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Misha Larkins [42]
2 years ago
15

When an 18-sided, regular polygon is rotated about its center, at which angle of rotation will the image of the polygon coincide

with the preimage? A. 10° B. 18° C. 24° D. 20°
Mathematics
1 answer:
alekssr [168]2 years ago
8 0

Answer:

D. 20

Step-by-step explanation:

Its correct.

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Simplify 4(b-6)+19 ?
Digiron [165]

Answer:

4b -5

Step-by-step explanation:

Perform the indicated multiplication first:  4b - 24 + 19.  Next, combine like terms, obtaining 4b -5 (answer)

4 0
3 years ago
Write the percent as a fraction and as a decimal.<br> 372%<br> What is the fraction equivalent?
Ratling [72]

Answer:

fraction form- 372/100

decimal- 3.72

Step-by-step explanation:

7 0
3 years ago
Please find the perpendicular line slope equation please! Thanks!
lana66690 [7]

We need to convert this equation to slope-intercept form first.

We can do that by solving for y.

x - 5y = 15

<em><u>Add 5y to both sides.</u></em>

x = 5y + 15

<em><u>Subtract 15 from both sides.</u></em>

x - 15 = 5y

<em><u>Divide both sides by 5.</u></em>

y = 1/5x - 3

We now know the slope is 1/5.

The slope of the line perpendicular to the line with a slope of 1/5 is -5.

The slope of a perpendicular line is the negative reciprocal of the original slope.

Using a graphing calculator, we know the y-intercept of the line that is perpendicular to the original line must have a y-intercept of -6 to run through the points (-2, 5).

The equation of the new line is y = -5x - 6.


5 0
3 years ago
Read 2 more answers
When jerry drives 204 miles on the highway, his car uses 6 gallons of gasoline . How much gasoline would his car use if he drive
Luba_88 [7]

Answer:

15

Step-by-step explanation:

6 0
3 years ago
Your little brother just learned how to flip and catch a coin. He believes that by catching the coin in mid-air, he can influenc
coldgirl [10]
<h2>Answer explanation:</h2>

If a coin is fair then it has two faces , one is heads and the another is tails.

The probability getting any favorable outcomes is given by the formula :-

\dfrac{\text{Number of favorable outcomes}}{\text{Total outcomes}}

So the factor effecting probability is just the number of  favorable outcomes and total outcomes.

If a coin is tossed then the probability of getting heads will be :-

P(H)=\dfrac{1}{2}=0.5=50\%

To get heads always this should be 1 , which can be happen if number of  favorable outcomes is equal to total outcomes.

i.e. Number of heads = Number of total outcomes, this means coin should be biased.

Catching the coin in mid-air can never be a factor for this.

Therefore, the little brother's theory is false.

8 0
3 years ago
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