add me on disc its not letting me explain what i wanted to explain its Andrew#6506
Michelle and Dave make extra money shoveling snow from their neighbors’ driveways. Michelle earns $45 for 3 hours. The amount Dave earns is represented by the graph shown. Which statement correctly compares the hourly earnings? HELP ME PLS
Answer:
Step-by-step explanation:
Michelle earns $3 an hour more than Dave.
can someone solve this 6 :7.4×10^4, 7 : 3.54"×10^5, 8 : 9.03×10^5,. 9 :5.7 ×10^0
please
6: 74000
7: 354000
8: 8903000
9: 57
Adam age is 5 times as old as Charles.
In 8 years’ time, the sum of their ages will be equal to twice Adam’s present age. Find their present age.
Let Charles age be x
Adam age will be 5x
8 years later , add 8 to both expressions
Charles age = x+8
Adam age = 5x+8
add their ages and equate them to twice adam's present age 2*5x
x+8+5x+8 = 2*5x
6x+16=10x
4x=16
x=4
x = Charles' age
Adam's age 5x = 5(4) = 20
GEOMETRY STUFF!! PLSS HELPP, NEED ANSWERS AND SOLUTIONS RN!!
Applying the angle bisector and triangle proportionality theorem, the solutions are:
16. x = 1/2 or x = 4
17. x = 5
18. x = −1 or x = 6.
What is the Angle Bisector Theorem?The angle bisector theorem states that when a line segment divides one of the angles of a triangle into two halves, it also divides the triangle to form segments that are proportional to each other.
16. 3x/(x - 1) = (x + 4)/(x - 2) [triangle proportionality theorem]
Cross multiply
(x - 1)(x + 4) = 3x(x - 2)
x² + 3x - 4 = 3x² - 6x
x² - 3x² + 3x - 4 + 6x = 0
-2x² + 9x - 4 = 0
Factorize -2x² + 9x - 4
(−2x + 1)(x − 4)
-2x = -1
x = 1/2
or
x = 4
17. (2x + 2)/(x + 3) = (4x - 2)/(2x + 2)
(2x + 2)(2x + 2) = (4x - 2)(x + 3)
4x² + 8x + 4 = 4x² + 10x - 6
Combine like terms
4x² - 4x² + 8x - 10x = -4 - 6
-2x = -10
x = -10/-2
x = 5
18. (2x + 3)/(x + 4) = x/(x - 2) [angle bisector theorem]
Cross multiply
(2x + 3)(x - 2) = x(x + 4)
Expand
2x² - x - 6 = x² + 4x
2x² - x - 6 - x² - 4x = 0
x² - 5x - 6 = 0
Factorize x² - 5x - 6 = 0
(x+1)(x−6) = 0
x = −1 or x = 6
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For the standard normal distribution, find the value of c such that: P(z>c)=0.415 c= (Round your answer to 3 places after the decimal point, if necessary.)
To find the value of c such that P(z > c) = 0.415 for the standard normal distribution, we need to determine the z-score associated with the given probability. The value of c represents the critical value that corresponds to the area to the right of the z-score.
Using a standard normal distribution table or a calculator, we can find the z-score that corresponds to a probability of 0.415. The z-score represents the number of standard deviations a particular value is away from the mean. In this case, we are interested in finding the z-score that corresponds to the area to the right (greater than) the desired probability.
Using the table or calculator, we find that the z-score associated with a probability of 0.415 is approximately 0.180. Therefore, the value of c is 0.180 (rounded to 3 decimal places).
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The top row of seats behind home plate at Cincinnati’s Great American Ball Park is 90 ft above the level of the playing field. The angle of depression to the base of the left field wall is 14 degrees. How far is the base of the left field wall from a point on level ground directly below the top row?
please answer with explanation and diagram if possible :)
Using the slope concept, it is found that the base of the left field wall is 361 feet from a point on level ground directly below the top row.
What is a slope?The slope is given by the vertical change divided by the horizontal change.It's also the tangent of the angle of depression.In this problem:
The vertical change is of 90 ft.The horizontal change is of x.The angle of depression is of 14º.Hence:
\(\tan{14^{\circ}} = \frac{90}{x}\)
\(0.249328 = \frac{90}{x}\)
\(0.249328x = 90\)
\(x = \frac{90}{0.249328}\)
\(x = 361\)
Hence, the base of the left field wall is 361 feet from a point on level ground directly below the top row.
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Which system of equations has the same solution as the system below?
5+2g = 45
4x + 4y = 48
-
Submit Answer
O
5x – 4y = –90
4x + 4y = 48
O
-10x – 4y = -90
4x + 4y = 48
--
-10x + 2y = -90
4x + 4y = 48
-10x – 4y = 45
4x + 4y = 48
Answer: (1) (2) (4)
Step-by-step explanation:
Find all values of x in the interval [0, 2] that satisfy the equation. (enter your answers as a comma-separated list.) 5 sin(2x) = 5 cos(x)
All values of x in the interval [0, 2] that satisfy the equation are \(\frac{\pi }{2} ,3\frac{\pi }{2}\).
What is an equation?A mathematical equation is a formula that uses the equals symbol (=) to connect two expressions and express their equality. A well-formed formula consisting of two expressions linked by an equals sign is considered to be an equation in English, but the word's cognates in other languages may have slightly different definitions. For instance, an équation is defined as having one or more variables in French.
The first step in resolving a variable equation is to identify the values of the variables that lead to the equality being true. The variables that must be changed in order to solve the equation are referred to as the unknowns, and the values of the unknowns that satisfy the equality are referred to as the equation's solutions.
Calculations:
16cos(x +8sin(2x)=0
Divide by 8
2cos(x)+sin(2x)=0
Identity:
sin(2x)=2sin(x)cos(x)
2cos(x)+2sin(x)cos(x)=0
Factor:
2cos(x)(1+sin(x))=0
2cos(x)=0
cos(x)=0=x=\(\frac{\pi }{2}\),3\(\frac{\pi }{2}\)
(1+sin(x))=0
sin(x)=−1=x=3\(\frac{\pi }{2}\)
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answer the question below.
Answer:
x = 6
MP = 30
Step-by-step explanation:
5x = 3x + 12
2x = 12
x = 6
MP = 5x = 5 × 6
MP = 30
A 12,000 gallon pool is being filled at a rate of 40 gallons per minute. At this rate, how many minutes will take it to fill the entire pool
Answer:
30
Step-by-step explanation:
\(\left \{ {{y=3x+28} \atop {y=-4x}} \right.\)
Answer:
x = -4 and y = 16
Step-by-step explanation:
3x + 28 = -4x
28 = -4 x + -3x
28 = -7x
x = -4
To solve for y
y = -4 (-4)
y = 16
Circle P has a radius of 5cm. Point Q lies on circle P, and the equation of PQ is y=2/5x+3. Which equation could be the equation of a line tangent to circle P at point Q?
the answer would be B....
Answer:
Option C
Step-by-step explanation:
Correct on Edmentum
when calculating the process capacity of a specific process, it is important to consider the order in which a stage occurs when determining its stage capacity.true or false
True. When calculating the process capacity of a specific process, it is important to consider the order in which a stage occurs when determining its stage capacity.
This statement is true. Considering the order of stages helps to accurately identify bottlenecks and ensures an efficient process flow. This is because the capacity of a stage can be affected by the preceding stages and the flow of the process. The stage capacity will also determine the overall capacity of the process.
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Which of the following is the definition of the sine ratio in a right triangle
Answer:
Oppositeleg
adjacenleg
Answer:
option 1
Step-by-step explanation:
Just remember this to get the trigonometric ratio in a right triangle :
Old Henry And His Old Aunt
O for opposite
H for hypotenuse
A for Adjacent
Sin = O/ H
Cos = A /H
Tan = O /A
Line l has a slope of m and contains points in quadrants I, II, and IV, but no points from quadrant III. Which of the following must be true about the value of m?
a) m < 0
b) m > 0
c) m = 0
d) slope m is undefined
The correct answer is (a) m < 0.Since line l contains points in quadrants I, II, and IV, but not in quadrant III, we can deduce the following.
Quadrant I: In this quadrant, both x and y coordinates are positive. For a line in quadrant I, the slope (m) must be positive. Quadrant II: In this quadrant, x coordinates are negative, and y coordinates are positive. For a line in quadrant II, the slope (m) must be positive. Quadrant IV: In this quadrant, x coordinates are positive, and y coordinates are negative. For a line in quadrant IV, the slope (m) must be negative.
Based on the observations in all the relevant quadrants, we can conclude that the slope (m) must be both positive and negative, indicating that it can take on both positive and negative values. Therefore, the correct answer is (a) m < 0.
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Simplify the expression: -4z -6 - 7z + 3
Which of the following is a prime number?
A. 67
B. 65
C.63
D.60
Answer:
A. 67
Step-by-step explanation:
Answer:
67
Step-by-step explanation:
2(3×+4)=4×+12 i need help with this problem
Answer:
x = 2
Step-by-step explanation:
2(3x + 4) = 4x + 12
6x + 8 = 4x + 12
2x + 8 = 12
2x = 4
x = 2
i just need some help real quick
5*X=45
what is X
Answer:
x = 9
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
I assume the * sign is multiplication so 5x9=45
45/5=9 to find the answer also.
Hope this helps!
What is the answer???
Answer:
f = 90 + 32
= 122° (exterior angle)
Does bin width matter when it comes to histograms? Why or why not?
Answer:
Avoid histograms with small bin widths that group data into lots of bins. A histogram constructed with small bin widths will show the distribution as a “pancake.” so no it does not help us see the pattern in the data.
Step-by-step explanation:
a solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. the total volume of the solid is 10 cubic centimeters. find the radius r (in cm) and height h (in cm) of the cylinder that produces the minimum surface area.
The radius r that produces the minimum surface area is 1.06 cm and the height h is 1.41 cm.
Let r be the radius of the cylinder and h be the height. You can find the equation for the volume of a solid by adding the volumes of the two hemispheres and the cylinder.
Volume = \((2/3)πr^3 + πr^2h\) = 10 cubic centimeters
Now let's find the values of r and h that minimize the surface area of the solid. This area consists of three parts:
Curved surfaces of two hemispheres and sides of a cylinder. This can be expressed as:
surface area = \(2πr^2 + 2πrh\)
To find the values of r and h that minimize this expression, we can use the Lagrangian multiplier method. Given that the volume of the solid is 10 cubic centimeters, we want to minimize the surface area. So it looks like this:
\(f(r, h) = 2πr^2 + 2πrh + λ[(2/3)πr^3 + πr^2h - 10]\)
Taking the partial derivatives for r, h, and λ and setting them to zero gives
\(4πr + 2πh = 2πr^2λ + (4/3)πr^3λ\)
\(2πr = πr^2λ + πrhλ\)
Solving these equations simultaneously gives:
h = 4r/3
λ = 2/(3r)
Substituting these values into the volume equation gives:
\(r^2h = 5/3\)
Substituting h = 4r/3 from above, we get:
\(r^3 = 15/8pi\)
Taking the cube root of both sides gives:
r=1.06cm
Substituting this value for r into the formula for h yields:
h=1.41cm
Therefore, the radius r that produces the minimum surface area is about 1.06 cm and the height h is about 1.41 cm.
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huhhh help anyone 3^-6 times (3^4 divided by 3^0)2
simplify the expression 7(4+t)-2(t+3)
Find the present value of a sequence of annual payments of Rs 25000 each , the first being made at the end of 5th year and the last being paid at the end of 12th year, if money is worth 6%.
The present value of the sequence of annual payments of Rs 25000 each, the first being made at the end of the 5th year and the last being paid at the end of the 12th year, if money is worth 6% is Rs. 158620.39.
1: We can use the formula to calculate the present value of the annuity:
P = A x [1 - (1+i)^-n] / i
Where
P = Present Value
A = Annuity
i = Interest Raten = Number of payments
2: Calculate the present value of each payment using the formula:
P1 = 25000 / (1.06)⁵
P2 = 25000 / (1.06)⁶
P3 = 25000 / (1.06)⁷
P4 = 25000 / (1.06)⁸
P5 = 25000 / (1.06)⁹
P6 = 25000 / (1.06)¹⁰
P7 = 25000 / (1.06)¹¹
P8 = 25000 / (1.06)¹²
3: Substitute the values into the formula to find the present value:
P = P1 + P2 + P3 + P4 + P5 + P6 + P7 + P8
P = (25000 / (1.06)⁵) + (25000 / (1.06)⁶) + (25000 / (1.06)⁷) + (25000 / (1.06)⁸) + (25000 / (1.06)⁹) + (25000 / (1.06)¹⁰) + (25000 / (1.06)¹¹) + (25000 / (1.06)¹²)
P = 158620.39
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3(v+2)+v=4(v-1)+9 no solution one solution and what does v equal or all numbers are solutions (will give brainliest
The number of solution the given equation 3(v+2)+v=4(v-1)+9 has is 0 and value of v is not defined
How to find the solution to the given system of equation?For that , we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in other equation to get linear equation in one variable.
If there comes a = a situation for any a, then there are infinite solutions.
If there comes wrong equality, say for example, 3=2, then there are no solutions, else there is one unique solution to the given system of equations.
We are given that;
The equation 3(v+2)+v=4(v-1)+9
Now, by solving the equation
3v+6+v=4(v-1)+9
Solving the coefficients;
3v+6+v=4v-4+9
4v+6=4v+5
0=5
Therefore, the given equation will have no solution.
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Balance the following equation: CCl4 --> C + Cl2
The balanced equation is:
CCl₄ --> C + 2Cl₂
Define term term balancing of chemical equation?The law of conservation of mass states that when a chemical reaction takes place, the mass of the reactants and products should be equal.
As a result, during the chemical process, the number of atoms for each element remains constant. The chemical equation which it depicts the chemical reaction must be balanced as a result. When the total number of atoms found in the reactants and products sides of a chemical equation equals one, the equation is said to be balanced.Here is an equation that describes a chemical reaction:
CCl₄ --> C + 2Cl₂
Reactant = 1 atom of C and 4 atoms of Cl.Product = 1 atom of C and 2 atoms of Cl.Thus, add 2 atoms of Cl to balance the equation.
Then,
The balanced equation is:
CCl₄ --> C + 2Cl₂
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in the diagram,the measure of angle ACB is 25 degrees. what is the measure of angle AOB?
Answer:
m<AOB = 50°
Step-by-step explanation:
<ACB = 25° is an inscribed angle of the circle.
<AOB is a central angle of the circle.
Thus, based on the inscribed angle theorem which states that an inscribed angle is ½ the measure of the central angle, therefore:
m<ACB = ½(m<AOB)
Substitute
25° = ½(m<AOB)
Multiply both sides by 2
2*25 = m<AOB
m<AOB = 50°
Please family ordered four pizzas that ate 3/4 of each piece of how many pieces did they eat all together
Answer:
3 pizzas
Step-by-step explanation:
\( \frac{3}{4} \times 4 = 3\)
Which of these procedures is NOT the same as multiplying a whole number by 1,000?
a.Move each digit of the whole number three places to the left and fill in the blank places with zeros.
b.Multiply the whole number by 10, three times.
c.Add 1,000 to the number, ten times.
d.Move the decimal point three places to the right and fill in the blank places with zeros.
help me please this is so confusinggg
Answer:
C
Step-by-step explanation:
If you add 1,000 to a number 10 times, it will only increase the number by 10,000, not multiply the number by 1,000.