3 years ago

Help please, geometry question.

Mathematics

1 answer:

Inessa05 [86]3 years ago

5 0

I can help, whats the question

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If _______ , what is f^-1(x)? f–1(x) = 9x + 18 ________ f–1(x) = 9x + 2 ________

Dennis_Churaev [7]

If f(x)=1/9x-2
then f^-1(x) will be
lets assume f(x)=y
y=1/9x-2
y+2=1/9x
9(y+2)=x
f^-1(x)=9(y+2)

rest u can do with the same method

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3 years ago

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5. Mai attempted 40 free throws and was successful 25% of them. How many free throws did

Kipish [7]

Answer:

10 were successful

Step-by-step explanation:

40x25%=10

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2 years ago

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If a train traveled at 50 meters within 120 seconds, what is its speed?

Alja [10]

Answer:

v = 0.416 m/s

Step-by-step explanation:

Give that,

Distance covered by a train, d = 50 m

Time taken, t = 120 s

We need to find the speed of a train. The formula for speed of an object is equal to the total distance covered divided by total time taken. It can be given by :

$v=\dfrac{d}{t}\\\\v=\dfrac{50\ m}{120\ s}\\\\v=0.416\ m/s$

So, the speed of a train is 0.416 m/s.

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2 years ago

4.) Find the quotient 20 ÷ 1/4 A.) 5 B.) 40 C.) 10 D.) 80

Mazyrski [523]

1/4 of 20 is 5

A is the answer

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3 years ago

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and inches tall. What was the volume of e

Volgvan

Answer:

47.14 in³

Step-by-step explanation:

Here is the complete question

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and 5 inches tall. What was the volume of each cup?

Volume of a cone = $\frac{1}{3}$ πr²h

π = 22/7

Radius = diameter / 2 = 6 /2 = 3 inches

(1/3) x (3^2) x (22/7) x 5 = 47.14 in³

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2 years ago