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Veronika [31]
3 years ago
10

Calculate 8.93 x 104 times 4.2 x 106 by using scientific notation. Write answer in scientific notation. (round to the ten thousa

ndths place)
Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0
I think the answer is 4.13466144•10^5
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Michelle found the area of a circle as 78.5 〖in〗^2. She used 3.14 for π. What is the radius of the circle? Explain how you found
SCORPION-xisa [38]

Answer:

r = 5 inches

Step-by-step explanation:

Area of circle, A=78.5\ in^2

It is required to find the radius of the circle. The area of a circle is given by the formula :

A=\pi r^2

r is radius of the circle

r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{78.5}{3.14}} \\\\r=5\ \text{inch}

So, the radius of the circle is 5 inches.

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Direction can be indicated by negative and positive numbers.
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What is <br><br> 88x3-7+198-34x15+76-126=
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-105

Multiply first, then subtract, then add.

6 0
2 years ago
Read 2 more answers
Salazar is driving 70 miles per hour. At this rate, how long will it take for him to travel 840 miles?
Kisachek [45]

Answer:

12 hours

Step-by-step explanation:

Step 1:

70 : 1             Ratio

Step 2:

70 : 1 = 840 : x       Equation

Step 3:

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Step 4:

x = 840 ÷ 70      Divide

Answer:

12 hours

Hope This Helps :)

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3 years ago
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