MATHEMATICS MIDDLE SCHOOL

PICTURE INCLUDED HELLLPPP ASAP

Answers

Answer 1

Answer:

12/7 = 20/x

12x = 140

x = 140/12 = 35/3 = 11.67

so radius of the large cone = 11.67 ft

Volume = 1/3 πr^2h

= 1/3(3.14)(11.67)^2(20)

= 2850.88

Answer is B. 2850.70 ft^3

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Answers

1 times 104
2 times 52
4 times 26
8 times 13

How many minutes in 20% of an hour?

Answers

It would be 12 minutes.

Hope that helps :)

1 hour = 60 minutes

20% * 60 minutes = 12 minutes

The number of chips of different colors in Vicky's bag is shown below: 5 blue chips 11 pink chips 9 white chips. Vicky takes out a chip from the bag randomly without looking. She replaces the chip and then takes out another chip from the bag. What is the probability that Vicky takes out a blue chip in both draws? 5 over 25 multiplied by 5 over 25 equals 25 over 625, 5 over 25 plus 5 over 25 equals 10 over 25, 5 over 25 multiplied by 4 over 24 equals 20 over 600, 5 over 25 plus 4 over 24 equals 220 over 600.

Answers

The Answer to your question is A

Which is the same as 98.52 ÷ 10?

Answers

moving the decimal over one space to the left. (9.852)

Explanation:
If you multiply a decimal by 10 the decimal point will move one space to the right to make a bigger number. But, if you divide by 10, it will move one space to the left to make a smaller number. (÷ means left, x means right) The The rule is, however many 0’s you have after the 1, that is how many spaces you move your decimal point. For an example if I wanted to multiply or divide a decimal by 100, I would move the decimal point 2 spaces over instead of just one because the number 100 had two 0’s after the one.This rule will not work with numbers like 20, or 150, because they are not multiples of 10 like the other numbers. Numbers that will work are 10, 100, 1000, 10000, 100000 and so on.

Sorry this is so long, I just wanted to make sure you understand because I had trouble with it when I was learning it.

Use product rule to calculate the derivative of: 3
${x}^(2)$
.(2x-1)