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Greeley [361]
3 years ago
12

a window is shaped like a semicircle and has diameter of 2 feet which expression describes the perimeter in feet of the window

Mathematics
1 answer:
mart [117]3 years ago
3 0

Answer:

5.14 ft

Step-by-step explanation:

The perimeter of a circle is diameter X 3.14. since its half a circle, take the radius and multiply by 3.14. Since the radius is 1, the answer is pi itself. Then add 2 feet for the flat side of the semi-circle

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Find the value of abc-def<br> (I need work shown)
makkiz [27]

Answer:

x = 2.5 cm

Step-by-step explanation:

In Similarity triangles, the ratio of corresponding sides of the triangles are in same.

       \sf \dfrac{AC}{BC}=\dfrac{DF}{EF}\\\\\\\dfrac{x}{2}=\dfrac{11.5}{9.2}\\\\\\x = \dfrac{11.5}{9.2}*2\\\\x = 2.5 \ cm

4 0
2 years ago
Read 2 more answers
What is the range of f?
alisha [4.7K]

Answer:

B

Step-by-step explanation:

The range of a function f, would contain outputs that the function can output, or in other words, y-values.

Generally we use inequalities to describe functions that are continuous (not always the case) over a certain interval because using inequalities, doesn't just mean that the inequality has some outputs, but rather every value that satisfies the given inequality, should be an output.

For example if the function f(x) only outputs: 1, 2, 3, 4

It would be invalid to say the range is: 1\le f(x)\le 4

because saying this is the range, would imply that all values between 1 and 4 (including 1 and 4), are in the range. Meaning that 1.2, 1.3, 1.4, etc... are also in this range, but they're not since the function doesn't output these y-values.

Now looking onto the graph provided, we only want to focus on the outputs aka y-values.

Looking at the graph, we can see that the y-values are: 1, -4, 5, -3, and -3.

Notice that we actually have a duplicate y-value, and whenever we have this, we don't state it "twice" in the range, since the range is just telling us of y-values the function can output, and not how many times it occurs.

Thus the range is: -4, -3, 1, and 5

So "b" would be the correct option.

Note: "D" would be the correct choice for the domain of this function (like the range, except it deals with x-values)

6 0
1 year ago
Write the percent as a fraction in simplest form<br><br> 16.24%
Alja [10]
16 24/100 or 16 6/25
3 0
4 years ago
Val walks 2 3/5 miles each day. Bill runs 10 miles once every 4 days. In 4 days, who covers the greater distance?
stepan [7]
Val does because he covers 10.4 miles. Hope that helps.
8 0
4 years ago
Helen has $30 in a savings account that earns 10% interest, compounded annually.
Ivanshal [37]

Answer:

100+10= 110

110/100= 1.1

30 X 1.1^2= 36.3

$36.30

4 0
3 years ago
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