Answer:
(a) -7, (b) 2
Step-by-step explanation:
a) When x = 0,
=> x² - 8x - 7
=> (0)² - 8(0) - 7
=> 0 - 0 - 7
=> - 7
b) When x = -1,
=> x² - 8x - 7
=> (-1)² - 8(-1) - 7
=> 1 + 8 - 7
=> 9 - 7
=> 2
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>
Answer:
30 feet
Step-by-step explanation:
A ratio of 4:3 means that if one part can be represented by x, the original height is equal to 4 * x and the mural height is equal to 3 * x. This is because the ratio of original : mural is 4 : 3, so if one part = x, we have 4 * x : 3 * x. Therefore,
original mast height = 40 feet
4 * x = original mast height = 40 feet
divide both sides by 4 to get x
x = 10 feet
3 * x = mural mast height = 3 * 10 feet = 30 feet
Answer:
What do you need help with?
Step-by-step explanation:
First, we must find the length and width of the stone. To do this, divide the area by the side that we know. 7/10*5/4 This comes to 7/8, the other side length. Adding 7/8 and 5/4 together and multiplying by two gives us the perimeter. This comes out to 17/4, or 4 and 1/4 inches. Therefore, 3.5 inches of wiring would not be enough. Please mark Brainliest!!!
Answer:
-13
Step-by-step explanation:
All you have to do is substitute -7 in for a.
