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Nady [450]
3 years ago
7

The circumference of a circle is 18.84 inches. what is the circle's radius

Mathematics
1 answer:
vivado [14]3 years ago
6 0

Answer:

Circumference : 18.84 inches

Radius: 3 inches

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What is the period of the graph of y = 5cos(6x – 1) + 3?<br> O A.
evablogger [386]

Step-by-step explanation:

The coefficent of the x variable is b.

The formula for the period is

\frac{2\pi}{ |b| }

Here, b is 6 so we have

\frac{2\pi}{ |6| }  =  \frac{\pi}{3}

So the period is pi/3, or 60 degrees

5 0
2 years ago
I really need help with this one. I’ll give u brainliest
zaharov [31]

Answer

20

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4 0
3 years ago
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If 5.7×10^k= 570,000, what is the value of k?
antiseptic1488 [7]

Answer:

5

Step-by-step explanation:

570000/5.7 is 100000

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6 0
3 years ago
If the length is 18 inches and the width is 24 inches what's the area
nekit [7.7K]

Answer:

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6 0
3 years ago
I'M OFFERING 20 POINTS-
Dafna11 [192]

Answer:

Third option is correct. Scale factor 3 ; enlargement.

Step-by-step explanation:

It is given that the figure A'B'C'D' is a dilation of figure ABCD.

We know that after dilation the corresponding sides of image and preimage are in the same proportion.

The image of AD is A'D'.

From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).

Distance formula is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

AD=\sqrt{(-1+1)^2+(-1-2)^2}=\sqrt{9}=3

A'D'=\sqrt{(-3+3)^2+(-3-6)^2}=\sqrt{81}=9

Scale factor is constant which represents the relation between image and preimage.

k=\frac{A'D'}{AD}

k=\frac{9}{3}

k=3

Therefore the scale factor is 3.

If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.

3 0
3 years ago
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