Answer:
see below
Step-by-step explanation:
1. 0 = (r + 1)(r + 8)
Using Zero Product Property, r = -1, r = -8
2. h(r) = (r + 1)(r + 8)
= r² + 9r + 8
= (r + 9/2)² - 81/4 + 8
= (r + 4.5)² - 12.25 (Complete the square)
Vertex: (-4.5, -12.25)
Answer:
three quarter noted as as fraction would be 3/4
each quarter note is 1/4 of a whole note, or one beat in a measure of 4-4
so three of them would be
1/4+1/4+1/4=3/4
Answer:
Step-by-step explanation:
<u>Work hours Monday till Friday:</u>
- 3.5 + 5 + 2.5 + 4 + 2 = 18 hours
<u>Payment for 5 days:</u>
- 15*$8 + (18 - 15)*$10 = $150
<u>Payment for Saturday:</u>
<u>Total payment:</u>
Answer:
11
<em>or</em>
2(5)+2-3
Step-by-step explanation:
if a = 5 and b=2,
you add it into the expression.
2a + b -3 --> 2(5) + 2 - 3
all you have to do is replace the letters with the (given) numbers.
then, solve.
2(5) = 10
2-3= 1
10+1 =11
the answer is 11.
:)
X=4
After squaring both sides, you get
4(x+5)=x^2-20x+100
Multiply
4x+20=x^2-20x+100
Collect like terms
4x+20-x^2+20x-100=0
Reorder
24x-80-x^2=0
Change signs & Write as difference. You end up with
x^2-4x-20x+80=0
Factor
x-4=0 , x-20=0
4=4 , 0=20
x=4
