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3 years ago

Evaluate g(x)=3x when x= -2,0,and 5 g(-2)=? g(0)=? g(5)=?

Mathematics

1 answer:

serious [3.7K]3 years ago

6 0

Answer:

g(-2) = -6

g(0) = 0

g(5) = 15

Step-by-step explanation:

For each of the evaluations, you have to plug in the number everywhere where there is an x

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Which expression is equivalent to (3x + 2)(2x – 8)?

Zinaida [17]

Answer:

no.3

Step-by-step explanation:

(3x+2)(2x-8)

6x^2 - 24x + 4x - 16

6x^2 - 20x - 16

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What is P(A and B)?

Sindrei [870]

Answer:

(A) 0.08

Step-by-step explanation:

P(A) = 0.8

P(B) = 0.1

P(A and B)

= 0.8 x 0.1

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3 years ago

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What is the solution of the system? Use the graph. y=x+5 y=-5x-1

olga55 [171]

Y = x + 5
y = -5x -1

so than you make y = y so x + 5 = -5x -1 result 6x = -6 so x = -6/6 so x = -1
and than you check it

y = - 1 +5 = 4
and
y = - 5 *(-1) -1 = 5 -1 = 4

so this mean that - 1 is the solution of the system sure

3 0

3 years ago

Find the sum of the first 47 terms of the following series, to the nearest integer.

topjm [15]

Answer:

The sum of the first 47 terms of the given series = 6016

Step-by-step explanation:

Given the sequence

13, 18, 23, ...

An arithmetic sequence has a constant difference 'd' and is defined by

$a_n=a_1+\left(n-1\right)d$

$18-13=5,\:\quad \:23-18=5$

As the difference between all the adjacent terms is the same.

$d=5$

$a_1=13$

Arithmetic sequence sum formula

$n\left(a_1+\frac{d\left(n-1\right)}{2}\right)$

Put the values

$d=5$

$a_1=13$

$n=47$

$=47\left(13+\frac{5\left(47-1\right)}{2}\right)$

$=47\left(13+115\right)$

$=47\cdot \:128$

$=6016$

Thus, the sum of the first 47 terms of the given series = 6016

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2 years ago

At the mall, buying a pair of shoes and buying a book are independent events.The probability that a shopper buys shoes is 0.15.

IRISSAK [1]

Answer:

The probability that a shopper buys shoes and a book is 0.015

Step-by-step explanation:

we are given

The probability that a shopper buys shoes is 0.15

so, we have

$p(s)=0.15$

The probability that a shopper buys a book is 0.10

so, we have

$p(b)=0.10$

the probability that a shopper buys shoes and a book can be written as

p(s∩b)

we are given that

s and b are independent

so,

p(s∩b) $=p(s)\times p(b)$

now, we can plug values

p(s∩b) $=0.15\times 0.10$

p(s∩b) $=0.015$

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3 years ago

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