3 years ago

If 9:3 is equal to 3:1 and then what is 12:4 equal to ?

Mathematics

1 answer:

avanturin [10]3 years ago

4 0

Answer:

36:12 or 3:1

Step-by-step explanation:

12:4= 36: 12

or 12:4 simplify= 3:1

hope it helps

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Given parallelograms ABCD, AC=22, and AE=2x-5, find the value of x.

zzz [600]

Answer:

Step-by-step explanation:

the diagonals of a parallelogram bisect each other , then

2 AE = AC ( substitute values )

2(2x - 5) = 22 ( divide both sides by 2 )

2x - 5 = 11 ( add 5 to both sides )

2x = 16 ( divide both sides by 2 )

x = 8

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2 years ago

Alice is riding a Ferris wheel, where t is time in seconds. Suppose the Ferris wheel is 22 m tall. Let h(t) = 11cos(12t) represe

Soloha48 [4]

Answer:

Alice reaches 11 metres below the centre as lowest height.

Step-by-step explanation:

Cosine is a bounded function between -1 and 1, so that the lowest height that Alice achieves in Ferris wheel is:

$h(t) = 11\cdot \cos (12\cdot t)$

Where:

$t$ - Time, measured in seconds.

$h(t)$ - Height with respect to centre, measured in metres.

If $\cos (12\cdot t) = -1$ , then:

$h_{min} = 11\cdot (-1)$

$h_{min} = -11\,m$

Alice reaches 11 metres below the centre as lowest height.

7 0

3 years ago

a painter charges $32 per hour for labor plus $50 for supplies. if the total charge was $338 how many hours did he spend paintin

Andrei [34K]

First subtract the supplies cost ($338--$50=288). Then divide 288 by his hourly cost (288/32=9). He worked for 9 hours :)

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3 years ago

You might need:

Soloha48 [4]

Answer:

I believe x=18.

7 0

3 years ago

2 Points

Agata [3.3K]

The answer is A. True

5 0

4 years ago