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2 years ago

What is the value of : 7+8×2-6+3

Mathematics

2 answers:

Lera25 [3.4K]2 years ago

8 0

Answer:

The value is 20.

Step-by-step explanation:

To solve this equation, you must use the method of PEMDAS. In this order, you should multiply 8 by 2 first to get 16 for the first part of your answer. Your equation should now be 7 + 16 - 6 + 3. You can now solve this equation from left to right manually. Add 16 from 7 to get 23, subtract 6 from that number to get 17 and add 3 to get your final answer which is 20.

Murljashka [212]2 years ago

4 0

Answer:

27 :)

Step-by-step explanation:

7+8=15

15x2=30

30-6=24

24+3=27

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Among 6 electrical components exactly one is known not to function properly. If 2 components are randomly selected, find the pro

Oksanka [162]

Answer:

66.67% probability that all selected components function properly

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the components are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

In this question:

Desired outcomes:

2 components which function properly, from a set of 5. So

$D = C_{5,2} = \frac{5!}{2!(5-2)!} = 10$

Total outcomes:

2 components, from a set of 6. So

$T = C_{6,2} = \frac{6!}{2!(6-2)!} = 15$

Probability:

$p = \frac{D}{T} = \frac{10}{15} = 0.6667$

66.67% probability that all selected components function properly

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3 years ago

complete the solution of the equation. Find the value of y when x equals 9. 3x + 4y = 43 Enter the correct answer.

3241004551 [841]

3(9)+4y=43
27+4y=43
4y=16
Y=4

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3 years ago

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Read 2 more answers

Solve N/3 + (-4)=-2. A. 6 B. -18 C. 18 D. -2

Nana76 [90]

Answer:

A) 6

Step-by-step explanation:

n/3+(-4)=-2

n/3-4=-2

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3 years ago