MATHEMATICS HIGH SCHOOL

Determine whether (6,4) is a solution of y = 19x - 2.

Answers

Answer 1
Answer:

Answer:

Not a solution

Step-by-step explanation:

To determine if a pair of coordinates is the solution to an equation, just plug it in.

Given that the equation is:

y = 19x - 2

And the coordinates they give us to evaluate:

(6, 4)

Plug the coordinates in:

y = 19x - 2

4 = 19(6) - 2

4 = 114 - 2

4 = 112

4 ≠ 112

4 is not equal to 112. Therefore this pair is not the solution.
Answer 2
Answer:

Answer:  No, it's not a solution.

Explanation

The point (6,4) tells us that x = 6 and y = 4 pair up together.

Plug those values into the equation. Simplify both sides as much as possible (use PEMDAS). If we get the same thing on both sides, then that point is a solution to the equation.

y = 19x - 2

4 = 19*6 - 2

4 = 114 - 2

4 = 112

We get different values on each side. Therefore, the point (6,4) is not a solution to the equation.

Another approach you could do is graph the equation using a tool like Desmos. GeoGebra works as well. The point (6,4) is not on the diagonal line. Check out the diagram below to see what I mean.

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A sneaker store salesman had $4,125 in total monthly sales last month. he made $165 in commission from those sales. what is the salesman's commission as a percent of his total monthly sales?

Answers

He made (165)/(4125) as a commission. To turn that into a percentage, you need to make the bottom become 100. Multiply the top and bottom by (100)/(4125) to get the proper fraction. The fraction now is ((16500)/(4125))/(100) This simplifies to (4)/(100). Now all you need to do is take the top of that fraction to get the percentage, which is 4%.

4%

Multiply the following

Answers

(5(y+4))/(2)

5x+4=19 i need help agian

Answers

Answer:

x = 3  

Step-by-step explanation:

5x + 4 = 19

5x +4 -4 = 19 -4

5x = 15

5x / 5  = 15 / 5

x = 3  

Which is the best way to solve the equation x^2 = n?​

Answers

Answer:

  see below

Step-by-step explanation:

You solve an equation by undoing what is done to the variable. When the variable is squared, as here, you undo the squaring by taking the square root. Any operation you do on one side of the equation must also be done on the other side. Hence, you take the square root of both sides of the equation.

Solve for “?” by finding a pattern that utilizes every number within each arrangement. The third arrangement will have the same pattern as the first two arrangements. 3 9 8 6 =14
10 2 7 3=16
11 8 17 4 =?

"? can be 19,30, 22 or 32"

Answers

The pattern for first and second arrangement:
3 + 9 + 8 - 6 =14
10 + 2 + 7 - 3 = 16
Third arrangement:
11 + 8 + 17 - 4 = 32
the answer is 32. the pattern works out as the first three number added together minus the last one

A regulation basketball has a diameter of about 9 inches. What is the best approximation of the volume of the ball?3050 in3

84.8 in3

382 in3

215 in3

Answers

Answer:  The correct option is (C) 382 in³.

Step-by-step explanation:  Given that a regulation basketball has a diameter of about 9 inches.

We are to select the best approximation of the volume of the ball.

We know that basketball is of the shape of a SPHERE.

The VOLUME of a sphere with radius 'r' units is given by the formula:

V=(4)/(3)\pi r^3.

The diameter of the basketball is about 9 inches, so its approximate radius will be

r=(9)/(2)=4.5~\textup{inches}.

Therefore, the approximate volume of the basketball is

V\n\n\n=(4)/(3)\pi r^3\n\n\n=(4)/(3)* 3.14* (4.5)^3\n\n\n=(4*3.14* 91.125)/(3)\n\n\n=381.51~\textup{in}^3~\textup{[approx.]}\sim 382~\textup{in}^3.

Thus, the best approximation of the volume of the ball is 382 in³.

Thus, (C) is the correct option.

382 in3

Just look up volume of a sphere and a thing comes up all you have to put in is the radius (aka half of 9 which is 4.5) You're welcome.
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