Answer:
11
Step-by-step explanation:
Each side on the smaller quadrilateral is half the length of the larger one. So since the corresponding side is 22, then half of that is 11.
ta da!
hope this helped :)
Answer:
x= 2 Square root 2
Step-by-step explanation:
x^2=8
x= Square root 8
=2 Square root 2
Set up a system of equations.
x + y = 7
5x + 6y = 39
x + y = 7
x = -y + 7
Substitute -y + 7 into the 2nd equation for 'x':
5(-y + 7) + 6y = 39
Distribute 5:
-5y + 35 + 6y = 39
Combine like terms:
y + 35 = 39
Subtract 35 to both sides:
y = 4
Plug this into any of the two equations to get 'x'
x + y = 7
x + 4 = 7
Subtract 4 to both sides:
x = 3
So she pulled weeds for more than 1 hour 3 times.
Answer:
You have to give the number by which the 20% is increased in order to cross multiply and divide by a hundred to find the missing % of the decrease. Otherwise, you would simply subtract 20% from 100%, which seems unlikely to be the answer. We need more information.
Step-by-step explanation:
Answer:
The answer is
Step-by-step explanation:
Given: f(x) = 3 + 2x - x²
To compute f(3 + h) substitute x = 3 + h.
Similarly, to compute f(h) simply substitute x = h.
We are asked to compute 
f(3 + h) = 3 + 2(3 + h) - {(3 + h)²}
= 3 + 6 + 2h - {9 + 6h + h²}
= 9 + 2h - 9 - 6h - h²
= - 4h - h²
Now, f(h) = 3 + 2h - h²
f(3 + h) - f(h) = -4h - h² - 3 - 2h + h²
= -6h - 3
which is the required answer.
