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OleMash [197]
3 years ago
8

Hellppp pleaseee Please be quick lol

Mathematics
1 answer:
Elza [17]3 years ago
7 0

Answer:

20(pi)

Step-by-step explanation:

• equation for the circumference of a circle= 2(pi)r

• You are given the diameter ( 20ft) but you need the radius (r) for the equation.

• divide 20 by 2 to get the radius since it is half of the diameter.

• 20/2=10 so c= 2(pi)(10)

• 2(10)=20

• plug in pi and your final answer is 20(pi)

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Find an equation for the line of best fit for the table below.
Luden [163]

Answer:

first or last depending how you are rounding the decimal

=> the best fit is the first one

Step-by-step explanation:

y = 2.55x - 2.15 when x = 5 => y = 10.6 approximately 11

y = 3.21x - 1.75 when x = 5 => y = 14.3 cannot equal or approximately  11

y = -2.15x + 2.55 when x = 5 => y = -8.2 cannot equal or approximately  11

y = 1.75x + 3.15 when x = 5 => y = 11.9 approximately 11

8 0
3 years ago
18 points!!!
morpeh [17]
<h2>Answer:</h2>

Number of apples is the prediction of the total weight an extrapolation is:

                                        18

<h2>Step-by-step explanation:</h2>

<u>Extrapolation--</u>

The extrapolation of a data point is an estimation of the value of the point based on the data that is provided to us.

In short it is a process of the estimation of the data which are beyond the original observation of the data  that is provided to us.

         Hence, here the extrapolated data is:

                              18

( Since 18 is beyond the range as the curve goes out of the area )

3 0
3 years ago
Read 2 more answers
Which expression is equivalent to (4+3i)^2+(6-I)^2
zhenek [66]

Answer:

\large\boxed{(4+3i)^2+(6-i)^2=42+12i}

Step-by-step explanation:

(4+3i)^2+(6-i)^2\qquad\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2\\\\=4^2+2(4)(3i)+(3i)^2+6^2-2(6)(i)+i^2\\\\=16+24i+9i^2+36-12i+i^2\qquad i=\sqrt{-1}\to i^2=-1\\\\=16+24i+9(-1)+36-12i+(-1)\\\\=16+24i-9+36-12i-1\qquad\text{combine like terms}\\\\=(16-9+36-1)+(24i-12i)\\\\=42+12i

8 0
4 years ago
My number has 8 tens the digit in the ones place is greater than the digit in the tens place
Andrew [12]

Your number can be none other than  89 .

8 0
3 years ago
Simplify: ( y−7 × y−3 )−1
arsen [322]
I believe the answer would be this:
-y^2 - 21
5 0
3 years ago
Read 2 more answers
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