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Citrus2011 [14]
3 years ago
15

Find the area of the shaded region. Round to the nearest hundredth when necessary.

Mathematics
1 answer:
dusya [7]3 years ago
3 0
Answer: 423.11 m^2


Step by step explanation:

Area of a circle formula pi*r^2

First solve the area of the big circle

3.14*21^2=1384.74 m^2

Now find the are of the smaller circle

r=21-3.5=17.5
3.14*(17.5)^2=961.63 m^2

Now we can minus the small area off the big area to get the shaded area.

1384.74-961.63=423.11 m^2

So the area of the shaded region is 423.11 m^2
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qwelly [4]

Answer:

what is correct or not

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2 years ago
Negative 2X squared plus 3X +2 equals zero
Aloiza [94]

Answer:x=-2/7

Step-by-step explanation:-2x squared = 4x+3x+2=0

7x+2=0

7x=-2

Divide both sides by 7 x= -2/7

7 0
3 years ago
Which graph represent f of x equals square root of the quantity x plus 2 end quantity minus 3? The graph shows a curve with an e
Svetach [21]

The graph of the function:

f(x) = \sqrt{x + 2} - 3

Is the last graph (bottom graph of the second image).  

<h3>Which graph represents the given function?</h3>

Here we have the function:

f(x) = \sqrt{x + 2} - 3

Remember that the argument of a square root must be zero or larger, then the minimum of the domain is the value of x such that:

x + 2 = 0

x = -2

Then the function starts at:

f(-2) = \sqrt{-2 + 2} - 3 = -3

Then the graph should start at (-3, 2).

We can also identify another point by evaluating in x = 2.

f(2) = \sqrt{2 + 2} - 3 =2 - 3 = -1

So the function also passes through (2, - 1).

Notice that the only graph that contains these two points is the last graph (the bottom graph on the second image), so that is the correct option.

If you want to learn more about square roots:

brainly.com/question/98314

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7 0
2 years ago
What’s the answer?????????
malfutka [58]

Answer:

7 1/24

Step-by-step explanation:

First, you have to get the fractions to have the same denominator. So, you take 2/3 and 3/8 and find the smallest number by multiplying for the denominator. That number is 24 because 3 times 8 is 24 and 8 times 3 is 24.

Then, you multiply both the denominator and the numerator by the number that you got for the fractions. 2 * 8 = 16   3 * 8 = 24.    3 * 3 = 9   8 * 3 = 24. So, that gives you 16/24 and 9/24. Now since they have the same denominator you can add them.

This gives you 25/24 which equals 1 1/24.

Next, you can add the whole numbers. That is 6.

Lastly, take your fraction answer and your whole number answer and you get 7 1/24.

I hope this helps! =)

3 0
3 years ago
Which statement is not used to prove that triangle ABC is similar to triangle ADC?
yarga [219]

Answer:

what are the statements we pick from?

Step-by-step explanation:

most likely look out for angles and lengths that go against the established ratio

6 0
2 years ago
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