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3 years ago

9

Choose the best answer:

2 answers:

slavikrds [6]3 years ago

8 0

Answer:

C. 2 square root of 13

Step-by-step explanation:

The area of a right triangle is base times height divided by 2.

In this case, the legs are the base and the height. They gave the ratio as 2 to 3 so by using simple trial and error you can calculate that the legs are 4 and 6 inches long and you can check to make sure that the area matches, and it does!

Now using the Pythagorean theorem a^2 + b^2 = c^2 for right triangles we can find that the length of the hypotenuse, or c, is the square root of 52, by using factorization that will simplify to: 2 square root of 13.

g100num [7]3 years ago

7 0

Answer:

e

Step-by-step explanation:

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Just need help with these 2 questions

liberstina [14]

Answer:

I wanna help but I can't see it properly

5 0

4 years ago

a circle with a radius of 3 has a sector with a central angle of 1/9 pi radians. What is the area of the sector?

Iteru [2.4K]

Answer:

The area of the sector is $\frac{\pi}{2}\ units^2$

Step-by-step explanation:

step 1

Find the area of complete circle

$A=\pi r^2$

we have

$r=3\ units$

substitute

$A=\pi 3^2$

$A=9\pi\ units^2$

step 2

Find the area of the sector

we know that

The area of complete circle subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector by a central angle of 1/9 pi radians

$\frac{9\pi}{2\pi}=\frac{x}{\frac{1}{9}\pi} \\\\x=9\pi(\frac{1}{9}\pi})/2\pi\\\\x=\frac{\pi}{2}\ units^2$

3 0

3 years ago

Read 2 more answers

Can someone please help, ty!!<br> Will mark brainliest!

shtirl [24]

Answer:

34

Step-by-step explanation:

The sum of the angles of a triangle is 180

26x+6 + 21x-1 +11x+1 = 180

Combine like terms

58x +6 = 180

Subtract 6 from each side

58x = 180-6

58x = 174

Divide by 58

58x/58 =174/58

x=3

We want <C

<C = 11x+1 = 11*3+1 = 33+1 = 34

3 0

3 years ago

One group (A) contains 330

katrin2010 [14]

Answer:

group A.)220/330

group B.)339/509

Step-by-step explanation:

2/3 of 330 is 220 therefore the people selected in group a to win $100 fuel cards will be 220/330

same thing for group B. 2/3 of 509 is 339 so the answer will be 339/509

(hope i helped:))

4 0

4 years ago

What are the domain and range of this linear function? f(x)= -3

igomit [66]

Domain : everything
Range : -3

6 0

3 years ago