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3 years ago

Write the equation of a line that is vertical and goes through the point (4,-2)

Mathematics

1 answer:

attashe74 [19]3 years ago

6 0

Answer:

x = 4

Step-by-step explanation:

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Pls help<br><br> Zzzzzzzzzzzzzzzzzzzzzzzz

babunello [35]

Answer:

d po yung answer

Step-by-step explanation:

sana makatulong

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3 years ago

It is known that 10% of the items produced by a certain machine end up having a flaw. If we select 7 items from the production l

denpristay [2]

Step-by-step explanation:

p = 0.1, q = 0.9, n = 7

a) Use complementary probability.

P(at least 1) = 1 − P(0)

P(at least 1) = 1 − (0.9)⁷

P(at least 1) = 0.522

b) Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

P(3) = ₇C₃ (0.1)³ (0.9)⁴

P(3) = 0.023

6 0

3 years ago

What are 2 ways to solve the problem 9×1×5 = ?

aliina [53]

2ways you can solve that is by multiplying 9 by 1 then by 5 or 9by 5 then by 1

6 0

3 years ago

12.what is the probability that a boy and a girl chosen randsomly will be seniors?

zhenek [66]

$\frac{\textbf{1}}{\textbf{20}}$

Step-by-step explanation:

Probability= $\frac{\text{number of favourable outcomes}}{\text{total number of outcomes}}$

Probability for a randomly chosen girl to be senior= $\frac{\text{number of senior girls}}{\text{total number of girls}}$

Probability for a randomly chosen girl to be senior= $\frac{7}{8+11+9+7}=\frac{7}{35}=\frac{1}{5}$

Probability for a randomly chosen boy to be senior= $\frac{\text{number of senior boys}}{\text{total number of boys}}$

Probability for a randomly chosen girl to be senior= $\frac{9}{10+7+10+9}=\frac{9}{36}=\frac{1}{4}$

For two independent events,

Probability for both event 1 and event 2 to take place= $\text{probability of event 1} \times \text{probability of event 2}$

Since choosing boys and girls is independent,

Probability for both boy an girl chosen to be senior= $\text{probability for boy to be senior}\times\text{probability for girl to be senior}$

Probability for both boy and girl chosen to be senior= $\frac{1}{5} \times \frac{1}{4} = \frac{1}{20}$

So,required probability is $\frac{1}{20}$

3 0

3 years ago

What’s the answer????

BlackZzzverrR [31]

Answer:

1. 0.6

2. 0.25

Step-by-step explanation:

because math

7 0

3 years ago