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bazaltina [42]
2 years ago
9

What is the area of a circle if the circumference is 31.4 inches ?

Mathematics
1 answer:
Gnesinka [82]2 years ago
5 0

Answer:

A≈78.46in²

Step-by-step explanation:

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Elevator is on the 16th floor. It goes up 12 floors, down 7 floors, up 3 floors, and then down 5
seropon [69]

Answer:

The elevator stops on the 19th floor.

Step-by-step explanation:

On the 16th floor, goes up 12 floors:

16 + 12 = 28

On the 28th floor, goes down 7 floors:

28 - 7 = 21

On the 21st floor, does up 3 floors:

21 + 3 = 24

On the 24th floor, goes down 5 floors:

24 - 5 = 19

6 0
3 years ago
Graph the function by first finding its zeroes. <br> y = x3- 2x2 + x
CaHeK987 [17]

Answer:

The zeros of the function are;

x = 0 and x = 1

Step-by-step explanation:

The zeroes of the function simply imply that we find the values of x for which the corresponding value of y is 0.

We let y be 0 in the given equation;

y = x^3 - 2x^2 + x

x^3 - 2x^2 + x = 0

We factor out x since x appears in each term on the Left Hand Side;

x ( x^2 - 2x + 1) = 0

This implies that either;

x = 0 or

x^2 - 2x + 1 = 0

We can factorize the equation on the Left Hand Side by determining two numbers whose product is 1 and whose sum is -2. The two numbers by trial and error are found to be -1 and -1. We then replace the middle term by these two numbers;

x^2 -x -x +1 = 0

x(x-1) -1(x-1) = 0

(x-1)(x-1) = 0

x-1 = 0

x = 1

Therefore, the zeros of the function are;

x = 0 and x = 1

The graph of the function is as shown in the attachment below;

8 0
2 years ago
Is the ordered pair (-2,-2) a solution to th fiction y= 3x-8
Tema [17]

Answer:-24

Step-by-step explanation:

You multiply your numbers without the - or the +

You check ehich number is bigger and you use it symbol for the answer

Example: 3x8= 24

-8 is bigger than 3 so you use it symbol

= -24

7 0
3 years ago
To multiply a decimal number by 1,000, move the decimal point _____. three places to the left three places to the right four pla
melamori03 [73]
The number 1000 has three zeros which will move the decimal three times. But what in direction?

Well, when we multiply a number by 10, we move the decimal one place to the left.

So, the answer is three places to the left.
6 0
2 years ago
Read 2 more answers
Two twins are running away from their mother in opposite directions one at a speed of 10 feet per second and the other at a spee
Vanyuwa [196]

Answer:

if one run a speed of 10 feet per second and the other 8 feet per second I think it is 18 feet apart they will be because one run 10 feet and the other one run 8 so 10+8=18 feet apart from each other

7 0
3 years ago
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