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3 years ago

He first five terms in the arithmetic sequence an = 8n, starting with n = 1.

2 answers:

7 0

8,16,24,32,40
All you have to do is replace the n in 8n with the sequance number you're looking for
like for instance:
8(1)=8
8(2)=16

GuDViN [60]3 years ago

5 0

$a_n=8n\\ \\a_1=8\cdot1=8\\a_2=8\cdot2=16\\a_3=8\cdot3=24\\a_4=8\cdot4=32\\a_5=8\cdot5=40$

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Choose one of the factors of x^3 + 343.

Debora [2.8K]

First, note that $343=7^3.$ Then use the formula for the sum of perfect cubes:

$a^3+b^3=(a+b)(a^2-ab+b^2).$

Therefore,

$x^3 + 343=x^3+7^3=(x+7)(x^2-7x+49).$

The quadratic trinomial $x^2-7x+49$ couldn't be factored anymore, so the expression $x^3 + 343$ has two factors $x+7$ and $x^2-7x+49.$

Answer: correct choice is A.

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3 years ago

Chase had $236.00 in his savings account. Then he spent 34% or that money on a new skateboard. How much money did Chase spend on

Taya2010 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Write an equation of the line below.

Dafna11 [192]

Answer:

$\large\boxed{y=4x+3}$

Step-by-step explanation:

The slope-intercept form of an equation of aline:

$y=mx+b$

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b - y-intercept

The formula of a slope:

$m=\dfraxc{y_2-y_1}{x_2-x_1}$

From the graph we have the points:

(-2, -5)

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Calculate the slope:

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3 years ago

Julie is a cashier. She can ring up 12 customers in 9 mintesutes. At the rate, how many minutes does it take for her to ring up

oksano4ka [1.4K]

Answer:

5.2

Step-by-step explanation:

ok so we need to find the unit rate( how many customers per minute) and thats 12 divided by 9 which is 1.3 minutes per customer so now we need to find what 1.3 minutes is x4 customers. This brings us to 5.2.

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2 years ago

I need to figure out the answer

ANEK [815]

Hello there,

If c=-2 just plug in -2 for every c you see.

(-2)²-7(-2)-8
This simplifies to
4+14-8
18-8
10

Hope this helps!

3 0

3 years ago

Read 2 more answers