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3 years ago

Find the area of the semicircle need help asapp

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

4 0

Answer:

2 pi

Step-by-step explanation:

The radius is 2

The area of a circle is

A = pi r^2

We have 1/2 of a circle so

1/2 A = 1/2 pi r^2

=1/2 pi ( 2)^2

=1/2 pi *4

= 2 pi

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Help pleaseeee, I don't understand

miv72 [106K]

Answer:

Step-by-step explanation:

2x+4-1

3 0

3 years ago

Graph the system of equations on your graph paper to answer the question. {y=x−4y=−x+6 What is the solution for this system of e

arsen [322]

Answer:

(5,1)

Step-by-step explanation:

Given :

$y=x-4\\y=-x+6$

Solution :

Equation 1 : y=x-4

Equation 2 : y = -x+6

We will use substitution method

Putting the value of y from equation 1 in equation 2

⇒ $x-4 = -x+6$

⇒ $x+x= 6+4$

⇒ $2x=10$

⇒ $x=\frac{10}{2}$

⇒ $x=5$

Now substituting value of x in equation 1 to get value of y

⇒ $y=x-4$

⇒ $y=5-4$

⇒ $y=1$

Thus the solution of given system of equations is (5,1)

We have also solved it by graphing the equations

You can refer the attached figure.

4 0

3 years ago

Read 2 more answers

Can someone helpppp

Dmitry [639]

Yes, I can help what would you like me to do

5 0

3 years ago

Which value is a perfect square? 12 24 49 63

marysya [2.9K]

Answer: 49 is a perfect square.

Step-by-step explanation: We say that 49 is a perfect square because it is the product of an integer multiplied by itself, 7×7. If we had a square with an area of 50, this wouldn't be a perfect square because no integer, multiplied by itself, will give a product of 50.

6 0

3 years ago

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Compare the average score of a student at the beginning of a month and at the end of that month, if at first, it increased by 40

Leno4ka [110]

Answer:

122.5

Step-by-step explanation:

Let the student normal score be 100

In the beginning score increased by 40%

Hence score at the beginning =100+40 = 140%

Now before end score decreased by 25%