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Snezhnost [94]
3 years ago
14

If radius of circle is 7cm. find its diameter with formula.​

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

the radius is 3.5 cm

the Diameter is 7 cm

Margarita [4]3 years ago
4 0
The answer would be 14 cm.

The formula to find diameter is d=2r
D= diameter
R= radius
The 2 is there because you have half of the diameter so just times by 2 to get the diameter.
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Find the slope of the line that passes through (10,8) and (1,9).
lesya [120]

Answer:

-\frac{1}{9}

Step-by-step explanation:

between (1, 9) and (10, 8), the x moves by 9 and y moves by -1

The slope is equal to: \frac{\Delta y}{\Delta x} = \frac{-1}{9} = -\frac{1}{9}

3 0
2 years ago
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The quotient of nine times a number and seven ?
IRISSAK [1]
9/7n is the answer i am pretty sure
7 0
3 years ago
I don’t understand this can someone please give me and example on how to do it please?
olga55 [171]
For the first one,

you multiply 5x and -5 to get -25.

Then you move the constant to the right and change the sign to get 3x= -21 +25.

Calculate the sum of -21+25 to get 4.

Divide both sides of the equation by 3 to get x=4/3.

So then your final answer is x=4
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3


For the second one,

Distribute 7 through the parentheses to get 14x + 14+8=120

The you add 14+8 to get 22. Your equation should be 14x+22=120

Move the constant to the right side and change its sign to get 14x=120-22

Subtract 120-22 to get 98. Now your equation should be 14x=98

Divide both sides of the equation by 14 to get x=7.

Your finial answer for the second one should be x=7.
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I hope this made sense.
5 0
2 years ago
For the last 4.5 hours, the temperature has decreased at a rate of 2.8 degrees per hour. Which best represents the overall chang
Elden [556K]

Just divide 4.5 by 2.8 and you'll get the rate of decreasing degree per hour.

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2 years ago
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The circle graph above shows the results of a survey of 660 students in a school. How many students participate in sports?
sleet_krkn [62]

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