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AleksAgata [21]
3 years ago
12

5. What is the slope of the line that passes through (-2, 4) and (7, 1)?

Mathematics
1 answer:
just olya [345]3 years ago
4 0

Answer:

Slope: -\frac{1}{3}

Step-by-step explanation:

Step 1:  Use slope formula to find the slope

m = \frac{y2 - y1}{x2- x1}=\frac{4-1}{-2-7}=\frac{3}{-9} =-\frac{1}{3}

Therefore the slope of a line that passes through (-2, 4) and (7, 1) is -\frac{1}{3}

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3 years ago
June bought three books. For the first book, she paid one half of her allowance plus $1 more. For the second book, she paid one
inysia [295]

Answer:

$34

Step-by-step explanation:

I'd work backwards.

For the third book, she paid all her remaining money. The problem says she paid "1/2 her leftover money + $3". This means that: (let m = money used to buy book 3)

m = 1/2m + 3

1/2m = 3

m = 6

For the second book: (let n = money before book 2)

n - m (money left after book 2) = 1/2n + 2

1/2n +2 is money used up for book, which is the same as n-m.

n = 1/2n + 2 + m

1/2n = 2 + m = 2 + 6

1/2n =8

n = 16

For the first book, she spent 1/2 her money + 1. If o = money before book 1 (or the whole allowance):

o - n = 1/2o + 1

o = 1/2o + n + 1 = 1/2o + 16 + 1

1/2o = 17

o = 34

Check!

Spent 17 (half 34) + 1 on book 1

16 left

Spent 8 (half 16) +2 on book 2

6 left

Spent 3 (half 6) + 3 on book 3

0 left

4 0
3 years ago
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Sauron [17]

Answer:

9/7is the chance of coming red ball

8 0
3 years ago
Read 2 more answers
What is the relationship between the tables, equations and graphs as it relates to rate of change/slope?
Mazyrski [523]

Answer:

What is the relationship between equations and graphs?

Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

Step-by-step explanation:

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2 years ago
PLEASE HELP I GIVE THANKS
dezoksy [38]
For cylinders to be similar, the ratio between their height and radius must be equal.Our cylinder's ratio is :
\frac { length }{ radius } =\frac { 15 }{ 3 } \\ =5

The only cylinder with same ratio is the one at the choice B.

\frac { length }{ radius } \frac { 25 }{ 5 } =5 
6 0
3 years ago
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