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IgorLugansk [536]

3 years ago

10

I need help with this..?

1 answer:

Slav-nsk [51]3 years ago

4 0

Answer:

just flip the shape upside down

Step-by-step explanation:

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A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of us

Reptile [31]

The correct answer to this question is letter "B. <span>Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 0.6." The one on the x axis should be the number of minutes and on the other hand, the one on the y axis should be the amount being charged.</span>

4 0

3 years ago

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Thank you!!!!!!!!!!!!!!!!!!!!!

BabaBlast [244]

A expression people say to express gratitude.

6 0

3 years ago

Plzzzzz help I’ll mark brainlest thxxxx

Sloan [31]

an = a1 +d(n-1)

a4 =a1+d(4-1)

-4 = -1+d(3)

add 1 to each side

-3 = 3d

d= -1

an = a1 +d(n-1)

an = -1 +-1 (n-1)

an = -1 -n +1

an = -n

Choice D

6 0

3 years ago

What's the answer to this <br>4 (w+1)-4w <br>I nee help!

kompoz [17]

Question

what's the answer to this

4 (w+1)-4w

Answer:

<h2>4</h2>

Step-by-step explanation:

4 (w+1)-4w =

4w + 4 - 4w =

4

5 0

3 years ago

A survey among freshman at a certain university revealed that the number of hours spent studying before final exams was normally

patriot [66]

Answer: 0.0775

Step-by-step explanation:

Given : Mean : $\mu = 25$

Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x= 28.2 hours

$z=\dfrac{28.2-25}{\dfrac{15}{\sqrt{36}}}=1.28$

For x= 30 hours

$z=\dfrac{30-25}{\dfrac{15}{\sqrt{36}}}=2$

The P- value = $P(1.28$

$=P(z$

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775

6 0

3 years ago