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Alex_Xolod [135]
3 years ago
10

Please help me ASAP

Mathematics
2 answers:
Colt1911 [192]3 years ago
7 0
First,let's find the slope-intercept form of equation which is y=mx+b, where y and x are coordinates, m is the slope and ,c is the y-intercept
y+6.75=0.25(x-1)                                                   y=0.25(2)-6.5
y+6.75-6.75=0.25x -0.25 -6.75                            y=-6
y=0.25x-6.5   
(2,-6)  is the only correct answer I think is on the line with this equation.

Rom4ik [11]3 years ago
3 0

Answer:

Option B and C, i.e., (-3,-7.75) and (4,-6)

Step-by-step explanation:

The given equation is

y+6.75=0.25(x-1)

We need to find ordered pairs which are on the line.

The given equation can be rewritten as

y=0.25x-0.25-6.75

y=0.25x-7

For x=2,

y=0.25(2)-7=0.5-7=-6.5\neq -6

For x=-3,

y=0.25(-3)-7=-0.75-7=-7.75

For x=4,

y=0.25(4)-7=1-7=-6

For x=7,

y=0.25(7)-7=1.75-7=-5.25\neq 5

Therefore, points (-3,-7.75) and (4,-6) are on the line. Options B and C are correct.

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Help plz I’ll mark brainlist
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If the scale were 1:63,360, for instance, then 1 inch on the map would represent 63,360 inches or 1 mile on the ground (63,360 inches divided by 12 inches = 5,280 feet or 1 mile).
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2 years ago
A market research analyst claims that 32% of the people who visit the mall actually make a purchase. You think that less than 32
Rainbow [258]

Answer:

E. -1.48

Step-by-step explanation:

The test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the expected value, \sigma is the standard deviation and n is the size of the sample.

A market research analyst claims that 32% of the people who visit the mall actually make a purchase.

This means that:

\mu = 0.32

\sigma = \sqrt{0.32*0.68} = 0.4665

You stand by the exit door of the mall starting at noon and ask 82 people as they are leaving whether they bought anything. You find that only 20 people made a purchase.

This means that n = 82, X = \frac{20}{82} = 0.2439

The value of the test statistic is about:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

t = \frac{0.2439 - 0.32}{\frac{0.4665}{\sqrt{82}}}

t = -1.48

So the correct answer is given by option E.

3 0
3 years ago
The product of 7/8 and 9/10 is greater then 9/10
kati45 [8]
No the product will be less than 9/10.
This can be easily seen if the fractions are converted into decimals.
The decimal form of the product of 7/8 and 9/10 is 0.867 while the decimal form of 9/10 is 0.9. Therefore, the product of 7/8 and 9/10 is not greater than 9/10
3 0
3 years ago
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A film lasts 2 hours and 35 minutes. Greg is going out at 8.15 . If he starts watching the film at 5.30 will he have time to war
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Answer:

Yes, he will have enough time to watch the entire film.

Step-by-step explanation:

5:30 to 6:30 is 1 hour of the movie completed.

6:30 to 7:30 is 2 hours completed.

7:30 plus 30 minutes brings him to 8:00.

8:00 plus the additional 5 minutes brings Greg to 8:05.

His movie ends at 8:05, so he will be able to watch the entire movie before going out.

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3 years ago
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Solve for x in the equation x^2+10x+12=36.
Alexandra [31]
Solve for x:
x^2 + 10 x + 12 = 36

36 = 36:
x^2 + 10 x + 12 = 36

Subtract 12 from both sides:
x^2 + 10 x = 24

Add 25 to both sides:
x^2 + 10 x + 25 = 49

Write the left hand side as a square:
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Take the square root of both sides:
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Subtract 5 from both sides:
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Subtract 5 from both sides:
Answer:  x = 2 or x = -12 Thus the Answer is A.
3 0
3 years ago
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