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3 years ago

37 less than the product of 15 and a number is 38

Mathematics

2 answers:

HACTEHA [7]3 years ago

5 0

So you would do what equals 38 by using 37 and 15

Helga [31]3 years ago

3 0

The equation is 15n-37=38 (n=5)

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What is the area of a sector with a central angle of 108 degrees and a diameter of 21.2 cm?

Rasek [7]

Answer:

$105.84\ cm^2$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is

$A=\pi r^{2}$

we have

$r=21.2/2=10.6\ cm$ ----> the radius is half the diameter

substitute

$A=\pi (10.6)^{2}$

$A=112.36\pi\ cm^2$

step 2

Find the area of a sector

Remember that

The area of the circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector with a central angle of 108 degrees

$\frac{112.36\pi}{360^o}=\frac{x}{108^o}\\\\x=112.36\pi(108)/360\\\\x=33.708\pi\ cm^2$

assume

$\pi=3.14$

substitute

$33.708(3.14)=105.84\ cm^2$

7 0

3 years ago

8. In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 28 vowels and 12 consonants,

sasho [114]

Answer:

The probability that you will choose a consonant and then a vowel is 0.21....

Step-by-step explanation:

Total no of tiles = 28 + 12 = 40

First you should choose a consonant = 12/40

Second you should choose a vowel = 28/40

So the probability you choose a consonant and then a vowel:

= 12/40 * 28/40

=336/1600

=0.21

So the probability that you will choose a consonant and then a vowel is 0.21....

5 0

3 years ago

Liam is constructing a square in which two of its vertices are points A and B. He has already used his straightedge and compass

AfilCa [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Can someone please help me!!

grandymaker [24]

Answer:

rotation 90° CW about the origin we defined

Step-by-step explanation:

The image has the same orientation (clockwise order of vertices) as the pre-image, so an even number of reflections is involved. These cannot be reflections across the x- or y-axes. The longest edge has an east-west orientation in the pre-image and a south-north orientation in the image. Any reflections must have a net effect of a rotation 90° CW.

Equivalently, the image is rotated 90° clockwise from the pre-image.

With a suitable choice of center of rotation, the image can be obtained with a single 90° CW rotation transformation.

If we define the lower left corner of the pre-image as having coordinates (-1, 2), then a 90° CW rotation about (0, 0) will yield the image.

3 0

3 years ago

I WILL GIVE BRAINLIEST+20 POINTS FOR THE CORRECT ANSWER!!!

faust18 [17]

Answer: The correct answer will be C. (Since the last comment got deleted smh)

3 0

3 years ago