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shepuryov [24]
3 years ago
13

* plz hurry it is on a test

Mathematics
1 answer:
STatiana [176]3 years ago
7 0

Answer:

slope = 1/4

Step-by-step explanation:

The slope of a line is defined by the rise (change in y-value)/run (change in x-value.  The change in y-value is 0 - (-2) = 0 + 2 = 2.  The change in x-value is -2 - (-10) = -2 + 10 = 8.  Therefore, the slope is 2/8 or (simplified) 1/4.

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How do you rewrite y+4=-2(x-1) in slope-intercept form
GaryK [48]
First, distribute -2 into the parentheses which gives you y+4=-2x+2. Subtract 4 to both sides and you get y=-2x-2. This would be the slope-intercept form of the original equation.
5 0
3 years ago
Read 2 more answers
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea
Archy [21]

Answer:

Step-by-step explanation:

Given data:

\mu = 473

standard deviation is \sigma=  28

As distribution is normal in shape and values are symmetrical

The standard deviation rule says that 95% of observation lies between the second standard deviation of the mean

so, approximately only 5% of observation lies outside the interval and normal shape is symmetric. hence approximately 0.15% of observation lies above the interval

             = \mu + 2\times \sigma

             = 473 + 2\times 28 = 529

almost 0.15% of students spent more amount is 529

6 0
3 years ago
there are 700 lockers on the 6th grade hallway. three fifths of the lockers are being used. how many lockers are not being used
Tasya [4]

Answer: 280 lockers

Step-by-step explanation:

3/5*700= 420 so 420 are being used and 700-420=280 lockers not in use

8 0
2 years ago
Read 2 more answers
Determine the mean of the following data. Choose the correct option.<br> 7, 8, 9, 2, 4, 5, 12, 9
Brut [27]

Answer:

7

Step-by-step explanation:

mean means average

there are 8 numbers

add them all up

7+8+9+2+4+5+12+9=56

divide 56 by 8 = 7

8 0
2 years ago
Share 56 sweets in the ratio 2 : 5.
kherson [118]
Answer is 16:40

Add up the parts of the sweets so 2+5=7.
Then with the total amount (56)/7=8.
8x2= 16
8x5=40
5 0
2 years ago
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