Answer:
7 1/8
Step-by-step explanation:
1 1/8 + 1 1/8 is 2 2/8
2 2/8 + 4 7/8 is 6 9/8 = 7 1/8
Step-by-step explanation:
Integers only
b
Rational numbers only
c
Integers and Rational numbers only
d
Whole numbers, Integers, and Rational numbers
<span>Insect's blood transports nutrients to the body. It also carries waste away. Insects blood does not transport oxygen because most insects get oxygen through diffusion or through the many openings on their bodies.</span>
Answer:
28%
Step-by-step explanation:
3600$ × 20%
=3600 ×(20/100)
=3600 × 0.2
= 720
Actual Price = 3600 - 720
= 2880
Profit is at 4000$ = 4000 - 2880
= 1120$
%profit = (1120/4000) × 100
profit = 28%
There is a typo in the quadratic term.
I am goint to solve this question assuming that the correct expression is 162x + 731 = - y - 9x^2
Now, you should know that the vertex form is y = a(x - h)^2 + k, where the vertex is (h,k).
So, we just must transform the quadratic function into that form. To do that you must complete squares. I will do it step by step
start: 162 x + 731 = - y - 9x^2
1) Transpose terms:
y = - 9x^2 - 162x + 731
2) extract common factor ot the two terms with x^2 and x.
y = - 9 (x^2 + 18x) + 731
3) complete squares for x^2 + 18x, which is (x + 9)^2 - 81
=> y = - 9 [ ( x + 9)^2 - 81 ] + 731
4) solve the square brackets
=> y = - 9 (x + 9)^2 - 9*81 + 731
=> y = - 9(x + 9)^2 -729 + 731
=> y = - 9 (x + 9)^2 + 2
Answer: y = - 9 (x + 9)^2 + 2