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3 years ago

Pls help, for 10 points!

Mathematics

2 answers:

maw [93]3 years ago

8 0

Answer:

Step-by-step explanation:

in khan academy i put 9 because thats what the last person said here but it was wrong and the correct answer was 2 so its 2 for sure.

Masteriza [31]3 years ago

3 0

Answer:

I think 9 but dont quote me on it

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38 ×29 use rounding to estimate each product

nydimaria [60]

38 rounds to 40.
29 rounds to 30.
40 x 30 = 120.

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3 years ago

A red candle is 8 inches tall and burns at a rate of 7/10 inch per hour. a blue cans is 6 inches tall and burns at a rate of 1/5

Galina-37 [17]

Let t = number of hours

The first candle starts at 8 inches.
It burns at 7/10 inch per hour, so in t hours it burns (7/10)t inches.
After t hours, its length is 8 - (7/10)t

The second candle starts at 6 inches.
It burns at 1/5 inch per hour, so in t hours it burns (1/5)t inches.
After t hours, its length is 6 - (1/5)t

You want the lengths to be equal, so the equation is

8 - (7/10)t = 6 - (1/5)t

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3 years ago

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6 0

3 years ago

Read 2 more answers

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Misha Larkins [42]

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8 0

3 years ago

Which of the following is closest to the area of the shaded region below?

enot [183]

Answer:

C is the answer

Step-by-step explanation:

Find the area of the whole circle, r=12cm

=pie× radius sq

=3.14×12×12

=452.16cm sq

The are of the smaller circle, r=6cm

=same formula

=3.14×6×6

=113.04cm sq

Subtract them to find the area of the shaded region

452.16 - 113.04

=339.12

Closest is answer is 339 cm sq which is c

Hope it's helpful..... 

5 0

3 years ago