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nikklg [1K]
3 years ago
11

Which equation is the inverse of y =2x^2 - 8?

Mathematics
2 answers:
algol [13]3 years ago
7 0

Answer:

a

Step-by-step explanation:

Zigmanuir [339]3 years ago
6 0
Find the volume. Round your answer to the nearest tenth and show your work
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U = 4i + 9j<br> 8= -8j<br> Find: u +g
weeeeeb [17]

Answer:

4i + j

Step-by-step explanation:

I think you meant g instead of 8.

Given:

u = 4i + 9j

g = -8j

u + g

(4i + 9j)  + (-8j)

4i + j

5 0
3 years ago
a student achieved the following grades on his tests :87,95 ,76 and 88 percent . he wants 85 percent or better overall . what gr
m_a_m_a [10]

Answer:

Step-by-step explanation:

87+95+76+88+x/5=85

346+x=85x5

x=425-346

x=79

4 0
3 years ago
Read 2 more answers
a certain pharmaceutical company know that, on average 4% of a certain type of pill has an ingredient that is below the minimum
FinnZ [79.3K]

Using the binomial distribution, it is found that there is a 0% probability that fewer that 5 in a sample of 20 pills will be acceptable.

For each pill, there are only two possible outcomes, either it is acceptable, or it is not. The probability of a pill being acceptable is independent of any other pill, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • The sample has 20 pills, hence n = 20.
  • 100 - 4 = 96% are acceptable, hence p = 0.96

The probability that <u>fewer that 5 in a sample of 20 pills</u> will be acceptable is:

P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{20,0}.(0.96)^{0}.(0.04)^{20} = 0

P(X = 1) = C_{20,1}.(0.96)^{1}.(0.04)^{19} = 0

P(X = 2) = C_{20,2}.(0.96)^{2}.(0.04)^{18} = 0

P(X = 3) = C_{20,3}.(0.96)^{3}.(0.04)^{17} = 0

P(X = 4) = C_{20,4}.(0.96)^{4}.(0.04)^{16} = 0

0% probability that fewer that 5 in a sample of 20 pills will be acceptable.

A similar problem is given at brainly.com/question/24863377

8 0
2 years ago
Write down a division with an answer of 0.713
chubhunter [2.5K]
Notice, 3 decimals, so, we can just use 3 zeros, thus

\bf 0.\underline{713}\implies \cfrac{0713}{1\underline{000}}\implies \cfrac{713}{1000}\implies 713\div 1000
3 0
3 years ago
Determine if the two triangles are congruent. If they are, state how you know.
KIM [24]

Answer:

Well i dont know what all the sides/angles are called but no they are not congruent.

Step-by-step explanation:

Congruent, means for the 2 objects, shapes, etc. to be exactly the same. If you look at the triangles, they are not the same shape of triangle.

7 0
3 years ago
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