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Aloiza [94]
3 years ago
8

What is the value of X?

Mathematics
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

x = 98 mm

Step-by-step explanation:

129.2 / 68 = 57 / (x - 68)

Cross multiply

129.2(x - 68) = 68 * 57

129.2x - 8785.6 = 3876

129.2x = 12661.6

        x = 12661.6 / 129.2

        x = 98

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15-2x=-7x what does x equal
Degger [83]

Answer:

x = -3

Step-by-step explanation:

15 - 2x = -7x

add 2x

15 = -5x

divide by -5

-3 = x

4 0
3 years ago
What is the value of sin-1(1)? negative startfraction pi over 2 endfraction 0 startfraction pi over 2 endfraction π
mariarad [96]

The value of sin-1(1) is negative startfraction pi over 2 endfraction, startfraction -pi over 2 endfraction.

<h3>What is the value of sin (π/2)?</h3>

The value of sin (π/2) is equal to the number 1. The value of the sin-1(1) has to be find out.

Suppose the value of this function is <em>x</em>. Thus,

x=\sin^{-1}(1)

Solve it further,

\sin(x)=(1)              ......1

The value of sin (π/2) and -sin (-π/2) is equal to 1 such that,

\sin\dfrac{\pi}{2}=-\sin\left(-\dfrac{\pi}{2}\right)=1

Put this value in the equation 1,

\sin(x)=\sin\left(\dfrac{\pi}{2}\right)=-\sin\left(-\dfrac{\pi}{2}\right)

Thus, the range will be,

\left(\dfrac{\pi}{2},-\dfrac{\pi}{2}\right)

Thus, the value of sin-1(1) is negative startfraction pi over 2 endfraction, startfraction -pi over 2 endfraction.

Learn more about the sine values here;

brainly.com/question/10711389

3 0
2 years ago
Need help please!!!!
r-ruslan [8.4K]

Answer:

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7 0
2 years ago
20 POINTS! HELP PLEASE!
nevsk [136]

Answer:

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Step-by-step explanation:

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