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2 years ago

Find the area of the semicircle.

Mathematics

2 answers:

Oliga [24]2 years ago

8 0

Assuming 6 is the radius, we can use the formula to find the area of a whole circle, which is πr2

So it’s π6^2

Which is 113.1. BUT it’s a semi circle, so just divide by 2. So the answer should be 56.52 units squared.

dimaraw [331]2 years ago

3 0

assuming 6 is the radius, we can use the formula to find the area of a whole circle, which is πr2

So it’s π6^2

Which is 113.1. BUT it’s a semi circle, so just divide by 2. So the answer should be 56.52 units squared.

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Use a number line to compare the numbers. Which shows the correct symbol to compare the numbers? 1.2 1 1/5

Leno4ka [110]

For this case we must compare the following expressions:

$1.2\\1 \frac {1} {5}$

We convert the mixed number to a fraction:

$1 \frac {1} {5} = \frac {5 * 1 + 1} {5} = \frac {5 + 1} {5} = \frac {6} {5} = 1.2$

So, we have to compare:

1.2 and 1.2

It is observed that the expressions are equal, so we have the sign of equality "=":

$1.2 = 1.2$

Answer:

$1.2 = 1.2$

6 0

3 years ago

Please help me, I have a test tomorrow! Attachment bellow:

katrin2010 [14]

Answer:

1. A 2. B

Step-by-step explanation:

Whatever happens to x must also happen to y.

For the first question, x is doubled, which means that the value of y is also doubled.

For the second question, if the value of x triples, then the value of y triples as well, which means that it would be multiplied by 3.

We can check to see if these two answers are true by inputting values into the equations.

For the first equation, let's use the example x = 2

y = 5(2)

y = 10

If the value if x doubled, it would become x = 4

y = 5(4)

y = 20

As you can see, when the value of x doubled from 2 to 4, the value of y also doubled from 10 to 20.

You can do something similar for the other equation.

8 0

3 years ago

Select the statements that are true for the graph of y = −(x−0.5)^2+9

hram777 [196]

The graph has a minimum.

8 0

3 years ago

Read 2 more answers

Convert 2435m to km and express the result as mixed fraction

Juli2301 [7.4K]

Step-by-step explanation:

m to km

divide by 1000

2435m = 2.435km

6 0

4 years ago

Forty-five thousand dollars was raised in the charity drive. This was nine tenths of the goal. A. The goal of the charity drive

RideAnS [48]

Answer:

Goal = x

45000 = 9/10 * x

x = 45000 * 10/9 = 50000

Step-by-step explanation:

You may find something useful on my you tube channel "Sciency Sergei". You may also suggest a topic to discuss or problems to solve.

4 0

2 years ago