You have 9n and -7 in total so the answer is 9n-7. You add up all the numbers and then add up the numbers with n attached to them
Answer:
= 
Step-by-step explanation:
Differentiate xy using the product rule, then
Given
x - y = xy
1 - = x. + y. 1 = x + y ( subtract 1 from both sides )
- = x + y - 1 ( subtract x from both sides )
- - x = y - 1 ( multiply through by - 1 )
+ x = 1 - y
(1 + x) = 1 - y ← divide both sides by (1 + x)
=
Answer:
22.9 m
Step-by-step explanation:
Circumference = π × diameter
Using a calculator to evaluate 7.3π, we get 22.933626...
Rounding this to the nearest tenth gives 22.9. Units are meters.
Let the what be represented with x.
So what times what = 252
x*x = 252
x² = 252 Take the square root of both sides
√x² = √252 Use your calculator
x = 15.875
The what is 15.875
