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2 years ago

Help Im having a graded test and need help asap

Mathematics

1 answer:

Yakvenalex [24]2 years ago

7 0

Answer:

C = 3.14d

Step-by-step explanation:

From the table,

6.28÷2=3.14

9.42÷3=3.14

15.7÷5=3.14

31.4÷10=3.14

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“use synthetic method to find the quotient”

guapka [62]

Answer:

1) $2x^{4} -x^{3} +2x^{2} -4x+5+\frac{6}{x+2}$

2) $5x^{3}+15x^{2} +45x+151+\frac{474}{x-3}$

Step-by-step explanation:

7 0

2 years ago

Bob and mark talk about their families. Bob says he has 3 kids, the product of their ages is 72. He gives another clue: the sum

pychu [463]

I can only give possible combination of the ages. Had the sum of the ages been given, then the 3 specific numbers would have been derived.

We need to do prime factorization of 72.

72 ÷ 2 = 36
36 ÷ 2= 18
18 ÷ 2 = 9
9 ÷ 3 = 3
3 ÷ 1 = 1

1 x 2 x 2 x 2 x 3 x 3 = 72

Possible combinations:

1 x 8 x 9 = 72 1 + 8 + 9 = 18
1 x 4 x 18 = 72 1 + 4 + 18 = 23
2 x 4 x 9 = 72 2 + 4 + 9 = 15
3 x 4 x 6 = 72 3 + 4 + 6 = 13

3 0

2 years ago

Every 2 seconds, the distance the mouse travels ___by ___feet!

Mrac [35]

(answer)increases, 22

(explanation)the numbers show that they increase going from 22 to 44 to 66. subtract 22 from either number (44 or 66) and youll get 22. add 22 to each number (44 and 66) and youll get the numbers 44 and 66, meaning the mouses travel increases by 22 feet.

8 0

2 years ago

What is the exact volume of the cylinder?

AURORKA [14]

Answer:

1178.25cm^3

Step-by-step explanation:

Volume of a cylinder is given as V = Pi x r^2 xh

PI= 3.142

R = 5cm

H=15cm

So volume = 3.142 x 5cm x 5cm x 15cm

= 1178.25cm^3

4 0

2 years ago

Find the least squares regression equation using the school year (in number of years after 2000) for the input variable and the

Ad libitum [116K]

Answer-

The least squares regression equation using the school year (in number of years after 2000) for the input variable and the average cost (in thousands of dollars) for the output variable is "y=0.937x+12.765" .

Solution-

The independent variable / input variable= x = Number of years after 2000 ( = year-2000)

The dependent variable / output variable = y = Average cost in thousands of dollars

(The table has been attached herewith.)

To find the regression equation for a group of (x,y) points,

We have to calculate the slope and y-intercept, then we can put those values in the equation y = mx + c ( Slope - Intercept formula)

We know that,

$Slope=m=\frac{N\sum xy -\sum x\sum y}{N\sum x^{2}- (\sum x)^{2}}$