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3 years ago

If PR = 25 and PQ = 12, then QR=

Mathematics

2 answers:

Darina [25.2K]3 years ago

6 0

Answer:

It depends on whether P lies on QR or not.

If not, we can't find the exact answer for this question.

If P does, there are 2 cases:

Case 1: P is between Q and R

so QR = PQ + PR = 12 + 25 = 37

Case 2: Q is between P and R (because PQ < PR so there is no likelihood for R to lie betweem P and Q)

so QR = PR - PQ = 25 - 12 = 13

pentagon [3]3 years ago

3 0

Answer:

QR= 13

Step-by-step explanation:

the points on the line in order from left to right are P, Q, R, which means that the distance from P to R is the length of the line. So PQ is only about half the line. To solve this question you would subtract 12 from 25:

25-12=13

hope that helps. can i have brainliest?

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The triangle has a perimeter of 65 feet. What are the lengths of sides l,m,<br> and n<br> ?

kenny6666 [7]

Answer:

l = 10 feet, m = 30 feet and n = 25 feet

Step-by-step explanation:

The attached figure shows a triangle in which three sides as as follows :

$l=\dfrac{1}{3}m$ , m and $n=l+m-15$

Perimeter of triangle is 65 feet.

Perimeter = sum of all sides

$l+m+n=65$

put the value of n

$l+m+l+m-15=65\\\\2l+2m=80\\\\l+m=40$

Now put the value of l

$\dfrac{1}{3}m+m=40\\\\\dfrac{4}{3}m=40\\\\m=30\ \text{feet}$

⇒ $l=\dfrac{1}{3}\times 30=10\ \text{feet}$

And

$n=10+30-15=25\ \text{feet}$

Hence, l = 10 feet, m = 30 feet and n = 25 feet.

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3 years ago

What is the decimal representation of 2/10

Anvisha [2.4K]

This can be rewritten to
20/100 or 0.2.
Hope this helps :)

4 0

3 years ago

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A tire has a radius of 13 inches. how far does the tire travel every time it turns exactly once? use 3.14 for pi and round your

Vladimir [108]

If we were to put a distinguishing mark on a specific random place on the tire, right at the point where the tire meets the ground for example, when the car starts moving, the tire has made one full revolution when that same mark meets the ground again. That is also known as the circumference of a circle...one time around the circle. The formula for the circumference of a circle is

$C=2\pi r$ .

We are given a radius of 13 inches and are told to use 3.14 for pi. That means that our formula looks like this:

$C=2(3.14)(13)$ and C = 81.6 inches, That's how far the tire travels every time it turns exactly once.

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4 years ago

Is x=-2 calculate the value of x2 +2x

DerKrebs [107]

Hey there,
x ^2 + 2x
(-2) ^2 + 2(-2)
-4 + -4
= -8

Hope this helps :))

~Top

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3 years ago

PLEASE HELP ME PLEASE HELP

Travka [436]

For the cube: 7x6=42
42x8 (sides of a cube+the two on the triangular prism )=336 cm
For the triangular prism: 6x4/2= 12
12x2(faces of the triangular prism)=24 cm
The last face if the triangular prism: 4x6=24 cm

Total: 24+24+336= 384cm

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3 years ago

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