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3 years ago

Which equation could be used to solve for the length of XY?

Mathematics

2 answers:

Dafna11 [192]3 years ago

5 0

Answer:D

Step-by-step explanation:

dem82 [27]3 years ago

3 0

We are looking for the hypotenuse in this right triangle. The reference angle is 41 degrees. We have that angle and the side that is opposite that angle, 22, so the trig identity that we will use that relates the side opposite to the hypotenuse is sin. Our ratio would be set up like this: $sin(41)= \frac{22}{xy}$ . Solving for xy we will have $xy= \frac{22}{sin(41)}$ , choice D from above.

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Answer:

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Step-by-step explanation:

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2 years ago

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FromTheMoon [43]

Answer:

$C=0.65M+22.65$

Step-by-step explanation:

The standard charge includes an initial fee and plus an addditional fee for each mile driven and is given by:

$S=0.40M+17.75$

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So, the total charge C will be the sum of the standard charge S and the insurance charge I:

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Substitute:

$C=(0.40M+17.75)+(0.25M+4.90)$

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$C=(0.40M+0.25M)+(17.75+4.90)$

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3 years ago

Geometry math question no Guessing and Please show work thank you

Daniel [21]

Hello!

Each minute on a clock or watch is 6°, as you divide 360° by 60 minutes. As you can see, 32 minutes elapsed during the class. Therefore we just multiply.

32(6)=192

Therefore, our answer is B) 192.

I hope this helps!

5 0

3 years ago

Iteru [2.4K]

Answer:

a. 45 π

b. 12 π

c. 16 π

Step-by-step explanation:

If a 3×5 rectangle is revolved about one of its sides of length 5 to create a solid of revolution, we can see a cilinder with:

Radius: 3

Height: 5

Then the volume of the cylinder is:

V=π*r^{2} *h= π*(3)^{2} *(5) = π*(9)*(5)=45 π

b. If a 3-4-5 right triangle is revolved about a leg of length 4 to create a solid of revolution. We can see a cone with:

Radius: 3

Height: 4

Then the volume of the cone is:

V=(1/3)*π*r^{2} *h= (1/3)*π*(3)^{2} *(4) = (1/3)*π*(9)*(4)=12 π

c. We can answer this item using the past (b. item) and solving for the other leg revolution (3):

Then we will have:

Radius: 4

Height: 3

Then the volume of the cone is:

V=(1/3)*π*r^{2} *h= (1/3)*π*(4)^{2} *(3) = (1/3)*π*(16)*(3)=16 π

7 0

3 years ago

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Papessa [141]

Answer:

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Step-by-step explanation:

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3 years ago