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3 years ago

Using scientific notation, what is the solution to (2.82 * 104) * (3.1 * 103)?

Mathematics

1 answer:

MArishka [77]3 years ago

6 0

Answer: Choice A) 8.742 * 10^7

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Work Shown:

$(a * 10^b) \times (c * 10^d) = a*c*10^{b+d}\\\\(2.82 * 10^4) \times (3.1 * 10^3) = 2.82*3.1*10^{4+3}\\\\(2.82 * 10^4) \times (3.1 * 10^3) = 8.742*10^{7}\\\\$

Extra info:

$8.742 * 10^7 = 87,420,000$

which is a little over 87.4 million

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A square patio has an area of 50 square feet. To the nearest tenth of a foot, what is the length of the patio? A. 7.1 ft B. 12.5

Ivanshal [37]

The answer is B because 50 divided by 4 is 12.5

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3 years ago

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A sauce recipe uses 4 cans of tomatoes in every 2 1/2 quarts. How many cans of tomatoes are used in each quart of the sauce? Ent

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Use implicit differentiation to find the negative slope of a tangent to the circle x^2+y^2=16 at x=-2

SVETLANKA909090 [29]

Answer:

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Step-by-step explanation:

Differentiating implicitly with respect to x

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using x = - 2, y = - 2 $\sqrt{3}$ , then

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3 years ago

I need an Answer Immediately pls!!!!!!!!!

Salsk061 [2.6K]

Answer:

2,033-993.50= 1039.50/74.25= 14

Step-by-step explanation:

not sure the exact equation but p would be 14 and you'd do something similar to that shown above

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3 years ago

Keith won a cash prize in an art competition. He gave his mother 2/5 of the money he won. Of the remainder, 1/4 was given to his

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Answer:

300 dollars

Step-by-step explanation:

Let the original amount = x

x - 2/5x was what his mother's share looked.

5/5 x - 2/5 x

3/5x is what is left.

3/5 x - 1/4 * 3/5 x - 2/3x * 3/5 = his sister's share and his brothers

3/5x - 1/4*3/5 x - 2/3 * 3/5 = 15

3/5x * (1 - 1/4 - 2/3) = 15

3/5 x 5/60 = 15

15 / 300 * x = 15

1/20 x = 15

x = 15 * 20

x = 300

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3 years ago