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lapo4ka [179]
3 years ago
7

Using the following intervals for the scores on a 30-point quiz, how many x's would fall over the interval of 19-21 on a line pl

ot?
Scores: 21, 27, 20, 29, 23, 21, 21, 27, 26, 25

Intervals: 19-21, 22-24, 25-27, and 28-30

A.1

B.4
Mathematics
1 answer:
VikaD [51]3 years ago
7 0

Answer:

B. 4

Step-by-step explanation:

Interval: 19-21

Scores that are between 19 and 21 are underlined:

Scores in order: <u>20, 21, 21, 21</u>, 23, 25, 26, 27, 27, 29

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Find the slope of each graph. Express the answer in simplest form.Please show graph ​
diamong [38]

Answer:

Step-by-step explanation:

rise over run. the slope is -3 for 10.

5 0
3 years ago
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Express as a trinomial (3x+8) (x+10)
docker41 [41]

Answer:

3x^{2} +38x+80

Step-by-step explanation:

Hello!

A trinomial is a expression consisting of three different terms

To turn this into a trinomial we multiply everything to each other

<u>                     3x                     </u>

3x * x = 3x^{2}

3x * 10 = 30x

<u>                     8                      </u>

8 * x = 8x

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Now we put them all together in an equation

3x^{2} +30x+8x+80

Combine like terms

3x^{2} +38x+80

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7 0
3 years ago
How do I solve this problem <br> 15 = w + 4
vova2212 [387]

Answer:

w = 11

Step-by-step explanation:

<u>Step 1:  Subtract 4 from both sides</u>

15 = w + 4

15 - 4 = w + 4 - 4

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Find the equation of a line parallel to y=2x-4 that contains the points (5,1)
Alex73 [517]
The correct answer is
y=2x-9

Since the lines are parallel, they will gave the same slope (in this case it’s 2)

Our equation will be
y=mx+b

We know the slope is 2, and they’ve given us x and y coordinates. Plugging it in to the slope equation we get

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Subtract 10 from both sides and you get

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5 0
3 years ago
What is the square root of 81 and multiplied that by 2?
vovikov84 [41]

Answer: 18


Step-by-step explanation:

Square root of 81 is 9 because 9*9=81 then 9*2=18

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3 years ago
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