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spin [16.1K]
2 years ago
9

I need help plz answer

Mathematics
2 answers:
babymother [125]2 years ago
8 0

Answer:

16

Step-by-step explanation:

do the parentheses first to get 4

8/2 x 4

4 x 4

16

algol [13]2 years ago
6 0

16 is the answer...

8÷2 × 2+2=4

4×4 = 16

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A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identi
Tcecarenko [31]

Answer:

a. 0.1536

b. 0.9728

Step-by-step explanation:

The probability that a component fails, P(Y) = 0.2

The number of components in the system = 4

The number of components required for the subsystem to operate = 2

a. By binomial theorem, we have;

The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) is given as follows;

P(Y = 2) = \dbinom{4}{2} × 0.2² × 0.8² = 0.1536

The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) = 0.1536

b. The probability that the system last longer than 1,000 hours, P(O) = The probability that no component fails + The probability that only one component fails + The probability that two component fails leaving two working

Therefore, we have;

P(O) = P(Y = 0) + P(Y = 1) + P(Y = 2)

P(Y = 0) = \dbinom{4}{0} × 0.2⁰ × 0.8⁴ = 0.4096

P(Y = 1) = \dbinom{4}{1} × 0.2¹ × 0.8³ = 0.4096

P(Y = 2) = \dbinom{4}{2} × 0.2² × 0.8² = 0.1536

∴ P(O) = 0.4096 + 0.4096 + 0.1536 = 0.9728

The probability that the subsystem operates longer than 1,000 hours = 0.9728

4 0
2 years ago
I need to know how to do these asap!!
ludmilkaskok [199]

Answer:


Step-by-step explanation:

y =4/3 x+4

slope intercept form

y = mx+b

the y intercept is 4  (0,4)

and the slope is 4/3  which is change in y over change in x

we go up 4 to the right 3

we can rewrite the slope as -4/-3

so we can go down 4 and to the left 3

this would be point (-3,0)


we have 2 points marked, now draw a line throught them


8 0
3 years ago
What is the probability of choosing a red card from a deck of cards? Type your answer as a fraction.
siniylev [52]

Answer:

26/52 or 1/2

Step-by-step explanation:

There are 1-9, King, Queen, Jack, for both Diamonds and Hearts

6 0
3 years ago
I WILL MAKE BRAINLEST!!!!!!
frozen [14]

Answer:

\sqrt{\frac{9}{4}} < \frac{5}{3} < \sqrt{5} < 2.5

Step-by-step explanation:

Given the following numbers, \sqrt{\frac{9}{4}}, \sqrt{5}, 2.5, and, \frac{5}{3}, let's express each as whole or decimal numbers, to find out the least to the greatest.

\sqrt{\frac{9}{4}} = \frac{\sqrt{9}}{\sqrt{4}}

\frac{3}{2} = 1.5

\sqrt{5} ≈ 2.2

2.5 (already in decimal form)

\frac{5}{3} ≈ 1.7

From the least to the greatest, we have:

\sqrt{\frac{9}{4}} < \frac{5}{3} < \sqrt{5} < 2.5

3 0
3 years ago
if a car travels 25 miles in 1 hour which table shows D the distance in miles that it can travel in. help me
g100num [7]
17 it the answer do it
3 0
3 years ago
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