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3 years ago

What is the slope I. Need it

Mathematics

1 answer:

lozanna [386]3 years ago

8 0

HEY! So, simply pick 2 exact yet random points on the line.

I picked : (20,50) and (80,90)

Slope equation : y₂-y₁ / x₂-x₁

Plug in the numbers.

m = 90 - 50 / 80 - 20

Simplify.

m = 40/60

Simplify.

m = 4/6

Simplify.

m = 2/3

~Hope I helped!~

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Factor this expression completely mr + ns - nr - ms

Talja [164]

(m - n)(r - s) Hope this helps and heve a nice day!

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2 years ago

Read 2 more answers

The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that th

victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

$\mu=30\\\\\sigma=5.5$

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : $z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{19-30}{5.5}=-2$

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

$P(X$

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228

8 0

2 years ago

Help me now plsss! can't think this one out.

ra1l [238]

She worked 30 hours per week.

The problem turns out to be the following:
2x+15=3x-15.
First you need to have only one x variable so you subtract the X's:
3x-2x=X
The problem now turns into 15=x-15.
You have to isolate the X so you do x+15. You have to do the same to the other side so 15+15=30, therefore x=30

8 0

2 years ago

Last Tuesday was silly hat day at Toby's school. 74 students wore a silly hat and 666 students did not. What percentage of the s

valina [46]

Answer:

10%

Step-by-step explanation:

The total population of students will be equal to the sum of both those who wore the silly hat and those who didn't hence

Total students= 74+666=740

Number of students who wore silly hat is given as 74 hence when expressed as a percentage of the total students' population we get that

percentage of the students wore a silly hat= $\frac {74\times 100}{740}=10\%$

Therefore, 10% of students wore a silly hat last Tuesday

4 0

2 years ago

I don't know this. (3)

Dahasolnce [82]

Answer:

16 feet

Step-by-step explanation:

add 10 ft & 6 ft

3 0

2 years ago