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3 years ago

8th grade math probability

Mathematics

1 answer:

kari74 [83]3 years ago

3 0

In problem 16 I think the answers is b

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If : f(x)=x^2, g(x)=x-1. Find (f×g)(x).

kramer

Answer:

$\boxed{ f\cdot{g}(x) = x {}^{3} - x {}^{2}}$

Step by step explanation:

Given that,

$f(x) = {x}^{2}$

$g(x) = x - 1$

Solution:

Solving for (f•g)(x):

$= f(x) \cdot g(x)$

Now substitute the given values.

$= x {}^{2} \cdot(x - 1)$

$= x {}^{2} (x - 1)$

Apply distributive property:

$= (x ^{2} \cdot x) - x {}^{2} \cdot 1$

$\boxed{ f\cdot{g}(x) = x {}^{3} - x {}^{2}}$

Hence,f•g(x) will be $x {}^{3} - x {}^{2}$ .

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2 years ago

Evaluate each expression if a=4, b=6 and c=3 5b-6c

iragen [17]

Answer:

it is 12

Step-by-step explanation:

4 0

3 years ago

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The student enrollment of South High School was 1,350 students in 1995 and increased by 15% per year until 2010. Approximately h

exis [7]

Answer: 10,985 students

Step-by-step explanation:

You are given the original number of students, the rate of growth and the number of years. The Future value formula can therefore be used:

Number of students in 2010 = Number of students in 1995 * ( 1 + growth rate) ^ number of years

Number of years = 2010 - 1995 = 15 years

Number of students in 2010 = 1,350 * ( 1 + 15%)¹⁵

= 10,985 students

8 0

3 years ago

The function b(n) = 12n represents the number of baseballs b(n) that are needed for n games. how many baseballs are needed for 1

marysya [2.9K]

Given that the function b(n) = 12n represents the number of baseballs b(n) that are needed for n games.

Then the number of baseballs needed for 15 games is given by b(n) = 12(15) = 180.

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3 years ago

After 2/3 of an hour, the tightrope walker has traveled 1/6 of a mile across Niagara Falls. How many miles will he have to trave

Jlenok [28]

Answer:

1/4

Step-by-step explanation:

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3 years ago

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