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2 years ago

the moon is about 240,000 miles from earth .What is the distance written as a whole number multiplied by a power of ten?

Mathematics

2 answers:

sergij07 [2.7K]2 years ago

8 0

$24\underbrace{0,000}_{\leftarrow4}\ miles=24\times10^4\ \ miles$

Mashutka [201]2 years ago

8 0

240,000

= 24,000 x 10^1
= 2,400 x 10^2
= 240 x 10^3
= 24 x 10^4
= 2.4 x 10^5

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Answer: Third option is correct.

Step-by-step explanation:

Since we have given that

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Sample size = 9

Standard deviation = 6

We need to find the upper and lower control limits.

so, Lower limit would be

$\bar{x}-3\dfrac{\sigma}{\sqrt{n}}\\\\=10-3\times \dfrac{6}{\sqrt{9}}\\\\=10-6\\\\=4$

Upper limit would be

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Hence, Third option is correct.

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2 years ago

Isaac keeps track of the miles per gallon his car gets per week. He has accumulated the following data:

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we know that

A <u>geometric sequence</u> is a sequence of numbers in which the ratio between consecutive terms is constant

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$a2=a1*1.02$

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$a3=a2*1.02$

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<u>the answer is</u>

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2 years ago

Read 2 more answers

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ratelena [41]

Answer:

The side length of the original square was 6 inches

Step-by-step explanation:

we know that

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$A=b^2$

where

b is the length side of the square

Let

x ---> the length of the original square

The area of the original square is

$A=x^{2}\ in^2$

The length of the smaller square is

$b=(x-3)\ in$

The area of the smaller square is

$A=(x-3)^2\ in^2$

The area of the smaller square is 1/4 the area of the original square

$(x-3)^2=\frac{1}{4} x^{2}$

solve for x

$x^2-6x+9=\frac{1}{4} x^{2}$

Multiply by 4 both sides

$4x^2-24x+36=x^{2}$

$4x^2-x^2-24x+36=0\\3x^2-24x+36=0$

Solve the quadratic equation by graphing

using a graphing tool

x=2, x=6

see the attached figure

The solution is x=6 in

Remember that the solution must be greater than 3 inches (because Stacey cuts 3 inches off of the length of the square and 3 inches off of the width)

therefore

The side length of the original square was 6 inches

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2 years ago

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Answer:

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2 years ago

Cassie has 20 bracelets. How many can she give to her sister if she wants to keep 11 or more bracelets? What repeats in the poss

Mademuasel [1]

If Cassie has 20 and wants to keep 11 then we would subtract 11 from 20.

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Hope this helps!

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2 years ago