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3 years ago

Anyone please help and explain !! thanks

Mathematics

1 answer:

Serhud [2]3 years ago

8 0

AP and BQ are medians of the triangle ABC and K is the centroid of the triangle.
One of the properties of the medians is that the point of intersection divides the median in the ratio 2:1

So BK = 2 KQ therefore

15 = 2 * KQ
and KQ = 7.5 answer

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Using approciate properties find -4/7*3/5+4/7*-1/5+2/5*-4/5

slega [8]

Answer: 0.548

Step-by-step explanation:

First you need to remember the formula for PEMDAS(Parenthesis,exponents,multiplication,divison,addition,subtractio)

you can do either multiplication or divison whichever comes first, same with addition+subtraction.

the underlined means to simplify

1.-0.57x3/5+4/7x-1/5+2/5x-4/5

2.-1.71/5+4/7x-1/5+2/5x-4/5

3.-0.342+4/7x-1/5+2/5x-4/5

4.-0.342+0.57x-1/5+2/5x-4/5

5.-0.342+0.57x-0.2+2/5x-4/5

6.-0.342+0.114+2/5x-4/5

7.-0.342+0.114+0.4x-4/5

8.-0.342+0.114+-1.6/5

9.-0.342+0.114+-0.32

10.-0.228+-0.32=-0.548

i did this all in one go so......

8 0

3 years ago

-300 =5x-(-8x+3) step by step

cupoosta [38]

Answer:

x= −297 /13

Step-by-step explanation:

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3 years ago

Two column proofs Beginner's

Darina [25.2K]

LETS prove the 2nd part of the Question

Here concept of right angles is used

We can see BA is perp to BD

and BC is perp to BE

We have to prove angle 1 = angle 3

i will denote angle by a

therefore we need to prove a1 = a3

as BA is perp to BD hence angle between them will be 90 degree

a1 + a2 = 90 degree

Similarly BC is perp to BE

a2 + a3 = 90 degree

as both equations add up gives 90 degree so will equate them

a1 + a2 = a2 + a3

which means a1 = a3

Hence Proved

To learn more about Right Angles:

brainly.com/question/7116550

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1 year ago

Hayden's rectangular container has a height of 6ft and a base area of 72 square feet. Find the volume of water it would take to

Zinaida [17]

Answer:

432ft^2

Step-by-step explanation:

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3 years ago

A plane cuts a pyramid as shown in the diagram. What is the shape of the cross section?

forsale [732]

The answer is a hexagon
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3 years ago

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