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user100 [1]
2 years ago
8

Explain how to find the slope of a line that passes through the points (-3, 1), (1, 9. Find the slope

Mathematics
1 answer:
Nutka1998 [239]2 years ago
4 0

Answer:

Slope=2

Step-by-step explanation:

m= 9-1/1-(-3)

m=8/4=2/1=2

Use slope intercept form=y₂-y₁/x₂-x₁

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A measuring wheel is used to calculate the length of a path. The diameter of the wheel is 8 inches. If the wheel rotates 15 time
Oksi-84 [34.3K]
To fint the length first one must find circumference to do that we use the formula D*Pi (diameter times Pi. Diameter = 8 Pi is the constant of 3.1415
so. 8*3.1415 = appox 25.1327. cow that we have  circumference we should multiply by the amount of times the wheel rotates (15)
so. 15*251327 = appox 376.9911in now convert to feet. 12 in = 1 foot so divide by 12
so 376.9911 / 12 = about 31.4
round down to 31 feet
8 0
2 years ago
All of the points in the graph are on the same line.<br><br> Find the slope of the line.
geniusboy [140]

Answer:

The slope of the line is \frac{1}{2}.

-

Step-by-step explanation:

☆Remember:

m =  \frac{y_2 - y_1}{x_2 - x_1}

☆Just plug it in with 2 sets of coordinate points.

m =  \frac{7 - 3}{9 - 1} =  \frac{4}{8}  =  \frac{1}{2}

8 0
3 years ago
2 things wrong with the questionnaire? And..
lbvjy [14]
Doesn't ask what kind of cd's and what age it was aimed at
3 0
3 years ago
Read 2 more answers
Find the percent decrease. Round to the nearest percent. From 96°F to 71°F​
barxatty [35]

Step-by-step explanation:

100% = 96

1% = 100%/100 = 96/100 = 0.96

the temperature changed by 96 - 71 = 25.

how many % are these 25 ?

we check how often 1% fits into 25.

that is done by division :

25 / 0.96 = 26.04166667 ≈ 26%

7 0
2 years ago
The manager of a store orders model railroad sets that cost $390 and sells them for $429. What is the mark-up, as a percentage?
Katarina [22]

Answer:

10%

Step-by-step explanation:

We have been given that the manager of a store orders model railroad sets that cost $390 and sells them for $429.  

We will use markup % formula for our given problem.

\text{Markup percentage}=\frac{\text{Selling price- Cost}}{\text{Cost}}\times 100

\text{Markup percentage}=\frac{429-390}{390}\times 100

\text{Markup percentage}=\frac{39}{390}\times 100

\text{Markup percentage}=\frac{1}{10}\times 100

\text{Markup percentage}=10

Therefore, markup is 10% of cost.

4 0
3 years ago
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