Answer:
A) A = 4x^2 - x - 5
B) f(2) = 9
Step-by-step explanation:
area is L x W, so you multiply 4x - 5 with x + 1
A = (4x - 5)(x + 1)
which gives you
A = 4x^2 - x - 5
you would then plug in 2 for x which gives you your answer of
9
Hope this helps you :)
Answer:
1 and 3
Step-by-step explanation:
Step 1 is clearly elaborated. Tax is impliedd on the discounted price.
In step 3, the steps of deductions are skipped.
Like 1 + 10% = 110% and 1 - 20% = 80%
Step 2 is simply wrong. Because the percentages are implied on different values.
Answer:
B.70
Step-by-step explanation:
For one or two angles are complementary angle(s), they have to equal 90°.
So, we need to find the larger angle, but what about the other?
Let x be the other angle and y be the angle we are looking for
x + y = 90
Lets look for x first, since one angle is ten less than four times the angle we are looking for or visa versa, we must:
y = 4x - 10
For an exchange, lets take out the y variable for another x variable:
So now we should have x + 4x - 10 = 90
Combine like terms and do cross equation :
x + 4x -10 = 90
5x - 10 = 90
Add 10 to both sides:
5x = 100
100/5 = 20
So <u><em>x=20</em></u>
<u><em></em></u>
Now for y which is what we are looking for,
y = 4x - 10
Since x is 20, plug it in
y = 80 - 10
y=70 is our larger angle
<span>B. Square the number of the term, n</span>
Answer:
y=-x
Step-by-step explanation:
It's going left one by one, meaning the slope is negative and has a slope of -1 or -x.
