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Anon25 [30]
3 years ago
13

Find the value of (- 7) +(-8)​

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Step-by-step explanation:

Given

(-7) + ( -8)

= -7 - 8

= -15

Hope it helps :)

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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

3 0
3 years ago
A line passes through the point (5, 1) and is perpendicular to the x-axis. What is the slope of this line?
Rufina [12.5K]
No because if that happened they wouldn’t be able to do it again so yeah
7 0
3 years ago
How to convert 655.575 to word form?
Leni [432]
Six hundred fifty five thousand five hundred seventy five

6 0
3 years ago
Please help me out it doesn’t have to be the hole page but please help!:(
77julia77 [94]

You're going to have to take a better quality picture. I don't think anyone can reliably read any of that

6 0
1 year ago
Two cyclists start from the same point at the same time and move in opposite directions. One cyclist is traveling at 7 mph, and
ivolga24 [154]

Answer:

d = 4 miles

Step-by-step explanation:

combined speed = 7 + 9 = 16 mph

s = d/t

d = st

d = 16 miles/hr × 0.25 hr

d = 4 miles

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5 0
2 years ago
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