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3 years ago

Find the missing side. Need help please.Need to know how to get the answer.

Mathematics

1 answer:

Rufina [12.5K]3 years ago

4 0

Answer:

x=7.12

Step-by-step explanation:

This is a trigonometry problem so you would use sin cos or tan. and in this case we need to use sin.

An acronym I use to help me remember is is sohcahtoa

so sin= opposite / hypotenuse

and that means sin(22)= x/19

we then plug in sin (22) in out calculator and get around .37

then we can use algebra and multiply .37 by 19 to get our x value

.37(19)=x

x=7.12

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Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter

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Answer:

Dimensions: $A=a\cdot b=256$

Perimiter: $P=2a+2b$

Minimum perimeter: [16,16]

Step-by-step explanation:

This is a problem of optimization with constraints.

We can define the rectangle with two sides of size "a" and two sides of size "b".

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To optimize we can derive the function and equal to zero.

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3 years ago

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Answer:

8/5

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