3 years ago

Could someone please explain how to do these!

1 answer:

8 0

Soh cah toa is your best friend in trig

sin(x) = opposite/hypotenuse
cos(x) = adjacent/hypotenuse
tan(x) = opposite/adjacent

X is opposite from 43 degrees.
16 is the hypotenuse because it’s the longest side.

We need to use sin(x) because we’re given the opposite/hypotenuse ratio.

For sin(x) plug in the angle for x:

sin(43) = X/16
Multiply both sides by 16.

X = 16*sin(43)
You can plug it into your calculator.

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The airplane Li’s family will be flying on can seat up to 149 passengers. If 96 passengers are currently on the plane, which ine

Ivenika [448]

For this case, the first thing you should do is define a variable.
We have then:
x: number of passengers remaining who can board the plane.
We have as data:
1) They can board up to 149 passengers
2) There are 96 passengers currently aboard.
Writing inequality we have:
$x + 96 \leq 149
$
Answer:
An inequality that can be used to determine how many more people can board is:
$x + 96 \leq 149$