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3 years ago

Which answer is not a main function of the skin?

Mathematics

1 answer:

Iteru [2.4K]3 years ago

7 0

Answer:

First you choose a wrong section, second, the answer is: helps the body move.

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An express train travels 80km/h from Ironton to Wildwood. A local train, traveling at 48km/h, takes 2 hours longer for the same

masha68 [24]

Answer:

They are 240 kilometers apart.

Step-by-step explanation:

This question can be solved using the following relation:

$v = \frac{d}{t}$

In which v is the velocity, d is the distance and t is the time.

An express train travels 80km/h from Ironton to Wildwood.

Here we have $v = 80, t = x$ . So

$v = \frac{d}{t}$

$80 = \frac{d}{x}$

$d = 80x$

A local train, traveling at 48km/h, takes 2 hours longer for the same trip.

This means that when $v = 48, t = x + 2[tex]. So[tex]v = \frac{d}{t}$

$48 = \frac{d}{x+2}$

Since $d = 80x$

$48 = \frac{80x}{x+2}$

Applying cross multiplication

$80x = 48(x + 2)$

$80x = 48x + 96$

$32x = 96$

$x = \frac{96}{32}$

$x = 3$

So the distance is:

$d = 80x = 80*3 = 240$

They are 240 kilometers apart.

3 0

3 years ago

For what value of x is line m parallel to line n? Enter your answer in the box. x = ?

Zielflug [23.3K]

Answer-

The value of x is 10

Solution-

When two lines are crossed by another line (transversal), the angles in matching corners are called Corresponding Angles.

When the line are parallel the corresponding angles are equal in measurement.

As m and n are parallel line, so

$\Rightarrow 8x+50=130$

$\Rightarrow 8x=130-50$

$\Rightarrow 8x=80$

$\Rightarrow x=10$

3 0

3 years ago

Read 2 more answers

Choose a positive number. Using this number as the base, evaluate it when the exponent is 3, 0, and -2. Show all work.

serious [3.7K]

Step by step explaination:
Positive number = 5
When Exponent is 3, it equals: 125
When exponent is 0, it equals: 1
When exponent is -2, it equals: 1/25 or .04

6 0

3 years ago

Read 2 more answers

5. Find the coordinates of the midpoint of the segment whose endpoints are 1l(6, 4) and K(2. 8).

Cerrena [4.2K]

Answer:

5. D (4,6)

6. B (7.8)

Step-by-step explanation:

5. Add the two X coordinates (6+2) and divide that by 2 (8/2=4), do the same for the two Y coordinates (4+8=12, 12/2=6)

6. Use the distance formula $\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}\\$

Input the coordinates $\sqrt{(3-8)^{2}+(8-2)^{2}$

3 0

3 years ago

Read 2 more answers

Solve: -8a+ 6(a+7)=1

Pavel [41]

20.5 i used math.way

4 0

3 years ago