Find the missing side and round to the nearest tenth

Mathematics

1 answer:

xxMikexx [17]3 years ago

5 0

In this problem you use cosine because you know the hypotenuse and you want to know the adjacent side of the triangle. So in your calculator you would input cos(52). Then you would multiply that answer with the hypotenuse side. So your equation would be this: cos(52) x 13

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B²+4 when b =-4..........

zalisa [80]

Answer:

Step-by-step explanation:

-4 x -4 = 16

16 + 4 = 20

Hope this helps. Pls give brainliest.

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3 years ago

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!HELP! SHOW WORK PLEASE SO I CAN UDNERSTAND!

Nata [24]

Ok.

The volume of a cone is the volume of a cylinder over 3.

The volume of a cone is:
$\frac{1}{3} \pi r^{2}h$

This problem gives us the diameter, which is twice of the radius. So, we'll just half it.
Radius (me) = 4 cm.

Substitute our given values into the equation.
$\frac{1}{3} \pi (4)^{2}h \ or \ \frac{1}{3} \pi (4)^{2}(10) \ or \ \frac{1}{3} \pi (16)(10)$

Multiply
$\frac{1}{3} \pi(160) \ or \ \frac{1}{3} (3.14)(160) \ or \ 1.047(160)$

Multiply
$167.52 \ cm^{3}$

This would make $167 \ cm^{3}$ the closest option.

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3 years ago

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What is the approximate surface area of the figure?

vampirchik [111]

Answer:

133.04 is the approximate answer

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3 years ago

Solving linear systems of substitution

never [62]

Example: 2x+2y=8 and 3y+2x=6
Okay so u first want to put on of the equations into a y= form. So let's use 3y+2x=6. Subtract 2x from both sides. 3y=6-2x divide by 3. Y= 6-2/3x or y= -2/3x + 6. Now just plug this new equation in for Y since "y=" into the other equation.
2x + 2(-2/3x + 6) = 8.
Then you would distribute the 2 into the parenthesis and simplify to solve for x.
After you solve for x, plug x into one of the original equations to find y.

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4 years ago

Help pls..... Answers: A.20.0 B.19.4 C.18.0 D.18.2

Misha Larkins [42]

I think it would be D

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4 years ago