2 years ago

PLEASE HELP ME I BEG YALLL IMA FAIL IF I DONT FINSIH THIS AND ILL MARK BRAINLISET

1 answer:

3 0

D is wrong. It’s an exponential function so every year the number of stores it opens grows. Which means there can’t be one number for each year in terms of amount of new stores.

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2. Suppose (220)_b and (251)_b are the squares of consecutive integers. Determine b.

Andrei [34K]

Let $x$ and $x+1$ be these consecutive integers. For some base $b$ , we can write

$(x_{10})^2=220_b=2b^2+2b$

$((x+1)_{10})^2=251_b=2b^2+5b+1$

$x^2=2b^2+2b$

then

$x^2+1=2b^2+2b+1$

Now,

$x^2+2x+1=2b^2+5b+1$

$2x+2b^2+2b+1=2b^2+5b+1$

$\implies2x=3b$

Squaring both sides gives

$4x^2=9b^2$

and so

$4(2b^2+2b)=9b^2$

$\implies8b^2+8b=9b^2$

$\implies b^2-8b=0\implies\boxed{b=8}$

(because the base has to be non-zero)

3 0

3 years ago

Solve the system using elimination.<br>3x – 3y = 24<br>2x + 2y = 4<br>The solution is |

LiRa [457]

Answer:

the value of x=5 and y = -3

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3 years ago

Which equation represents a line that passes through (2,-1/2<br>and has a slope of 3?

erma4kov [3.2K]

Answer:

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y + 0.5 = 3x - 6

y = 3x - 6.5

Step-by-step explanation:

8 0

3 years ago

Please help me!! im so close to finshing

gtnhenbr [62]

Answer:

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Step-by-step explanation:

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2 years ago

What is 29/12 as a decimal

ivolga24 [154]

Answer:

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Step-by-step explanation:

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3 years ago