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PilotLPTM [1.2K]
2 years ago
8

What is the area of the semicircle?

Mathematics
2 answers:
gogolik [260]2 years ago
5 0

Answer:

1/2 *22/7* r² .............. . ..

yawa3891 [41]2 years ago
5 0

Answer:

Area = Pi(radius^2)(0.5)

Pi = 3.14159

Step-by-step explanation:

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a_sh-v [17]
D is not a polynomial

6 0
3 years ago
The table below represents a linear function in the equation represents a function. table numbers are X: -1,0,1. f(x): -3,0,3. G
Alexxx [7]
A)
SLOPE OF f(x)
To find the slope of f(x) we pick two points on the function and use the slope formula. Each point can be written (x, f(x) ) so we are given three points in the table. These are: (-1, -3) , (0,0) and (1,3). We can also refer to the points as (x,y). We call one of the points ( x_{1} , y_{1} ) and another ( x_{2} , y_{2} ). It doesn't matter which two points we use, we will always get the same slope. I suggest we use (0,0) as one of the points since zeros are easy to work with.

Let's pick as follows:
( x_{1} , y_{1} )= (0.0)
( x_{2} , y_{2} )= (1.3)

The slope formula is: m= \frac{y_{2} - y_{1} }{ x_{2}- x_{1}  }
We now substitute the values we got from the points to obtain.
m= \frac{3-0}{ 1-0 } = \frac{3}{1}=3

The slope of f(x) = 3

SLOPE OF g(x)
The equation of a line is y=mx+b where m is the slope and b is the y intercept. Since g(x) is given in this form, the number in front of the x is the slope and the number by itself is the y-intercept.

That is, since g(x)=7x+2 the slope is 7 and the y-intercept is 2.

The slope of g(x) = 2

B)
Y-INTERCEPT OF g(x)
From the work in part a we know the y-intercept of g(x) is 2.

Y-INTERCEPT OF f(x)
The y-intercept is the y-coordinate of the point where the line crosses the y-axis. This point will always have an x-coordinate of 0 which is why we need only identify the y-coordinate. Since you are given the point (0,0) which has an x-coordinate of 0 this must be the point where the line crosses the y-axis. Since the point also has a y-coordinate of 0, it's y-intercept is 0

So the function g(x) has the greater y-intercept
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3 years ago
Which exponential function has a growth factor of ?
ludmilkaskok [199]
Letter B would be the correct answer
8 0
3 years ago
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Solve the equation 42=7r r=​
Juli2301 [7.4K]

Answer: r=6

Step-by-step explanation:

Because if 42 equals 7 times r you just have to divide 42 by 7.

8 0
3 years ago
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Describe how to estimate a non-perfect square root to the hundredths place without a calculator
slavikrds [6]

Answer:

First, estimate between two whole numbers by finding the perfect squares nearest to the target number. Next, identify which value the non-perfect square root is closer to, then use the iterative process to approximate further to the tenths place, and then further to the hundredths place.

Hope this helps!

Sincerely; Victoria<3

Step-by-step explanation:

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3 years ago
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