step-by-step explanation:
I guessed and got it correct. Sorry, I cant show work, I hope it helped!! <3
What is the meaning of "\( \varphi (x,y)\) be \( y\wedge \phi (x)\) "?
The given passage provides a proof that the Separation Axioms follow from the Replacement Schema.
The proof involves introducing a set F and showing that {a: e X : O(x)} is equal to F (X) for every X. Therefore, the conclusion is that the Separation Axioms can be derived from the Replacement Schema.In the given passage, the author presents a proof that demonstrates a relationship between the Separation Axioms and the Replacement Schema.
The proof involves the introduction of a set F and establishes that the set {a: e X : O(x)} is equivalent to F (X) for any given set X. This implies that the conditions of the Separation Axioms can be satisfied by applying the Replacement Schema. Essentially, the author is showing that the Replacement Schema can be used to derive or prove the Separation Axioms. By providing this proof, the passage establishes a connection between these two concepts in set theory.
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A TV station is going to air a movie marathon with 8 movies. It will consist of 2 science fiction movies and 6 horror movies. The horror movies will be aired later in the evening. So, all of the horror movies will be aired last (after both of the science fiction movies). In how many ways can the station air the movie marathon?
Answer:
Total ways to run movies = 1,440
Step-by-step explanation:
Given:
Number of total movies = 8
Number of science fiction movie = 2
Number of horror fiction movie = 6
Find:
Total ways to run movies.
Computation:
Number of science fiction movies way air = 2!
Number of science fiction movies way air = 2×1
Number of science fiction movies way air = 2
Number of horror fiction movies way air = 6!
Number of science fiction movies way air = 6×5×4×3×2×1
Number of science fiction movies way air = 720
Total ways to run movies = 2 × 720
Total ways to run movies = 1,440
Please answer ASAP need steps.
Answer:
The ANSWER is 1/2 x (3/5) : (9/15) (-6/4) : (4/1) = -3/16 = -0.1875
Step-by-step explanation:
Multiple: 1/2 * 3/5 = 1 · 3/2 · 5 = 3/10
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(3, 10) = 1. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - one half multiplied by three fifths is three tenths.
Divide: the result of step No. 1 : 9/15 = 3/10 : 9/15 = 3/10 · 15/9 = 3 · 15/10 · 9 = 45/90 = 45 · 1/45 · 2 = 1/2
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 9/
15 is 15/9) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the following intermediate step, cancel by a common factor of 45 gives 1/2.
In other words - three tenths divided by nine fifteenths is one half.
the result of step No. 2 * (-6/4) = 1/2* (-6/4) = 1 · (-6)/2 · 4 = -6/8 = -3 · 2/4 · 2= -3/4
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(-6, 8) = 2. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - one half multiplied by minus six quarters is minus three quarters.
Divide: the result of step No. 3 : 4 = -3/
4 : 4 = -3/4 · 1/4 = -3 · 1/4 · 4 = -3/16
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 4/
1 is 1/4) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - minus three quarters divided by four is minus three sixteenths.
Graph that line with slope -1 passing through the point (-2,4)
Answer:
To graph the line with slope -1 passing through the point (-2,4), we can use the point-slope form of the equation of a line, which is:
y - y1 = m(x - x1)where m is the slope of the line, and (x1, y1) is the given point on the line. Substituting the given values, we get:
y - 4 = -1(x - (-2))Simplifying this equation, we get:
y - 4 = -x - 2y = -x + 2Now we can graph this line by plotting the given point (-2,4), and then using the slope of -1 to find one or more additional points on the line. We can do this by starting at the given point and then moving one unit down (since the slope is negative) and one unit to the right (since the slope is -1). This gives us the point (-1,3). We can then connect these two points to graph the line.
GRAPHICAL REPRESENTATION:|
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3.5% of a number is 49 what is my original nnumber
Answer:
1400
Step-by-step explanation:
To preface, we should think about how percentages are taken from original numbers, and we may apply the operations oppositely.
First, let's set up an equation.
Let 3.5% equal to 49, where 3.5% is multiplied by x and x = the unknown factor.
3.5x = 49
Divide both sides by 3.5 to get x by itself.
3.5x/3.5 = 49/3.5
= x = 14.
Multiply the number by 100 and you will get your answer of 1400.
Check:
3.5% to decimal is... 3.5/100 = 0.035.
Multiply the quotient by the answer 1400 and you will obtain the given number of a percentage.
0.035 x 1400 = 49.
Calculate the value for the for the following scores 20, 60, 30, 50 given:
begin inline style begin display style sum for blank of end style end style x squared =
The sum of the scores is equal to 160.
What is a mean?In Mathematics, a mean is sometimes referred to as an average and it can be defined as a ratio of the sum of the total number in a data set (population) to the frequency of the data set.
How to calculate the mean for a data set?Mathematically, the mean for this set of scores can be calculated by using the following formula:
Mean = [F(x)]/n
For the total number of scores (data set), we have;
∑x = 20 + 60 + 30 + 50
∑x = 160.
Mean = [F(x)]/n = 160/4 = 40.
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7.(06.04)
5x + 1/2 y^2
What is the value of the expression above when x = 3 and y = 2? You must show all work and calculations to receive full credit. (4 points)
Answer:
17Step-by-step explanation:
Given expression:
5x + 1/2y²Value of expression when x = 3 and y = 2:
5*3 + 1/2*2² =15 + 2 =17Answer:
5x + 1/2 y² when x = 3 and y = 2
\(→\boxed{5x + \frac{1}{2} {y}^{2} } = 5(3) + \frac{1}{2} {(2)}^{2} \\ = 5(3) + \frac{1}{2} (4) \\ = (15 + 2) \\ = \boxed{ 17}✓\)
17 is the right answer.