Answer:
The Second Number is 90.
Step-by-step explanation:
P.S Can I have brainliest?
Answer:
A
Step-by-step explanation:
multiply 9 by 12 to get the surface area of the end of the rectangle.
you should get 108.
multiply 12 by 9 to get the surface area of the side.
you should get 135.
multiply 12 by 15 to get the surface area of the bottom.
you should get 180.
then add all your answers and multiply by 2 this will give you the total surface area and you will find that the answer is A.
Y=2.50x+20. Plug in values for x starting at 0 and you will get values for y and then graph.
I assume you are being asked to solve these equations. Since there wasn't an explanation as to how you are expected to solve them, I chose to demonstrate how to use a calculator matrix function. You can find matrix calculators online. My instructions are for a TI-84
Push the blue 2nd button then push x^-1 button (it says matrix above this button in blue)
Arrow over to edit to change the dimensions of the matrix and to put in your values. You have 3 equations (3 rows) and 4 terms (4 columns) so you put a 3x4 in for the dimension and the coefficients (see images).
You use the rref option in the math column in matrix to calculate the answer.
The numbers at the end are the solutions. x = -4, y = 2, z = -1
Answer:
8 inches
Step-by-step explanation:
Volume of a cube: side length cubed
x^3=512
Taking the cubic root of both sides, we get
x=8