If y(x) = 2x-5, then f(4) is A. 17 B.5 C.4 D.3
1 answer:
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Answer:
x = ±
Step-by-step explanation:
Given
2x² - 9 = 11 ( add 9 to both sides )
2x² = 20 ( divide both sides by 2 )
x² = 10 ( take the square root of both sides )
x = ± ← exact solutions
<span>Given that the average
time it takes to replace a defective car radiator is 70 minutes with a
standard deviation of 12 minutes.
The 90% confidence interval of a random sample of 50 is given by
</span>
The 90% confidence interval of a random sample of 50 is given by
Answer:
x = /13 ≈ 0.48
Step-by-step explanation:
13x² = 3
x² = 3/13
rationalize the denominator
x = /13