MATHEMATICS HIGH SCHOOL

Find the product.
(n + 8)(n - 2)

Answers

Answer 1
Answer: (n)(n)=n^2
8n-2n=6n
(8)(-2)=-16
Solution:
n^2+6n-16
Answer 2
Answer:

n^2-n*2+8n-16

n^2-2n+8n-16

=n^2+6n-16

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Gender: Grade 9 Grade 10 Grade 11 Grade 12Male: 53 19 27 37
Female: 31 42 50 61
What percentage of females are in grades 11 and 12? Round to the nearest percent.
27%
35%
60%
67%

Answers

(50+61) / (31 +42 +50 +61) * 100 = 111/187 * 100 = 59.35

The third option: 60%

Answer:

60%

Step-by-step explanation:

Which expression describes 9 less than 5 times some number​

Answers

Answer:

9 - 5x I think

Step-by-step explanation:

How do I simplify this polynomial

Answers

25x^5/5x^2

You need to divide 25 by 5 and subtract the exponent

5x³


I hope that's help:0

Calculate f(4) for each function below

Answers

The question is about Evaluating Functions and to calculate f(4) for each function, we substitute 4 into the function and simplify. The values of f(4) for the given functions are: a) 16, b) 12, c) 5.6569, d) 0, e) 8, f) 44y.

Evaluating functions involves determining the output (or value) of a mathematical function for a given input (or argument). It's done by substituting the input value into the function's equation and solving for the result. In the context of functions like f(x), you replace 'x' with the specific value you want to assess. This process helps analyze how a function behaves, finding its y-value or dependent variable. Evaluating functions is crucial in various fields, such as mathematics, science, and engineering, to understand relationships and make predictions based on input-output mappings.

To calculate f(4) for each function, we substitute 4 into the function and simplify. Let's calculate:

a) f(x) = x2
Substitute 4 into the function:
f(4) = 42 = 16

b) f(x) = √144
Substitute 4 into the function:
f(4) = √144 = 12

c) f(x) = √32
Substitute 4 into the function:
f(4) = √32 ≈ 5.6569

d) f(x) = 3x - 12
Substitute 4 into the function:
f(4) = 3(4) - 12 = 0

e) f(x) = (x - 2)^3
Substitute 4 into the function:
f(4) = (4 - 2)^3 = 8

f) f(x) = 4xy + 7xy
Substitute 4 into the function:
f(4) = 4(4)y + 7(4)y = 16y + 28y = 44y

Learn more about Evaluating Functions here:

brainly.com/question/18543961

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Subtitute x = 4 to the equations:

b)\ f(x)=\left((1)/(5)\right)^x\to f(4)=\left((1)/(5)\right)^4=(1^4)/(5^4)=(1)/(625)\n\nc)\ f(x)=3x-12\to f(4)=3\cdot4-12=12-12=0\n\nd)\ f(x)=(x-2)^3\to f(4)=(4-2)^3=2^3=8

if one in every 10 pieces of fruit is a currant and two in every five is a cherry what proportion are raisins

Answers

1/10 currant
2/5 is cherry × 2 to get it out of 10
so 4/10 (cherry) + 1/10 (currant) = 5/10 so 5 raisins

The one to one functions G and H are defined as followG={(-8,1),(1,5),(4,-5)(8,-9)}
H(x)=3x+4
find the following 
g^-1(1)=
h^-1(x)=
(h^-1oh)(-2)=

Answers

G=\{(-8,1),(1,5),(4,-5),(8,-9)\}\n\n\Rightarrow\ \ \ G^(-1)=\{(1,-8),(5,1),(-5,4),(-9,8)\}\ \ \ \Rightarrow\ \ \ g^(-1)(1)=-8\n\nH(x)=3x+4\ \ \ and\ \ \ D_H=R\n\n 3x=H(x)-4\ \ \ \Rightarrow\ \ \ x= (H(x)-4)/(3)\n\nh^(-1)(x)= (x-4)/(3) \ \ \ and\ \ \ D_(h^(-1))=R\n\n\n(h^(-1)\circ h)(-2)=-2\n\nh^(-1)\bigg {(}h(-2)\bigg{)}=h^(-1)\bigg {(}3(-2)+4\bigg{)}=h^(-1)(-2)= (-2-4)/(3) = (-6)/(3) =-2
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