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2 years ago

Which of the following are true

Mathematics

1 answer:

Eva8 [605]2 years ago

6 0

I cannot see the question

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The perimeter of the quadrilateral is 43 centimeters. Find the length of each side.

vesna_86 [32]

Step-by-step explanation:

A quadrilateral is made up of four sides. This means the sum of all the side equals 43. This is given as;

(x + 7) + (x² - 2x ) + (x +3) + (2x - 2) = 43

x² - 2x + 4x + 8 = 43

x² - 2x - 35 = 0

Upon solving for x by factorization;

( x - 5) ( x + 7) = 0

The values of x are; 5 and - 7

Since the side of shape cannot have a negative value, -7 is ignored.

x = 5

The length of the sides are;

- X+7 = 5 + 7 = 12

- x² - 2x = 5² - 2(5) = 25 - 10 = 15

- X+3 = 5 + 3 = 8

2x-2 = 2(5) - 2 = 10 -2 = 8

Check:

8 + 8 + 15 + 12 = 43

7 0

3 years ago

Write the expression that is represented by the phrase below.

Inga [223]

Answer:

y^2-(x+4)

Step-by-step explanation:

y^2-(x+4)

3 0

2 years ago

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The table shows conversions of common units of capacity.

Vaselesa [24]

Answer:

Step-by-step explanation:

4 0

2 years ago

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if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km

ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

$\frac{40km}{60min}=\frac{10km}{xmin}$

Now cross multiply:

$40km*xmin=10km*60min\\40x=600$

Divide both sides by 40:

$\frac{40x}{40}=\frac{600}{40}\\x=15$

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0

3 years ago

WILL GIVE BRAINLIEST IF YOU GIVE AN EXPLANATION. In the packaging part of a warehouse, boxes of blue cups must be moved from the

Ugo [173]

Answer:

components: ⟨15, 75⟩, magnitude: about 76

I got this right edge 2020

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2 years ago

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