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Law Incorporation [45]
3 years ago
9

3

Mathematics
1 answer:
Zarrin [17]3 years ago
6 0

dont click this one it is not the right answer

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Suppose a polling agency reported that 45.7% of registered voters were in favor of raising income taxes to pay down the national
sineoko [7]
<h2>Answer with explanation:</h2>

As per given , we have

p= 0.457

n= 1033

Margin of error for 99​% confidence : E= 4%=0.04

Confidence interval : p\pm E

i.e. 0.457\pm 0.04

=( 0.457- 0.04,\ 0.457+0.04)=(0.417,\ 0.497)

99% confidence interval for the proportion of registered voters who are in favor of raising income taxes to pay down the national debt. = (0.417, 0.497)

Interpretation : We are 99% sure that the true population proportion of registered voters who are in favor of raising income taxes to pay down the national debt lies in interval (0.417, 0.497).

8 0
4 years ago
What is the domain of the square root function graphed below?
Irina18 [472]

Answer:

D

Step-by-step explanation:

1. The domain is all x values for the function.

2. Since the line starts at the x value of 3, it is included and since it goes to the right, it also includes all the values greater than 3.

3. Therefore, x>_3

8 0
3 years ago
Find the length of the third side. If necessary, write in simplest radical form
NARA [144]

Answer:

5

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

a^2 + 10^2 = (5 sqrt(5))^2

a^2 +100 = 25(5)

a^2 +100 = 125

a^2 = 125-100

a^2 = 25

Taking the square root of each side

sqrt(a^2) = sqrt(25)

a = 5

6 0
3 years ago
Find the coordinates of the center of the given circle. (x - 5)2 + (y + 3)2 = 25 (5, 3) (5, -3) (-5, 3)
Stella [2.4K]

When you write the equation of a circle in the form

(x-x_0)^2+(y-y_0)^2=r^2

Then the center has coordinates (x_0, y_0) and the radius is r

So, in your case, the center is (5,-3) and the radius is 5.

5 0
4 years ago
If the maximum value of y =-x²+ax+b is 8 when x = 3, find the values of a and b​
LuckyWell [14K]
Y' = -2x+a
0 = -2(3)+a
6=a

8=-(3)^2 +(3)(6)+b
b=-1
8 0
3 years ago
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