Answer:
There were 5 kids at a halloween party. They each took 5 pieces of candy. How many pieces were taken?
This can be used as a word problem because the negative signs can work as a symbol meaning "taken away". Also, -5 * -5 is 25, so it would correctly state that there were 25 pieces of candy taken away.
Answer:
If x passed science, then
x + x+9 - 15 = 60
60-15 = 45 passed only one subject
Step-by-step explanation:
pls correct me if I'm wrong
ans by alien
Answer:
function not provided
Step-by-step explanation:
y = mx +b is slope intercept formula
b is the y intercept and m is the slope (rise/run) ,
if slope is multiplied by 1/2 then multiply the m value in original function by 1/2
if 3 is added to the y intercept value then add 3 to the b value in original function.
then compare to plots given,
y intercept is where the line crosses the y axis
slope is how much the line goes up over how much it goes to the side
Answer:
The surface area is ![305.9\ ft^{2}](https://tex.z-dn.net/?f=305.9%5C%20ft%5E%7B2%7D)
Step-by-step explanation:
we know that
The surface area of the square pyramid is equal to
![SA=b^{2}+4[\frac{1}{2}bh]](https://tex.z-dn.net/?f=SA%3Db%5E%7B2%7D%2B4%5B%5Cfrac%7B1%7D%7B2%7Dbh%5D)
where
b is the length side of the square base
h is the height of the lateral triangular face
we have
![b=10\ ft](https://tex.z-dn.net/?f=b%3D10%5C%20ft)
Applying Pythagoras Theorem find the value of h
![h^{2}=9^{2}+(10/2)^{2}](https://tex.z-dn.net/?f=h%5E%7B2%7D%3D9%5E%7B2%7D%2B%2810%2F2%29%5E%7B2%7D)
![h^{2}=81+25](https://tex.z-dn.net/?f=h%5E%7B2%7D%3D81%2B25)
![h=\sqrt{106}\ ft](https://tex.z-dn.net/?f=h%3D%5Csqrt%7B106%7D%5C%20ft)
substitute in the formula
![SA=10^{2}+4[\frac{1}{2}(10)(\sqrt{106})]=305.9\ ft^{2}](https://tex.z-dn.net/?f=SA%3D10%5E%7B2%7D%2B4%5B%5Cfrac%7B1%7D%7B2%7D%2810%29%28%5Csqrt%7B106%7D%29%5D%3D305.9%5C%20ft%5E%7B2%7D)