<h2><em><u>Answ</u></em><em><u>er</u></em><em><u>:</u></em><em><u>-</u></em></h2>
★ Input of the given function F(x) is 5.
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<h3>• <u>Given</u><u>:</u><u>-</u></h3>
✯ F(x) = 7x - 9
✯ Output = 26
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<h3>• <u>Solution</u><u>:</u><u>-</u></h3>
According to the question the output is 26.
Hence, the above data can be written in an equation form.
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➪ F(x) = 7x - 9 = 26
➪ 7x = 26 + 9
➪ 7x = 35
➪ 
➪ 
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Therefore, F(x) = 5
Answer:
x = 8/5
Step-by-step explanation:
Cross multiply
5(x + 2) = 3 * 6
5x + 10 = 18
5x = 8
x = 8/5
Consider right triangle RQT. In this triangle
, then
. Thus the triangle RQT is isosceles and RQ=RT=x.
Consider right triangle RST. In this triangle
, then
. The leg ST is opposite to the angle of 30°, so
.
For the right triangle RTS use the Pythagorean theorem:

.
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Answer:<span> x=2 units.</span></span>