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3 years ago

14

The point (3, 0) lies on a circle with the center at the origin. What is the area of the circle to the nearest hundredth? Use 3.

14 for π.
The area of the circle is about ___ square units.

NEED THIS ASAP

1 answer:

77julia77 [94]3 years ago

4 0

Answer:

A=28.27units2

Step-by-step explanation:

im not positive on this but you can try

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five percent of a batch of fuel was found faullty if 27 fuses were faulty how many were inspected the price of internet service

LenKa [72]

There are 540 fuses in total and the original price of the internet is $55.91

<h3>How to work with percentages?</h3>

a) We know that 5% of the fuses are faulty, and there are 27 faulty fusses, then we can write:

5% = 27

100% = x

We want to find x, to do that, we can write:

x = 27*(100%/5%) = 27*20 = 540

There are 540 fuses in total.

b) Now we know that the original price is P, and when we decrease it by 7%, then new price is $52.00

Then we can write:

$52.00 = P*(1 - 7%/100%)

$52.00 = P*(0.93)

$52.00/0.93 = P = $55.91

The original price is $55.91

If you want to learn more about percentages:

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2 years ago

After a dilation with a center of (0, 0), a point was mapped as (4, –6) → (12, y). A student determined y to be –2. Evaluate the

SpyIntel [72]

Answer:

B. The student incorrectly calculated the scale factor to be –2

Step-by-step explanation:

Given that :

After a dilation with a center of (0, 0), a point was mapped as (4, –6) → (12, y).

The student determined y to be -2

If a figure dilated with a center of (0, 0) and scale factor k, then

(x , y) → (kx , ky)

(4, -6) → (12, y)

$k = \dfrac{x'}{x}$

$k = \dfrac{12}{4}$

k = 3

Thus; the scale factor is 3

Now; the y-coordinate can now be calculated as;

ky = (3 × -6)

ky = -18

Therefore; the value of y = -18 and the student incorrectly calculated the scale factor to be -2.

3 0

3 years ago

Solve for the angle indicated with the question mark.<br> 92°<br> 71°

nika2105 [10]

Answer:

try 35.3

Step-by-step explanation:

justt tryit

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3 years ago

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djyliett [7]

Answer:

$\frac{2}{3}$

Step-by-step explanation:

If you divide $\frac{8}{12}$ by 4 (both numerator and denominator)

You get $\frac{2}{3}$ which is equivalent to the given ration

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3 years ago

Line AB contains points A (0, 1) and B (1, 5). The slope of line AB is

hammer [34]

Slope = 1-5/0-1 = 4
the answer is 4

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