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2 years ago

What is the approximate area of a circle with a radius of 30

Mathematics

1 answer:

amid [387]2 years ago

8 0

Answer:

Step-by-step explanation:

Area of circle = π r²

r = 30

30² = 900

π = 3.14 or ≈ 3

A ≈ 900 × 3

A ≈ 2700

so C at 2830 is closest to the answer

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HELP TIMED BRAINLY POINTS

kozerog [31]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

Find the equation of the line passing through the points (3,7) and (-2,5)

r-ruslan [8.4K]

Answer:

The equation of the line passing through the points (3,7) and (-2,5) is y=⅖x+29/5

Step-by-step explanation:

Greetings !

$first \: find \: the \: slope \: m \\ m = \frac{(Y₂-Y₁)}{(X₂-X₁)} ..substitute \: vlues \\ m = \frac{(5 - 7)}{( - 2 - 3)} = \frac{ - 2}{ - 5} = \frac{2}{5} \\ y = mx + b \: to \: find \: equation \: of \: aline \\ between \: two \: poins and \: use \: \\ one \: of \: the \: two \: points \: lets \: take( - 2.5) \\ y = mx + b \\ 5 = \frac{ - 2}{5} ( - 2) + b \\ 5 = \frac{ - 4}{5} + b \\ 5 + { - 4}^{5} = b \\ \frac{25 + 4}{5} = b \\ b = \frac{29}{5} \\ finally \: equation \: of \: the \: line \: will \: be \\ y = \frac{2}{5} x + \frac{29}{5}$

7 0

1 year ago

For her birthday party, Dina wants to invite at least 8 guests but not more than 12 guests. How many guests might she have? Name

natulia [17]

This can be represented by the inequality 8 $\leq$ x $\leq$ 12
As Dina wants at least 8, and no more than 12, that means 8, 9, 10,11, and 12, are applicable

4 0

3 years ago

What is the mean of this set of data?<br> 1, 5, 5, 7, 3, 3,4

tatuchka [14]

Answer:

Its 4

Step-by-step explanation:

7 0

3 years ago

Please help I need an answer fast!!

klio [65]

I = prt calculates the amount of simple interest. I represents the interest, p the principle, r and the percentage rate and t the amount of time.
We know that t = 6 years, p = 7000, and I = 1890.

So 1890 = 7000r6
1890 = 42000r

Divide both sides by 42000
1890 / 42000 = 42000r / 42000
r = 0.045.

So the percentage rate is 4.5%

Hope this helps! :D

5 0

3 years ago