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krok68 [10]
3 years ago
12

A student reads that a 95% confidence interval for the mean SAT math score of California high school seniors is 452 to 470. Aske

d to explain the meaning of this interval, the student says, "95% of California high school seniors have SAT math scores between 452 and 470." Is the student right? Justify your answer.
Mathematics
1 answer:
mestny [16]3 years ago
5 0
Yes he is correct due to facts stated
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Antonio buys a 10-pound bag of potatoes for $3.98. To the nearest cent, how much is 1 pound of potatoes?
valentinak56 [21]

Answer:

C $0.40

Step-by-step explanation:

to find how much one pound of potatoes is, you have to divide the the cost of the bad by the number of pounds ($3.98 divided by 10 pounds)

$3.98 : 10 = $0.398 = $0.40

3 0
3 years ago
The set S = {x|-11 < x < 2} is described by which interval notation?
Alla [95]

They are open ended because -11 and 2 are not included in the interval.

<h3>Linear inequality in interval notation</h3>

Linear equations are expression not separated by an equal sign.

Given the inequality S = {x|-11 < x < 2}

This means that the values in the interval is between -11 and 2, the expression in interval notation will be given as;

(-11, 2). Note that they are open ended because -11 and 2 are not included in the interval.

Learn more on interval notation here: brainly.com/question/13160076

#SPJ1

3 0
2 years ago
A solution of the equation 2x^2 +3x +2 = 0<br> Please show how you got the answer!<br> Thanks!
Lyrx [107]
Using the quadratic formula, plug a=2, b=3, and c=4 into the formula because the equation given can not be factored. 

x= -3(+/-) radical (3^2-4*2*2)/2(2)

therefore, x= (-3+ radical 7 i) / 4
                  x= (-3- radical 7 i )/ 4. 

the answer choice is 1. 
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4 0
3 years ago
This star is made up of 4 equilateral triangles of equal area and a square.
pentagon [3]

Answer:

24 cm

Step-by-step explanation:

Given: Picture of the star is made up of 4 unshaded equilateral triangles of equal area and a shaded square.

Area of the shaded region (square) = 9\,\, cm^2

To find: the perimeter of the star

Solution:

Area of the shaded region (square) = 9\,\, cm^2

Area of square = (side)^2

(side)^2=9\\side=3\,\,cm

As each equilateral triangle has side lengths that are the same as the side length of the square,

length of side of the star = 3 cm

Perimeter is the sum of lengths of the sides.

Perimeter of star = sum of 8 sides of the star

= 8 × 3 = 24 cm

4 0
4 years ago
6b.) Graph the given points C(-3, 2) and D(6, 2) and find the slope.<br> What is the slope?
White raven [17]
I think y=2 there both on the 2 y intercept straight from each Other
6 0
3 years ago
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