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kondor19780726 [428]
3 years ago
11

Urgent!!!! The scores of a high school entrance exam are approximately normally distributed with a given mean Mu = 82.4 and stan

dard deviation Sigma = 3.3. What percentage of the scores are between 75.8 and 89?
68%

95%

99.7%

100%

Mathematics
2 answers:
Effectus [21]3 years ago
5 0

Answer:95%

Step-by-step explanation:

DedPeter [7]3 years ago
5 0

Answer:

95 or B

Step-by-step explanation:

right on edge

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Find the equation of a line passing through the point (2, 3) and having a slope of 3.
Delvig [45]

Answer:

The answer to your question is the letter B) y = 3x - 3

Step-by-step explanation:

Data

Point = (2, 3)

slope = m = 3

Process

To solve this problem just substitute the values given in the slope-point equation.

Formula

               y - y1 = m(x - x1)

   x1 = 2      y1 = 3

-Substitution

              y - 3 = 3(x - 2)

-Expand

              y - 3 = 3x - 6

-Solve for y

             y = 3x - 6 + 3

-Result

             y = 3x - 3        

5 0
3 years ago
Write a division problem whose quotient has its first digit in the hundreds place.
Dominik [7]

--  500  divided by  5

--  17,684  divided by  58.4

7 0
4 years ago
Can someone help me with this, please? I'm not sure how to solve this.
bazaltina [42]

Answer:

11.) 10w^2 + 43w + 21.

12.) -15y^2 - 2y + 8

Check the explanation for details

Step-by-step explanation:

11.) You are meant to multiply each row by both columns. For instance, multiply 5w by 2w and 7 you will get 10 w^2 and 35 w

Also, multiply 3 by both 2w and 7 you will get 6w and 21. Therefore,

Expansion of ( 5w + 3 )( 2w + 7 ) will produce 10w^2 + 37w + 6w + 21

= 10w^2 + 43w + 21.

12.) Repeat the same process by multiplying row by column.

Multiply -3y by 5y and 4 you will get -15y^2 and -12y.

Also, multiply 2 by same 5y and 4. You will get 10y and 8

Therefore, the expansion of

( -3y + 2 )( 5y + 4 ) will be

-15y^2 - 12y + 10y + 8

-15y^2 - 2y + 8

4 0
3 years ago
to make one dozen muffins 3/4 cup of blueberries will be needed how many cups of blueberries ared needed to make 48 muffins ​
Helga [31]
You will need 6/4 or 1 1/2 cups of blueberries to make 48 muffins (2 dozen),
6 0
3 years ago
Read 2 more answers
Peggy was taking a timed 90-question test. She was able to correctly answer 80% of the questions but had to skip the rest. How m
professor190 [17]
Multiply your total by your percentage

90 * .80 = 72

72 is the number of questions she answered correctly
7 0
4 years ago
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