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3 years ago

Write the following using algebraic notation using x as the unknown number:

Mathematics

1 answer:

andrew11 [14]3 years ago

3 0

2X-9 is this what you wanted

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If the area of the base of a rectangular prism is 35 square feet and the volume is 175 cubic feet, what is the height of the pri

Elis [28]

Answer:

5 ft

Step-by-step explanation:

area = L * W * H

35 = L * W

Volume = (L *W) * H

since we have already found that L * W is already 35

175 = 35 * H

Divide by 35 on both sides to get H

175/35 = 5

answer = 5 ft

7 0

3 years ago

How can I solve that

tia_tia [17]

B and for question 3 b

3 0

4 years ago

23 1/5 minus 19 1/5.

Strike441 [17]

Answer:

The answer is 4.

Step-by-step explanation:

Since the fractions have the same denominators, all you have to do is subtract 1/5 from 1/5. When you subtract the numerators (1-1) you get 0. That would make the fraction 0/5, but that does not have to be included in the answer since it has no value. Subtract the whole numbers (23-19) to get 4.

Hope I helped you out!

7 0

4 years ago

Read 2 more answers

Select the correct answer. A parabola has a minimum value of 0, a y-intercept of 4, and an axis of symmetry at x = -2. Which gra

ratelena [41]

Answer:

The third graph

Step-by-step explanation:

4 0

3 years ago

A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occ

Shkiper50 [21]

Answer:

a) The mean number of cases is 0.14608 cases.

b) The probability that the number of cases is exactly 0 or 1 is 0.990.

c) The probability of more than one case is 0.010

d) No, because the probability of more than one case is very small

Step-by-step explanation:

We can model this problem with a Poisson distribution, with parameter:

$\lambda=r*t=0.000011*13,280=0.14608$

a) The mean amount of cases is equal to the parameter λ=0.14608.

b) The probability of having 0 or 1 cases is:

$P(k=0)=\frac{\lambda^0 e^{-\lambda}}{0!}=\frac{1*0.864}{1} =0.864\\\\ P(k=1)=\frac{\lambda^1 e^{-\lambda}}{0!}=\frac{0.14608*0.864}{1} =0.126\\\\P(k\leq1)=0.864+0.126=0.990$

c) The probability of more than one case is:

$P(k>1)=1-P(k\leq 1)=1-0.990=0.010$

d) The cluster of 4 cases can not be due to pure chance, as it is a very high proportion of cases according to the average rate. Just having more than one case has a probability of 1%.

7 0

3 years ago