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adell [148]
3 years ago
5

Find the area of the semicircle .

Mathematics
1 answer:
bija089 [108]3 years ago
7 0
Area of semicircle formula :
1/2 x pi x radius x radius

so ,
1/2 x pi x 6 x 6
= 56.5486678....
≈ 56.55 ( 2 decimal place )
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Please help me with this problem...
sesenic [268]
.03*.03=.009 .009*.03=.000027 so the answer is .000027
6 0
3 years ago
What is the answer to x2+4x +3 =0?
adell [148]
(x+1) (x+3)
the zeroes of the function are negative 1 and negative 3
8 0
3 years ago
The sine of angle θ is 0.3.<br><br> What is cos(θ)?
Sergio [31]

The answer:

\sqrt{9}1 /10

Explanation to your question:

Since the sin of theta is 0.3, we can reasonably deduct that the opposite side to theta has a ration of 3 to 10 to that of the hypotenuse. Thus, the adjacent side to theta, using the pythagorean theorem, will be root91. Therefore, since the cosine of theta is the adjacent/hypotenuse, we get root 91/10

6 0
2 years ago
The length of a rectangle is 5 inches shorter than double its width. The perimeter of the rectangle is 192 inches. Write a two-s
alukav5142 [94]

Answer:

Step-by-step explanation:

Givens

Let the width = x

Let the length = x + 5

Equation

2w + 2W = P

Solution

2x + 2(x + 5) = 192                  Remove the brackets    <=== Answer

2x + 2x + 10 = 192                  Combine like terms

4x + 10 = 192                          Subtract 10 from both sides

4x = 192 - 10                        

4x = 182                                 Divide by 4

4x/4 = 182/4

x = 45.5

8 0
2 years ago
The graph of which function has an axis of symmetry at x=3?​
iragen [17]

Answer:

A graph that has an axis of symmetry at x = 3 would be x^2 -6x + 12

Step-by-step explanation:

In order to find a graph that has an axis of symmetry at 3, use the equation for the axis of symmetry of a quadratic.

x = -b/2a

In this equation, a is the coefficient of x^2 and b is the coefficient of x. So, if we use 3 as x and we choose a random number to be a (1), we can solve for the b.

3 = -b/2(1)

3 = -b/2

6 = -b

b = -6

Now that we have this, we can put those two numbers as coefficients. The constant at the end can be anything.

5 0
3 years ago
Read 2 more answers
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