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Sergeeva-Olga [200]
2 years ago
6

What is the value of the expression 4/2^-2? a. ½ b. 1 c. 8 d. 16

Mathematics
1 answer:
Alexus [3.1K]2 years ago
8 0
2^{-2} = \frac{1}{2^{2} } =  \frac{1}{4}

\frac{4}{2^{-2} } = \frac{4}{ \frac{1}{4} } = 4 ÷ \frac{1}{4} = 4*4= 16

The answer is D. 16
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Help please find the x
kobusy [5.1K]

Step-by-step explanation:

a)

Two of the three interior angles are known. Both are equal to 55°. This can be seen by looking closely at the picture. To find the third angle subtract the other two from 360°

360\textdegree-55\textdegree-55\textdegree=x

b)

Do the same thing only afterward subtract the third angle from 180 to find the supplementary angle

360\textdegree-40\textdegree-28\textdegree=ans\textdegree\\180\textdegree-ans\textdegree=x

4 0
2 years ago
there are four times as many cows as horses on a farm. there are twice as many horses as pigs on the farm. which list shows the
Gnesinka [82]
Well for what  I understood...

Let's say... 

10 Pigs in total... Horses is 2 times more than pigs so 
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The numbers are just examples of what I sort of understood.
3 0
2 years ago
Combine like terms to create an equivalent expression
klasskru [66]

Answer:

1/6a-1/6

Step-by-step explanation:

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Then since -1/6 doesn't have a like term, it stays the same.

7 0
2 years ago
The answer ASAP I don’t understand this at all
RSB [31]

Answer:

T = 530N + 250

Step-by-step explanation:

For the first plan, Heather will deposit $250 and then save $135 per month.

So, that is 250 + (135 x N) where N is the number of months she saves the $135.

So if it is for 3months,

We will have:

t¹ = 135N + 250

= 250 + (135 x 3)

= 250 + 405

= $655

For the second plan, there is no initial deposit, but she will save $395 per month.

That is 395 x N

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For 3months, we have 395 x 3 = $1185

Therefore the total for both plans in 3months = 655 + 1185 = $1840

Equation relating T to N

T = t¹ + t²

T = (135N + 250) + 395N

T = 135N + 250 + 395N

T = 530N + 250

5 0
3 years ago
When you have the number 81 as your median and you have to find the missing number out of the following 82,87,77,70,80,88
Natali5045456 [20]
Uh, so, you're median is 81 already.

Since the middle two numbers are 82 and 80, you have to add them together and then divide by 2. 

However, if you're trying to add a number in, adding 81 as it is would work as well.

Hope this helps!
6 0
3 years ago
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