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Marizza181 [45]
3 years ago
6

Last yearrhere were 1436 8th grade students enrolled at your school. This year there are 1220. What is the percent change in the

number of 8th grade students?
Mathematics
1 answer:
Tanzania [10]3 years ago
8 0

\frac{1220 \times 100}{1436}  \approx 85\% \\ 100\% - 85\% = 15\% \: change

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Please I need help ASAP
nata0808 [166]

Answer:

i believe the answer is 52.4%

7 0
3 years ago
Read 2 more answers
Let $f(x)$ be a quadratic polynomial such that $f(-4) = -22,$ $f(-1)=2$, and $f(2)=-1.$ Let $g(x) = f(x)^{16}.$ Find the sum of
Murrr4er [49]

Answer:

The sum of the coefficients of the terms in (-1.5·x² + 0.5·x + 4)¹⁶ that have even degree is  -4273411167.501

Step-by-step explanation:

The parameters given are;

f(-4) = -22

f(-1) = 2

f(2) = -1

g(x) = f(x)¹⁶

The function f(x) is presented as follows;

f(x) = a·x² + b·x +c

We have;

-22 = a·(-4)² + b·(-4) +c

-22 = a·16 - 4·b +c ..............(1)

2 = a·(-1)² + b·(-1) +c

2 = a - b +c...........................(2)

-1 = a·(2)² + b·(2) +c

-1 = 4·a + 2·b +c...................(3)

Solving the equations (1), (2), and (3) by using an online linear systems solver, we get;

a = -1.5, b = 0.5, c = 4

Therefore, f(x) = -1.5·x² + 0.5·x + 4

f(x)¹⁶ = (-1.5·x² + 0.5·x + 4)¹⁶ which gives the coefficients of the even terms as follows;

656.841 - 19267.331 + 248302.054 - 1772904.419 + 6735603.932 - 2868054.635 - 119602865.901 + 750783340.827 + -2542435585.611 + 5338903756.992 - 6048065910.25 -1031335136 + 17223697920 - 32238338048 + 32107397120 - 17716740096 = -4273411167.501.

3 0
3 years ago
PLEASE ANSWER!!
s344n2d4d5 [400]
D
{x}^{2}  + 2xy \\  { ( - 3)}^{2}  + 2( - 3)(5) \\ 9 + 2( - 15) \\ 9 + ( - 30) \\  - 21
7 0
3 years ago
Leela made goody bags for her party and put 5 pieces of candy in each bag. She bought gummies and chocolates yo put in het goody
slavikrds [6]

Answer:

4 ways

Step-by-step explanation:

1 gummy 4 chocolates

2 gummy 3 chocolates

3 gummy 2 chocolates

4 gummy 1 chocolates

This is what i think the answer is hope it helps

5 0
3 years ago
1-cos^2 A / sec^2 A - tan^2 A
tiny-mole [99]
I hope this helps you



✔cos^2A+sin^2A=1


✔1-cos^2A=sin^2A

✔cos2A=cos^2A-sin^2A

✔sin2A=2.sinA.cosA


secA=1/cosA


tgA=sinA/cosA


sin^2A/1/cos^2A-sin^2A/cos^2A


sin^2A.cos^2A/cos2A

2.sin^2A.cos^2A/cos2A


sin2A.2.sin2A/cos2A


tg2A.2.sin2A


6 0
3 years ago
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