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3 years ago

Find the area of shaded sector of the circle?

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

8 0

Tutu bskdnb dhdbdvrnir

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CAN SOMEONE PLEASE HELP ME

Degger [83]

Answer:

38 degrees

Step-by-step explanation:

this is an isosceles triangle, meaning that the base angles are congruent.

the total triangle is equal to 180

so the equation would be: x=180 - (71+71)

evaluate:

x=180-142

x=38 degrees

Hope this helps :)

5 0

3 years ago

Divide 60kg in the ratio 5:7

snow_lady [41]

Step-by-step explanation:

Hey there!!

Given, The ratio is: 5:7

Let x be a common factor.

Now,

5x+7x = 60

12x = 60

$x = \frac{60}{12}$

Therefore, x= 5.

5x = 5×5 = 25.

7x= 7×5=35.

Hope it helps...

8 0

3 years ago

Sec(2n+20)=1/cos(n+40) n=

Lera25 [3.4K]

Answer:

Step-by-step explanation:

$\frac{1}{cos (2n+20)} =\frac{1}{cos(n+40)} \\cos (2n+20)=cos(n+40)\\cos (2n+20)-cos (n+40)=0\\-2 sin( \frac{2n+20+n+40}{2}) sin (\frac{2n+20-n-40}{2} )=0\\sin (\frac{3n}{2} +30)sin (\frac{n}{2} -10)=0\\either sin (\frac{3n}{2}+30)=0=sin180k\\\frac{3n}{2}=180k-30\\3n=360k-60\\n=120k-20,k ~is~an~integer.\\or~\frac{n}{2}-10=180k\\n=360 k+20\\where~k~is~an~integer.$

8 0

3 years ago

What is −56÷910? −2725 −43 −2527 −34 (Help needed lol)

SOVA2 [1]

Answer:

0.0615384

Step-by-step explanation:

None of the answer choose match my answer

-56/910= 0.0615384

7 0

4 years ago

Read 2 more answers

Kathy stood on the middle rung of a ladder. She cimbed up 3 rungs, moved down 5 rungs, and then climbed up 9 rungs. Then she cli

laiz [17]

Answer:

18 rungs

Step-by-step explanation:

Let x = number of rungs

x/2 = middle

Climbed 3

x/2 +3

Down 5

x/2 +3 -5

Climbed 9

x/2 +3 -5+9

Then climbed 2 more

x/2 +3 -5+9 +2

Now is at the top

x/2 +3 -5+9 +2 =x

Combine like terms

x/2 +9 = x

Subtract x/2 from each side

x/2+9-x/2 = x - x/2

9 = x/2

Multiply each side by 2

18 =x

5 0

3 years ago