All categories

3 years ago

The points in the table lie on a line. Find the slope of the line.

Mathematics

1 answer:

WINSTONCH [101]3 years ago

5 0

Answer:

Step-by-step explanation:

There is a special formula for determining slope:

change y/change x

7 - 5 = 2

26 - 18 = 8

Slope of line is 1/4

I'm always happy to help :)

You might be interested in

The change in the value of an account when given the nearest dollar?

Molodets [167]

<span>the change get's to the nearest dollar would be your answer</span>

4 0

3 years ago

Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well

laiz [17]

Answer:

The value is $P(A) = 0.133617$

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 7.5$

The standard deviation is $\sigma = 0.2$

The safest water level is between 7.2 and 7.8

Generally the probability that the selected pool has a pH level that is not considered safe is mathematically represented as

$P(A) = 1 - P(7.2 \le X \le 7.8 )$

Here

$P(7.2 < X < 7.8 ) = P(\frac{ 7.2 - \mu }{\sigma } < \frac{X - \mu }{ \sigma }$

Generally $\frac{X - \mu }{ \sigma } = Z (The \ standardized \ value \ of X )$

$P(7.2 < X < 7.8 ) = P(\frac{ 7.2 - 7.5 }{0.2 } < Z$

$P(7.2 < X < 7.8 ) = P(-1.5 < Z$

=> $P(7.2 < X < 7.8 ) = P(Z < 1.5) - P( Z < - 1.5)$

From the z-table the probability of (Z < -1.5) and ( Z <1.5) are

$P(Z < 1.5) = 0.93319$

and

$P(Z < -1.5) = 0.066807$

$P(7.2 < X < 7.8 ) =0.93319 - 0.066807$

$P(7.2 < X < 7.8 ) =0.0866383$

$P(A) = 1 - 0.0866383$

=> $P(A) = 0.133617$

5 0

2 years ago

What expression is equivalent to this expression: 24r + 30

Phoenix [80]

Answer:

6(4r+5)

Step-by-step explanation:

Hope this helped!

8 0

3 years ago

A store is selling a pair of boots for $45.00 is making a 30% profit at this.price. How much did the boots originally cost?

user100 [1]

Answer:

$31.50 profit

Step-by-step explanation:

By subtracting 30% of 45 from 45, we are left with $31.50.

8 0

3 years ago

Read 2 more answers

Find the equation of a line through the points (-1, 3) and (2,-5). show all work please!

masha68 [24]

Find the gradient so (-5-3)/(2+1) =-8/3 input it in y=mx+c and also use the coordinates from the question

So it becomes
3=-8/3 (-1) + c
C=1/3
Y=-8/3 x+1/3

3 0

2 years ago