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3 years ago

Which sequences are geometric? Select 3 options.

Mathematics

2 answers:

Andrei [34K]3 years ago

9 1

A,B,D are your answers :)

FrozenT [24]3 years ago

5 1

Answer:

A, B, AND D ARE THE ANSWERS ON EDGE-NUITY!

Step-by-step explanation:

HERE I'LL SHOW YOU:

Which sequences are geometric? Select three options.

✔️–2.7, –9, –30, –100, ...

✔️–1, 2.5, –6.25, 15.625, ...

9.1, 9.2, 9.3, 9.4, ...

✔️8, 0.8, 0.08, 0.008, ...

4, –4, –12, –20, ...

*pasted from e2020/edge-nuity*

I hope this helps! I GAVE PROOF!

<h2>PLEASE MARK BRAINLIEST!</h2>

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Find three consecutive odd integers such that the sum of the smaller two is three times larger increased by seven

sukhopar [10]

Answer:

three consecutive odd integers: 2n-1 2n+1 2n+3

that the sum of the smaller two is three

times larger increased by seven: 2n-1 + 2n+1 = 3(2n+3) +7

4n = 6n+ 9 +7

4n = 6n+ 16

4n -6n = 16

-2n = 16

n = 16/(-2)

n=-8

a) 2n -1 = 2(-8) -1 = -17

b) 2n+1 = 2(-8)+1 = -15

c) 2n+1 = 2(-8)+3 = -13

Ans. -17 ; -15 ; -13

4 0

3 years ago

HELP PLEASE

kolezko [41]

Answer: 16 feet is the width and 25 is length

Step-by-step explanation:

x*(2x-7)=400

Word problem written in numerical form^^^^

Solve for x to get 16

length = 2(16)-7= 25

Check our work

16*25=400 yay

6 0

3 years ago

The width of a rectangle is 9 cm. The perimeter is 40 cm. What is the length of the rectangle?

Keith_Richards [23]

Answer:

Step-by-step explanation:

2(l+w)

40= 2(9+x)

40= 18+2x

Subtract 18 from 40

22=2x

Divide 2x by itself and 22

11=x or x=11

6 0

3 years ago

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Which explains whether or not the function represents a direct variation?

s2008m [1.1K]

Answer:

The function represents a direct variation

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a linear direct variation the line passes through the origin and the constant of proportionality k is equal to the slope m

Let

$A(0,0)$ ------> the line passes through the origin

$B(2,10)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=10/2=5$

$C(4,20)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=20/4=5$

$D(6,30)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=30/6=5$

$E(8,40)$

Find the value of k------> substitute the value of x and y

$y/x=k$ -----> $k=40/8=5$

The value of k is equal in all the points of the table and the line passes through the origin

therefore

The function represents a direct variation

the equation of the direct variation is equal to

$f(x)=5x$

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3 years ago

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Help me plot please.

Veronika [31]

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3 years ago

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