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Eddi Din [679]
2 years ago
5

The perimeter of a semicircle is 81.212 yards. what is the semicircle's diameter?

Mathematics
1 answer:
adoni [48]2 years ago
4 0

\textit{circumference of a semicircle}\\\\ C=\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=81.212 \end{cases}\implies 81.212=\pi r\implies \cfrac{81.212}{\pi }=r \\\\\\ \stackrel{\textit{its diameter is}}{2r\implies 2\left( \cfrac{81.212}{\pi } \right)} ~~ \approx ~~ 51.7

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Help please and thank u
elena55 [62]

Answer:

It’s correct

Step-by-step explanation:

You‘ve got the first angle correct! You‘ve got the second angle correct. The third angle is also correct! angle.

Now the third angle has a way of Tricken ya! So heres a way to solve:

5 x 20= 100

100-40= 60

GOOD JOB! have a good night!

3 0
2 years ago
HIJK is a rectangle. HJ=x and IK=2x-7 Find the length of each diagonal​
laila [671]
The diagonals of a rectangle are congruent so set them equal to each other to get x = 2x - 7. isolate the variable (0 = x - 7 — x = 7) to get x = 7. the diagonals are seven.
3 0
3 years ago
Kelly needs to order lunch for the 6 people at a business meeting. Her menu choices are chicken salad for acost of $5 per person
Lady bird [3.3K]
Hello There!! (: 
I'm Here to help!
If we say Kelly orders 1 chicken salad, then it means she ordered 5 egg salads. If she ordered x chicken salads, then she'll have to order the rest, which is <span>(6−x)</span> egg salads. For first equation, let's set y to be the meal's price. It consist of the price of all chicken salads ordered and the price of all egg salads ordered: <span>y=5x+4(6−x)</span> Again, x represents number of chicken salads ordered, and y represents the meal's price. A second equation would come to limit the price to the money Kelly has: <span>y≤28
</span> Notice there are more constraints to add on the values (x cannot be negative, no such thing negative number of salads or fractional number of salads) so just keep that in mind. Now, since we know the price based on the number of chicken salads, we can say for what number of salads it matches the second restriction: <span><span><span>5x+4(6−x)≤28</span><span>5x+24−4x≤28</span><span>x≤28−24</span><span>x≤4

Does this help you?
I Sure hope so have a goodnight ! (:


</span></span></span>
6 0
3 years ago
The total number of items sold by each student who participated in the fundraiser is showing in the stem and leaf plot
kenny6666 [7]

The statement that is best supported by the data in the stem and leaf plot is D. The most common number of items sold is 15.

<h3>How to illustrate the information?</h3>

It should be noted that the stem and plot diagram is important to illustrate the data given.

Based on the information given, the most common number of items sold is 15.

In conclusion, the correct option is D.

Learn more about stem plot on:

brainly.com/question/23450543

#SPJ1

The total number of items sold by each student who participated in a fund-raiser is shown in the stem and leaf plot.

Which statement is best supported by the data in the stem and leaf plot?

The number of students who sold between 10 and 20 items is greater than the number of students who sold more then 40 items.

The number of students who sold more than 30 items is greater than the number of students who sold fewer than 30 items.

The most common number of items sold is 30.

The most common number of items sold is 15.

4 0
1 year ago
Screenshot of the question
tamaranim1 [39]

9514 1404 393

Answer:

  x = 1, x = 7

Step-by-step explanation:

You can see from the graph that the x-intercepts of f(x) are ...

  0 = f(-3)

  0 = f(3)

To find the corresponding values of x for f(x-4), we can solve ...

  0 = f(x -4)

  x -4 = -3   ⇒   x = 1

  x -4 = 3   ⇒   x = 7

The x-intercepts of the function after translation 4 units right are ...

  x = 1, x = 7

__

Your sketch will be the same curve moved 4 units to the right. (Add 4 to every x-value shown.)

3 0
2 years ago
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