Questions asked
Find the following for the function $f(x) = 4x^2 + 2x - 3$. (a) $f(0)$ (e) $-f(x)$ (b) $f(2)$ (f) $f(x+2)$ (c) $f(-2)$ (g) $f(5x)$ (d) $f(-x)$ (h) $f(x+h)$ (a) $f(0) = \Box$ (Simplify your answer.)
What characteristic of the DNA differs from one type of organism to another? Group of answer choices H-bonded anti parallel strands nucleotide sequence double helix shape alternating sugar & phosphate along a strand
Imagine that the economy is really booming. Everyone has a job and money in their pocket. What will be the impact on airline travel?
9. A biased coin with P(H) = 0.4, and P(T) = 0.6 is tossed twice. The tree diagram of sample space is given below: Coin flipping H T 0.4 0.6 H T 0.4 0.6 0.4 0.6 H T H T HH HT TH TT (a) (3 points) Find the probability of getting exactly one tail. (a) (b) (3 points) Find the probability of getting at least one tail. (b)
A230 V shunt excited motor delivers 30 HP at 1120 rpm. If the motor has an efficiency of 87% at this load, determine; a- the total input power(7.5 p) b- line current(7.5 p) c- if the torque lost due to friction and windage is 7% of the shaft torque, calculate developed torque.(7.5 p)
10. Fill in the missing value of this matrix so that it does not have an inverse.\\ $\begin{bmatrix} 1 & 0 & 2 \\ 4 & 1 & 8 \\ -2 & 5 & ? \end{bmatrix}$
8. If I am using an x-ray with awavelength of 0.15nm and I get a single peak at 2\theta = 42", what is the atomic radius if the structure is BCC (assume d spacing will be between (011) planes)? Bragg's law, $\eta\lambda = 2d \sin(\theta)$, choose n=1.Also use the d spacing equation.
If sales are $827,000, variable costs are 71% of sales, and operating income is $202,000, what is the contribution margin ratio? a. 67% b. 33% c. 71% d. 29%
A firm produces 8 unit(s) with a total cost (TC) of 83.928. Its TC at 9 units is 90.514, while its VC at 9 is 57.514. This means that A. the average fixed costs (AFC) of 9 units is 12 B. the marginal cost (MC) of the unit 9 is 9.202 C. the average fixed costs (AFC) of 8 unit(s) is 4.125 D. the average variable costs (AVC) of 9 units is going to be 12
3 ft, z A 3 ft D F<sub>BA</sub> 7 ft C 3 ft B x y
