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3 years ago

What is twice 2^30? write using exponents

Mathematics

1 answer:

8090 [49]3 years ago

7 0

$2(2^{30})=2^1*2^{30}=2^{1+30}=2^{31}$

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Valeria's office recycled a total of 44 kilograms of paper over 4 weeks. How many weeks will it take Valeria's office to recycle

diamong [38]

The answer would be 6 weeks.

First, you do 44 divided by 4 to get 11 kg per week. Now you divide 66 by 11 to get 6 weeks.

8 0

3 years ago

−76 = −0.8k <br><br> k =<br><br> What number represents k

Over [174]

Answer:

k= 95

Step-by-step explanation:

-76=-0.8k

-76/-0.8=k

95=k

k= 95

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3 years ago

How long should the wooden frame be (use 3.14 for pi)

scoundrel [369]

C=2πr
The C stands for circumference
the π is Pi (3.14)
and r is the radius (length of half a circle)

Since the sides are 10 ft you multiply that by 2 to get the length of both sides which gives you 20 feet.

Then to find the circle, since both are half circles. You can just do the normal circumference equation and you will end up with the same answer.

For example in this problem: this problem gives you the diameter but you need the radius of the circle. C=2(π)(1.5)

C=9.42 < this is the circumference of the circle.

Then you add the sides of the table which are 20 feet.

So the final answer is 29.42 feet.

6 0

3 years ago

State which theorem you can use to show that the quadrilateral is a parallelogram.

tekilochka [14]

Answer:

If one pair of opposite sides in a four sided figure are both opposite and parallel, then the figure is a parallelogram.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A-4/5 = 12 what is a and show the work

topjm [15]

Solving $a-\frac{4}{5}=12$ we get $a=\frac{64}{5}$

Step-by-step explanation:

We need to find the value of a. We are given:

$a-\frac{4}{5}=12$

Solving:

$a-\frac{4}{5}=12\\Add\,\,\frac{4}{5}\,\,on\,\,both\,\,sides:\\a-\frac{4}{5}+\frac{4}{5}=12+\frac{4}{5}\\a=12+\frac{4}{5}\\Taking\,\,LCM:\\a=\frac{12*5+4}{5}\\a=\frac{60+4}{5}\\a=\frac{64}{5}$

So, Solving $a-\frac{4}{5}=12$ we get $a=\frac{64}{5}$

Keywords: Solving Expressions

Learn more about Solving Expressions at:

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4 0

3 years ago