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3 years ago

The polygons are similar. Find x. 12 6

Mathematics

1 answer:

zloy xaker [14]3 years ago

4 0

Answer:

x=4

you can cross multiply

6/12 = x/8

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A garbage company recycles ½ tons of plastic every 3 minutes. At this rate, approximately how many tons of plastic does the comp

Sauron [17]

Answer:

Total number of minutes in 2 days = 2880

Total time used for recycling garbage in 2 days = 2880/3 = 960

If 3 minutes = 1/2 tons

Then 960 minutes = 960*1/2 = 960/2 = 480

Therefore <u>480</u> tons of garbage where recycled in 2 days

3 0

3 years ago

Review the proof step statement 1 cos(2x) = 1-sin^2(x)

ehidna [41]

Answer:

Option (3)

Step-by-step explanation:

Correct steps for the proof are,

Step Statement

1 cos(2x) = 1 - 2sin²(x)

2 Let 2x = θ

3 x = $\frac{\theta}{2}$

4 $\text{cos}\theta = 1 - 2\text{sin}^2(\frac{\theta}{2} )$

5 $\text{cos}\theta-1 =-2\text{sin}^2(\frac{\theta}{2} )$

6 $1-\text{cos}\theta =2\text{sin}^2(\frac{\theta}{2} )$

7 $\frac{1-\text{cos}\theta}{2} =\text{sin}^2(\frac{\theta}{2} )$

8 $\pm \sqrt{\frac{1-\text{cos}\theta}{2} }=\text{sin}(\frac{\theta}{2} )$

There is a mistake in step 6.

Therefore, Option (3) will be the answer.

3 0

3 years ago

4×+5y=20<br><img src="https://tex.z-dn.net/?f=4%20%5Ctimes%20%20%2B%205y%20%3D%2020" id="TexFormula1" title="4 \times + 5y = 20

aksik [14]

4+5y=20
-4 -4
------------------
5y=16
Divide by 5 on both sides

y=3.2
I hope this is what u wanted. :)

8 0

4 years ago

The marine needs 14 boats for the 42 people registered for a boat race. How many boats will they need for 6 people?

Degger [83]

Answer:

Step-by-step explanation:

We can write a proportion to determine

42 people 6 people

---------------- = ----------------

14 boats x boats

Using cross products

42x = 6*14

42x =84

Divide each side by 42

42x/42 = 84/42

x = 2

They will need 2 boats

5 0

3 years ago

HURRRYYYY FIRST GETS BRAINLLEST Janine wrote the numbers 1-100 and placed them in a bag. If she selects a number without looking

harina [27]

Answer:

1/10 or ( 0.1 )

Step-by-step explanation:

no. of even no.s greater than 80 = 10

Total no.of numbers = 100

So P(no. of even no.s greater than 80) = 10/100 = 1/10

6 0

3 years ago

Read 2 more answers