Answer:
31 and 69
Step-by-step explanation:
x+2x+7=100
3x+7=100
3x=93
x=31
2x+7=2·31+7=62+7=69
Answer:
side length= 8 meters
diagonal = 11.31
Step-by-step explanation:
take the square root of 64 to find the length of the side, which is 8.
Then do 8 times the square root of 2 to find the diagonal.
Answer:
(x + 1)(x - 1)(x² + 9)
Step-by-step explanation:
Factorise the following:
x⁴ + 8x² - 9

The factors of -9 that sum to 8 are 9 and -1.
So,
x²(x² + 9) - 1(x² + 9)
(x² - 1)(x² + 9)
x² - 1 = x² - 1²:
(x² - 1²)(x² + 9)
Factor the difference of two squares.
x² - 1² = (x + 1)(x - 1):
(x + 1)(x - 1)(x² + 9)
Answer:
The answer is

Step-by-step explanation:
❃Incase you forgot what the linear equation formula is ☟

❃Incase you also forgot, The is what the slope formula is ☟

➊ First: We are going to be solving for the slope.

➋Second: We find the y-intercept.

➌Third: Plug in.
