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cestrela7 [59]
2 years ago
10

Expand and evaluate the power. 2 to the power of 8 A. 16 B. 256 C. 512 D. 1024

Mathematics
1 answer:
Alinara [238K]2 years ago
5 0
2⁸

2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 256

An easy way to do this is to put these into parts.

(2 × 2)(2 × 2)(2 × 2)(2 × 2) = 

(4)(4)(4)(4)

(16)(16) = 256

~Hope I helped!~
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Find 4 consecutive even integers such that when three times the smallest of the intagers is added to twice the largest their sum
zhannawk [14.2K]
If x is the first of the integers then the statement is:

(x) , (x+2) , (x+4) , (x+6)

This means that the smallest is x and the largest is x + 6

so:
3(x) + 2(x+6) = 293
3x + 2x + 12 = 293
5x = 281
x = 56.2
This gives us a none integer (decimal)
What now?

Wait remember how x started as the lowest? what if x was the highest instead?

x, x-2, x-4, x-6
so:

3(x-6) + 2(x) = 293
5x = 315
x = 62.2

This is as close as have gotten to the answer
Cant seem to get an integer.
Maybe error in the question or some bad math on my part.


3 0
3 years ago
Solve system by elimination <br> -5x-10y=-20<br> 10x+10y=0
bekas [8.4K]

Answer:

(-4,4)

Step-by-step explanation:

-5x-10y=-20

10x+10y=0

divide both sides by 2

-5x-10y=-20

5x+5y=0

that makes

-5y=-20

divide both sides by -5

y=4

now substitute 4 for y

10x+10 x 4=0

multiply

10x+40=0

subtract

10x=-40

divide

x=-4

7 0
3 years ago
Read 2 more answers
Which graph best represents an exponential function?
stellarik [79]

Hey there! :)

Answer:

Choice B.

Step-by-step explanation:

We can eliminate each graph:

a). This is what is known as a step function. This is incorrect.

b). This is an exponential function because the graph is shaped like a geometric equation. This means that the rate of change is exponential. This is the correct choice.

c). This is an absolute value function. This is incorrect.

d). This is a graph of a polynomial. This does not represent an exponential function, which makes it incorrect.

3 0
3 years ago
K - 2L = L - M, THEN WHAY IS THE VALUE OF K - L + M?
Pachacha [2.7K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ K - 2L = L - M

Subtract L from both sides:

K - 2L - L = -M

Add M to both sides:

K - 2L - L + M = 0

Add 2L to both sides:

K - L + M = 2L <== this is the answer

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

4 0
3 years ago
Read 2 more answers
I can walk 2 miles in 1/3 of an hour. How long will it take me to get to the gas station that is 1/2 a mile away?
spin [16.1K]

Answer:

1/12 of an hour, or 5 minutes.

Step-by-step explanation:

Since ½ miles is ¼ of 2 miles, you would divide ⅓ by 4 to get 1/12 hours. That converted to minutes is 5 minutes.

6 0
3 years ago
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