The earths diameter through the equator is about 8000 miles. What is the earths estimated diameter written as a whole number multiplied by a power of ten

Answers

Answer 1
Answer: So,

To write 8000 miles in scientific notation, first find a natural number between 1 and 10.
8

Now, figure out how many decimal places we have to move to the left.
8000.0 --> 8.0000
Three

Now, write the number 8 multiplied by 10 to the third power.
8 * 10^3\ miles

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Plz Help really confused

Answers

Well delete my account if you want but you all are robots.

Which of the sails on the boats below has a greater area

A

B

Answers

Answer A
How to do it:
A 7x9=63 63/2=31.5
B 5x10=50 50/2=25

31.5>25

What is the solution set to the equation x2 - 4x + 5 = 50?{-9, - 5}
{-9, 5)
{-5, 9}
{5, 9}

Answers

Answer:

B. {-9, 5}

Step-by-step explanation:

First, subtract 50 from both sides: x^2-4x-45=0

Factor: (x+9)(x-5)=0

Zero Product Property: x+9=0 and x-5=0, x=-9 and x=5

So the solution set is B

Hope this helped!

I just need help understanding it so I can do the next one

Answers

6 and 5 are the factors. 4 is the quotient.

8 is the sum. 10 is the difference.

I can't read the rest of the paper because the words are cut off.

Hope the answers help!

Would -1.2 go into integers or rational numbers??

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Both. An integer is a rational number.
Nooo don't listen to the other guy! An integer is a whole number and it's opposite. -1.2 is not whole ther for it is an integer

Simplify negative 3 over 2 / 9 over 6

Answers

\mathrm{Simplify} -\frac{3}2/\frac{9}6.

Dividing by a fraction is the same as multiplying by its reciprocal. (flipped version)

-\frac{3}2/\frac{9}6=-\frac{3}2*(6)/(9)

6 and 9 are both divisible by 3, so we can simplify 6/9 = 2/3.

-\frac{3}2*\frac{2}3

We can multiply across right now, but we might as well cross cancel.
Look at the numbers diagonal from one another...-3 and 3 are both divisible by 3, so we can change them to -1 and 1...2 and 2 are both divisible by 2, so we can change them to 1 and 1...

-\frac{1}1*\frac{1}1

Any fraction over 1 can just be expressed as a whole number.

-1*1

Our final answer...-\frac{3}2/\frac{9}6=\boxed{-1}

If you were to multiply across, (maybe you don't like cross cancelling, idk?) you'd get the same answer, of course.

-\frac{3}2*\frac{2}3=-\frac{6}6=\boxed{-1}

Answer:

−1

Step-by-step explanation:

I took the test and got it correct