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3 years ago

How do you write the number 7 × 10-2 in standard form? a. 7 b. 0.0007 c. 700 d. 0.07

1 answer:

4 0

D. 0.07. the negative exponent which is two indicates the number of zeros in the standard form. and the 7 indicates the first number in the standard form

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Will give brainiest algebra 2

mars1129 [50]

The sum of squares of numbers is: 13

Step-by-step explanation:

Let x and y be two numbers

Then,

Difference of the squares of the numbers will be:

$x^2-y^2$

Product will be:

$xy$

Given identity is:

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Given values are:

Difference of the squares of the numbers= $x^2-y^2=5$

Product of numbers = xy = 6

Putting the values in the identity

$(x^2+y^2)^2=(5)^2+[2(6)]^2\\=25+(12)^2\\=25+144\\=169$

As we have to only find x^2+y^2

Taking square root on both sides

$\sqrt{(x^2+y^2)^2}=\sqrt{169}\\x^2+y^2=13$

The sum of squares of numbers is: 13

Keywords: Identities

Learn more about identities at:

#LearnwithBrainly

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3 years ago

What is 8.33333 as a fraction?

beks73 [17]

$8 \frac{1}{3}$

I only know this because I remember the common fractions, and 1/3 is .3333 repeating.

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3 years ago

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A machine adds metal bands called ferrules and erasers to one end of a pencil. It takes the machine 2.5 hours to add ferrules an

andreev551 [17]

Answer:

Step-by-step explanation:

Convert 2.5 to minutes = 150 minutes. Then divide 4200/150 which gives you 28 per minute

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3 years ago

What's the best estimate for 1/3?

Arisa [49]

1/3 as a decimal is roughly .333 repeating

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3 years ago

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23.160 divided by 10

Serjik [45]

Answer:

the answer is 2.316

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2 years ago

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