$General\ equation\ for\ line\ in\ slope\ intercept\ form:\\\\y=ax+b\\\\To\ find\ a\ and\ b\ substitude\ points\ (2,5),\ (9,2)\ into\ equation\\\\ \left \{ {{5=2a+b} \atop {2=9a+b}} \right. \\\\b=5-2a\ \ \ \ \ \ \ \ \ \ \ \ |from\ first\ equation\\\\2=9a+5-2a\ \ \ \ \ |substituting\ to\ the\ second\\2-5=7a\\7a=-3\\a=-\frac{3}{7}\\\\b=5-2\cdot(-\frac{3}{7})\\b=5+\frac{6}{7}=5\frac{6}{7}\\\\y=-\frac{3}{7}+5\frac{6}{7}$

8 0

3 years ago

The coach recorded the time it took 15 students to run a mile. The times are as follows: 9:23, 8:15, 9:23, 9:01, 6:45, 6:55, 7:2

r-ruslan [8.4K]

Answer:

Therefore, the four intervals are

(1) 6 - 6.59

(2) 7 - 7.59

(3) 8 - 8.59

(4) 9 - 9.59

The four frequencies are

(1) 4

(2) 3

(3) 1

(4) 6

Step-by-step explanation:

From the data, we have

Interval Frequency

1st 6 - 6.59 4

2nd 7 - 7.59 3

3rd 8 - 8.59 1

4th 9 - 9.59 6

Therefore, the four intervals are

(1) 6 - 6.59

(2) 7 - 7.59

(3) 8 - 8.59

(4) 9 - 9.59

The four frequencies are

(1) 4

(2) 3

(3) 1

(4) 6

5 0

3 years ago

If you are interested,this is a great way to make a lot of money online! From my experience I would highly suggest you to give i

Sergeu [11.5K]

Answer:

how about no

Step-by-step explanation:

did anyone ask

7 0

2 years ago

Is a giraffe walking slowly across a field a balanced force or a unbalanced force?

kvasek [131]

It is going to be balanced.

4 0

3 years ago

Read 2 more answers