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2 years ago

How can estimating be helpful

1 answer:

6 0

It helps you narrow down to a smaller answer for example there is pi, (3.14159265359) and there is more and more to that number. It is now estimated to 3.14 because it would be almost impossible to work with pi if it wasn't estimated

You might be interested in

Find the center and radius of (x + 9)^2 + (y + 6)^2 = 9.

VARVARA [1.3K]

You can do this by comparing your equation to the general form of equation of a circle

( x - a)^2 + (y - b)^2 = r^2 where (a,b) is the centre and r = radius:-
(x + 9)^2 (y + 6)^2 = 9

so (a,b) = (-9,-6) and r = 3

so the answer is B

4 0

2 years ago

Read 2 more answers

Dilate the figure by the scale factor. Then enter

Rzqust [24]

Answer:

there you go but im not sure . hope its helpful and good luck ;)

7 0

2 years ago

Is 7 - -4 positive or negative? positive negative

djverab [1.8K]

Answer:

Positive.

Step-by-step explanation:

When you see two negative signs directly next to each other (as shown in the given expression), it will become a positive sign:

7 - (-4) = 7 + 4 = 11

Positive is your answer.

* To be fair, even if there is only one negative sign, the answer will still be positive, however, I am assuming you are suggesting only the sign, and not the answer.

7 0

2 years ago

What point is a solution to y> 2x -1 A.(0,2) B.(4,2) C.(0,-10) D.(4,1)

Tom [10]

Well, we need to consider the x and y coordinates of the giben points, and check wether the y coordinate is greater than twice the x coordinate minus 1 (i.e. 2x-1):

For the first point, the x coordinate is 0. So, 2x-1 = -1. The y coordinate is 2, and 2>-1. So, this point is a solution.
For the second point, the x coordinate is 4. So, 2x-1 = 7. The y coordinate is 2, and 2<7. So, this point is not a solution.
For the third point, the x coordinate is 0. So, 2x-1 = -1. The y coordinate is -10, and -10<-1. So, this point is not a solution.
For the fourth point, the x coordinate is 4. So, 2x-1 = 7. The y coordinate is 1, and 1<7. So, this point is not a solution.

4 0

2 years ago

paul is diving and is 3.5 feet below sea level. he is descending at a rate of 0.5 feet per minute. if paul is now at 12 feet how

andrezito [222]

Answer:

He has been diving for 17 minutes

Step-by-step explanation:

* Lets explain how to solve the problem

- Paul is diving and is 3.5 feet below sea level

- He is descending at a rate of 0.5 feet per minute

- Paul is now at 12 feet

∵ His initial position is at 3.5 feet below the sea

∵ He is descending, that means he is moving down

∵ His final position is at 12

∴ He is descending a distance = 12 - 3.5 = 8.5 feet

∵ He is descending at a rate of 0.5 feet per minute

∵ He is descending 8.5 feet

∵ Time = distance ÷ rate

∴ His time of descending = 8.5 ÷ 0.5 = 17 minutes

* He has been diving for 17 minutes

5 0

2 years ago