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sattari [20]
3 years ago
9

What is the estimated age of Earth?

Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0

Answer:

4.54 billion years

Step-by-step explanation:

Scientists use the layers of rock of the Earth's crust/core to estimate how old is the earth.

Serhud [2]3 years ago
6 0

Answer:

4.543 billion years i think, i apologize if im wrong

Step-by-step explanation:

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Select the proper order from least to greatest for 2⁄3 , 7⁄6 , 1⁄8 , 9⁄10 . A. 2⁄3 , 9⁄10 , 7⁄6 , 1⁄8 . B. 1⁄8 , 9⁄10 , 7⁄6 , 2⁄
Contact [7]
Know this?  Add apples to apples and oranges to oranges.
This problem becomes much easier if the fractions are converted to decimal fractions for comparison purposes:

<span>2⁄3 , 7⁄6 , 1⁄8 , 9⁄10
are approx equal to 0.67, 1.17, 0.125, 0.90

So, rearranging these numbers in increasing order, we get 

0.125, 0.67, 0.90, 1.17.

We could go back to the originals:   1/8, 2/3, 9/10, 7/6.</span>
5 0
3 years ago
Read 2 more answers
The hypotenuse of a triangle is 10 inches long. One of the legs is 6.5 inches long. what is the measurement of the missing leg?
Katarina [22]

Answer:

7.6

Step-by-step explanation:

a^2 + b^2 = c^2

6.5^2 + x^2 = 10^2

42.25 + x^2 = 100

isolate x by subtracting 42.25 on both sides

x^2 = 57.75

square root of 57.75 or 7.6

8 0
2 years ago
A farmer's land is separated into sections of size 2 1/5 acres. Suppose there are 2 2/9 such sections. How many acres of land do
Margarita [4]

Answer:

\frac{44}{29}

Step-by-step explanation:

The computation of the number of acres of land does the farmer owns is as follows:

Given that

the land of the farmer would be separated into size of 2 \frac{1}{5} acres

And, the sections would be 2 \frac{2}{9}

So,

The number of acres would be

= 2 \frac{1}{5} +  2 \frac{2}{9}\\\\= \frac{11}{5} + \frac{20}{29}

Now just multiply the denominator and numerator straight across

= \frac{11 \times 20 }{5 \times 29} \\\\= \frac{220}{145} \\\\= \frac{44}{29}

7 0
3 years ago
Please help with number 3
Pavlova-9 [17]
6 x 3 x 4 = 72 i believe

7 0
3 years ago
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Choose the correct simplification of the expression a to the 7th power times b to the 8th power all over a to the 4th power time
pantera1 [17]
The simplification of the expression will be as follows:
(a^7b^8)/(a^4b^4)
According to the rules of indices, when you divide numbers with the same base, it's the same as subtracting their powers. Hence we shall have:
(a^7b^8)/(a^4b^4)
=(a^(7-4))(b^(8-4))
=a^3b^4
the answer is a^3b^4
6 0
3 years ago
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