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3 years ago

The answer is C that’s why it has a 1 pt in front Plz just help me explain how to get that

Mathematics

1 answer:

Ierofanga [76]3 years ago

3 0

First lets get the formula for a triangular prism

$v =( \frac{1}{2} bh)h$

First lets plug in our numbers

$v =( \frac{1}{2} \times 7 \times 4)8.5$

It really doesnt matter how you multiply everything, but you end up with 119cubic feet.

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Colin always takes his laundry to the laundromat for cleaning. Today, he has 5 items for dry cleaning and 12 items for regular w

kari74 [83]

Answer: 7 1/2 pounds

Step-by-step explanation:

7 0

2 years ago

Assume that the probability of a defective computer component is 0.02. Components arerandomly selected. Find the probability tha

solmaris [256]

Answer:

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Step-by-step explanation:

Assume that the probability of a defective computer component is 0.02. Components are randomly selected. Find the probability that the first defect is caused by the seventh component tested.

First six not defective, each with 0.98 probability.

7th defective, with 0.02 probability. So

$p = (0.98)^6*0.02 = 0.0177$

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

Find the expected number and variance of the number of components tested before a defective component is found.

Inverse binomial distribution, with $p = 0.02$

Expected number before 1 defective(n = 1). So

$E = \frac{n}{p} = \frac{1}{0.02} = 50$

Variance is:

$V = \frac{np}{(1-p)^2} = \frac{0.02}{(1-0.02)^2} = 0.0208$

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

5 0

2 years ago

Work out the percentage change to 2 decimal places when a price of £70 is increased to £99

MaRussiya [10]

Answer:

41.43%

Step-by-step explanation:

Change:

99 - 70 = 29

% change:

29/70 × 100

= 41.42857143%

8 0

3 years ago

Two number differ by 3 The sum of their reciporcal is 7/10 find tge numbers

motikmotik

The numbers are 5 and 2.

Reciprocals: 5- 5/10
2- 2/10
(2/10)+(5/10)= 7/10
5-2= 3

Answer: 5 and 2

6 0

2 years ago

Read 2 more answers

Evaluate 18 + 4 ÷ 2 − 8. (5 points) Group of answer choices 2 8 12 3

cupoosta [38]

Answer:

=12

Step-by-step explanation:

See the steps below:)

5 0

2 years ago