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3 years ago

Find the arc length of the partial circle.

Mathematics

1 answer:

katovenus [111]3 years ago

5 0

Answer:7.5π

Step-by-step explanation:

Φ=360-90

Φ=270

Radius=r=5

Length of arc=Φ/360 x 2 x π x 5

Length of arc=270/360 x 2 x π x 5

Length of arc=0.75 x 2 x π x 5

Length of arc=7.5π

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A bag contains counters that are red, black , or green . 1/3 of the counters are red 1/6 of the counters are black There are 15

Nadya [2.5K]

Answer:

There are 5 black counters in the bag.

Step-by-step explanation:

15 green counters in the bag

The proportion of green counters is given by:

$p = 1 - (\frac{1}{3} + \frac{1}{6}) = 1 - (\frac{2}{6}+\frac{1}{6}) = 1 - \frac{3}{6} = 1 - \frac{1}{2} = \frac{2}{2} - \frac{1}{2} = \frac{1}{2}$

So, we have that, the total is x. So

$\frac{x}{2} = 15$

$x = 30$

There are 30 total counters.

How many black counters are in the bag ?

A sixth of the counters are black. So

$\frac{1}{6} \times 30 = \frac{30}{6} = 5$

There are 5 black counters in the bag.

8 0

2 years ago

If it’s right i’ll give brainliest :)

fomenos

Answer:

x=126

Step-by-step explanation:

6 0

2 years ago

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Find the value of x - Step by step answer please

Ugo [173]

Answer:

x = -2

Step-by-step explanation:

Given :

$\frac{8}{x+1} = \frac{-16}{x+4}$

=============================================================

Cross multiplying the terms :

⇒ 8 (x + 4) = -16 (x + 1)

⇒ 8x + 32 = -16x - 16

⇒ 24x = -48

⇒ x = -2

5 0

1 year ago

285y = 15 what’s the solution

lions [1.4K]

Answer:

$285y = 15\\y = \frac{15}{285}\\y = \frac{1}{19}$

Step-by-step explanation:

You have to divide the entire equation by 285 to get y alone.

Then, simplify the fraction to get 1/19.

7 0

2 years ago

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maria [59]

Multiplication by a factor less than 1 will result in a smaller image.
Selections A, D, F.

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2 years ago

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