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3 years ago

Can someone help me on 5?

Mathematics

1 answer:

galina1969 [7]3 years ago

8 0

I think you do 5280 divided by 7.85

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The entire graph of the function h is shown in the figure below. Write the domain and range of h using interval notation.

LiRa [457]

Answer:

(A) Domain : (-4, 3]

(B) Range : [ -2, 4)

5 0

3 years ago

Simplify and write as a decimal.

oksian1 [2.3K]

11.9

i just got it right on a quiz so yeah

6 0

4 years ago

Help! ASAP PLEASEEE

jarptica [38.1K]

Answer:

Week and a day

Step-by-step explanation:

You have $30, you save $5 each week and your aunt gives you an extra $10. Equaling out to $15 per week. Since the bike costs $155.75, you subtract your $30, coming out to 125.75 then you divide it by 15 which is 8 days

8 0

4 years ago

Read 2 more answers

A box contains four bowling balls numbered 2, 4, 6, and 10 according to their weight. Two are drawn randomly without replacement

Lilit [14]

Answer:

E(M) = 23/3

Var(M) = 53/9.

Step-by-step explanation:

There are three possible values for M: 4, 6, and 10.

$\begin{array}{|l|l|}\cline{1-2}\\[-1em]\text{Larger Number} & \text{Smaller Number}\\ \cline{1-2}\\[-1em]4 & 2 \\\cline{1-2}\\[-1em]6 & 2, ~4\\\cline{1-2}\\[-1em] 10 & 2, ~4, ~6\\\cline{1-2} \end{array}$ .

That's six unique combinations in total. If the balls are drawn randomly, the probability for getting each combination shall be equal. That is:

$\begin{array}{|c|c|}\cline{1-2}\\[-1em]m & P(\text{M} = m)\\\cline{1-2}\\[-1em] 2 & 0\\\cline{1-2}\\[-1em] 4 & 1/6 \\\cline{1-2}\\[-1em] 6 & 2/6\\\cline{1-2}\\[-1em] 10 & 3/6\\\cline{1-2}\end{array}$ .

Consider the formula for the expected value of a discrete random variable:

$\begin{aligned} E({\rm M})& = \sum{[m \cdot P(\mathrm{M} = m)]}\\ &= 4 \times \frac{1}{6} + 6\times \frac{2}{6} + 10 \times \frac{3}{6}\\ &= \frac{23}{3}\end{aligned}$ .

Formula for the variance of a discrete random variable (note that this formula can take many other forms):

$\begin{aligned}Var(\mathrm{M}) &= \sum{[m^{2}\cdot P(\mathrm{M}= m)]} - \mu^{2}\\&= 4^{2}\times \frac{1}{6} + 6^{2} \times \frac{2}{6} + 10^{2} \times \frac{3}{6} - \left(\frac{23}{3}\right)^{2}\\&= \frac{53}{9}\end{aligned}$ .

5 0

3 years ago

The person, who is 5 feet tall, wants to calculate the height of the flagpole. Use proportions to solve the problem. Show your w

Lisa [10]

Answer:

15 ft

Step-by-step explanation:

using geometry, we can find that the triangles are proportional, so if 8:24::5:15. 24/8=3, so do 5×3

7 0

3 years ago