3 years ago

Which equation would help determine the cost of 2 folders?

Mathematics

1 answer:

mihalych1998 [28]3 years ago

7 0

The answer to your question would be b.

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The circumference of a circle

Dmitry_Shevchenko [17]

Use the formula C = pi * d

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3 years ago

If 2^(x+3) - 2x = k(2^x) what is the value of k

svlad2 [7]

Answer:

$\large\boxed{C)\ 7}$

Step-by-step explanation:

Use:

$a^n\cdot a^m=a^{n+m}$

$2^{x+3}-2^x=2^x\cdot2^3-2^x=8\cdot2^x-2^x=(8-1)\cdot2^x=7\cdot2^x\\\\2^{x+3}-2^x=k(2^x)\\\\7\cdot2^x=k(2^x)\Rightarrow k=7$

$8\cdot2^x-2^x=8\cdot2^x-1\cdot2^x=(8-1)(2^x)=7\cdot2^x\\\\\text{distributive property:}\ a(b-c)=ab-ac$

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3 years ago

PLEASE HELPPP I WILL MARK BRAINLIEST

Rina8888 [55]

Answer: they are different the difference is 28

Step-by-step explanation:

6 0

3 years ago

What is the slope of the line passing through points A(−18,24) and B(16,−8)?

Anastaziya [24]

y2-y1 -8-24 -32 -1*2*2*2*4 16
M= --------- = ----------- = ------ = --------------- = ------
x2-x1 16-(-18) -2 -1*2 1

6 0

3 years ago

Y=2/3x-2(-3,4)

kodGreya [7K]

y = (2/3)x + 6

because the slope stays the same because it is parallel and to get the y intercept you plug in -3 for x into the equation (2/3)x +? =4 and ?=6 so that gives you the equation y = (2/3)x + 6

8 0

3 years ago