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melamori03 [73]

3 years ago

11

shuan polleted a point on the number line by drawing 5 equally marks 0 and 1 and placing a point on the third mark he clams that

the point represents the fraction 3/5 becasue each mark represents 1/5 so the thrid mark represents 3/5

2 answers:

Dimas [21]3 years ago

6 0

<h2><em>add my discord Big_Man #8293</em></h2>

aleksandr82 [10.1K]3 years ago

4 0

Answer:

cool

Step-by-step explanation:

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If (a+b)^2=54, and (a-b)^=46, then a^2+b^2=?

erastovalidia [21]

$(a+b)^2 =a^2 +b^2 + 2ab = 54~~~.....(i)\\\\(a-b)^2 = a^2 +b^2 -2ab = 46~~~.....(i)\\\\\\(i)+(ii):\\\\(a+b)^2 +(a-b)^2 = 54+46\\\\\implies a^2 +b^2 + 2ab + a^2 +b^2 - 2ab =100\\\\\implies 2a^2 +2b^2 =100\\\\ \\\implies 2(a^2 +b^2) =100\\\\\implies a^2 +b^2 = \dfrac{100}2 = 50$

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3 years ago

A bicycle has tires with a diameter of 21 inches. How many inches will

Finger [1]

Answer:

175 feet

Step-by-step explanation:

In 1 full revolution, the bike will travel 42 inches because the diameter of the tire is 21 inches. Any point on the tire will have to go through a whole revolution to be back at the original point which means 21 inches times 2.

So the bike travels 42 inches in 1 revolution then in 50 revolutions it will travel 2100 inches (42 times 50). Now if your convert 2100 inches to feet, you get 175 feet.

8 0

3 years ago

TanA/secA-1-sinA/1+cosA =2 cotA

Harlamova29_29 [7]

I don’t not know what this I’m only in the 5th gradensns

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3 years ago

(a) An angle measures 27°. What is the measure of its complement?

larisa [96]

Answer:

a) 63°

b) 127°

Step-by-step explanation:

Complements are 90° while supplements are 180°.

So you need to find the complement of 27°. So, 90-27=63

To find the supplement, it is 180-53=127

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velikii [3]

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