Mathematics, 31.08.2019 15:30 emilyburrell575
The quadratic equation $y = x^2 + 5x + c$ has solutions in the form of $x = \frac{-5 \pm \sqrt{c}}{2}$. what is the value of $c$?
Answers: 1
Mathematics, 21.06.2019 18:10
Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12
Answers: 1
Mathematics, 22.06.2019 01:00
Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:
Answers: 3
Mathematics, 22.06.2019 03:50
Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.
Answers: 3
The quadratic equation $y = x^2 + 5x + c$ has solutions in the form of $x = \frac{-5 \pm \sqrt{c}}{2...
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