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2 years ago

Pretty please help I’m timed

Mathematics

2 answers:

Aleks [24]2 years ago

7 0

Answer:

The first one

Step-by-step explanation:

Because the numbers line up...after the 5, before the -5, and after the -10

Alex2 years ago

3 0

Answer:

First one...

Step-by-step explanation:

Welp I mean if you look at the numbers -12, -3 and 7 you can see how they corrspoond to the points plotted on the first number line.

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Question 1 (1 point)

vekshin1

Answer:

4,3

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What happens to the mean of the data set shown below if the number 20 is added to the data set?

defon

Answer:

This shows that the mean increases by 2.95

Step-by-step explanation:

Assume the given data is 2, 5, 6, 8

Mean = 2 +5+6+8/4

Mean = 21/4

Mean = 5.25

If number 20 is added, the data becomes 2, 5, 6, 8, 20

New mean = 2 +5+6+8+20/4

New mean = 41/5

New mean = 8.2

Taking the difference in the mean:

Difference = 8.2 - 5.25

Difference = 2.95

This shows that the mean increases by 2.95

<em>NB: The data used was assumed since we are not given any data in question</em>

4 0

2 years ago

Need help with this question

miskamm [114]

Y = t + 9. hope this helps

8 0

2 years ago

Whats the solve for x?

kramer

Answer:

147

Explanation:

Just subtract 180-33. All of the angles need to equal 180 in total.

3 0

3 years ago

An airline runs a commuter flight between Portland, Oregon, and Seattle, Washington, which are 145 miles apart. An increase of 2

pychu [463]

The speed of the airplane is the ratio of the distance to the time

The initial average speed of the airplane is approximately 110.8 mph

Reason:

Given parameters are;

The distance between Portland Oregon and Seattle Washington = 145 miles

The decrease in travel time when the speed is increase by 20 mph = minutes

The initial speed of the airplane, v = Required;

Solution;

$t = \dfrac{145}{v}$

$t - \dfrac{12}{60} = \dfrac{145}{v + 20}$

Therefore;

$\dfrac{145}{v} - \dfrac{12}{60} = \dfrac{145}{v + 20}$

Which gives;

$\dfrac{145}{v + 20} - \dfrac{145}{v} + \dfrac{12}{60} = 0$

Therefore

0.2·v² + 4·v - 2,900 = 0

v ≈ ±110.8 mph

The initial average speed of the airplane, v≈ ± 110.8 mph

Learn more here:

brainly.com/question/11365874

4 0

2 years ago