The heights of four students are 148.5 centimeters, 146.9 centimeters, 148.2 centimeters, and 148.75 centimeters.

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

3 0

C

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Alenkinab [10]3 years ago

3 0

The answer is c 148.2 centimeters

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Kenny weight is 6/7 times Melvin weight. What is the ratio of Kenny weight to Melvin weight? Give answer in fraction form

SOVA2 [1]

-- Kenny's weight is 6/7 of Melvin's weight.

-- Melvin's weight is 7/7 of Melvin's weight.

-- The ratio of Kenny's weight to Melvin's weight is (6/7) / (7/7) = 6/7 .

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3 years ago

Ms.mitchell's coin purse has 20 coins there are 6 pennies are, 4 quarters, 3 dimes, and the remainder are nickels. what is the t

Ber [7]

Answer:

I believe the answer is 7/20 or 35%.

Step-by-step explanation:

I first started by subtracting the coins that we already know from the total, and I get 7. I put that in fraction form which is, 7/20 and I turned it into percent form which is 35%. I hope one of these answers helps.

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3 years ago

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Reflect across the x-axis. Then rotate the shape around point B' 120 degrees clockwise.

Zina [86]

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Answer:

see below

Step-by-step explanation:

Reflection across the x-axis just changes the signs of the y-coordinates. Rotation -120° about B' is difficult to do by hand. The transformation rule for that is ...

(x, y) ⇒ (x·cos(-120°) +y·sin(-120°), -x·sin(-120°) +y·cos(-120°))

(x, y) ⇒ ((-(x-3) +(y+2)√3)/2 +3, (-(x-3)√3 -(y+2))/2 -2)

It looks like your problem is presented in GeoGebra, which makes reflection and rotation easy.