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Mathematics

2 answers:

Rzqust [24]3 years ago

7 0

Step a is (2,7)/(8,13).

Step b is 1

Step c is y-7 = x-2

Step d is y = x +5

Nady [450]3 years ago

6 0

A) You would use the two points that are closest to the graphed line

(2,7) and (8,13)

B) Slope = change in Y over the change in X:

Slope = (13-7) / (8-2) = 6/6 = 1

Slope = 1

c) Point slope is written as y -y1 = m(x-x1) where m is the slope y1 is the first Y value and x1 is the first x value.

Equation is: y-7 = x-2

d) To rewrite y -7 = x-2 in slope intercept form, you need to isolate y.

To isolate Y add 7 to both sides:

y = x +5

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ANY QUESTION WILL DO!

Ostrovityanka [42]

I'll have Martin as X and Melvin as Y.

So the equation for X is, 15(starting point) and +5 every set.

Here's a table
________________
The amount of sets|Lbs -------->This one's for Y
__________________ ________________
0 | 15 0 | 60
1 | 20 1 | 50
2 | 25 2 | 40
3 | 30 3 | 30
4 | 35

On the third set, tables help. I'll do the first question in the comments

3 0

4 years ago

Read 2 more answers

Clyde Cement wants to analyze a shipment of bags of cement. He knows the weight of the bags is normally distributed so he can us

labwork [276]

Answer:

50%

Step-by-step explanation:

First, draw a normal distribution plot to use for the analysis of the data. Starting at the mean in the centre. Add one standard deviation for each interval to the right, and subtract one standard deviation for each interval to the right. See attached image. According to the empirical rule, 68% of data lies within one standard deviation of the mean, 95 % of the data is within two st. dev. and 99.7% of the data is within 3 st. dev. of the mean.

From the graph it can be deducted that half of the data will lie below 50, which makes it 50%.

An easier way of determining the answer is to use the definition of a mean. A mean is the number that,when all the data is placed in ascending order, lies right in the middle of all the data.