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Olegator [25]
4 years ago
8

-4.75 + (-2.75) + 1

Mathematics
2 answers:
scZoUnD [109]4 years ago
6 0
-6.5 because -4.75 + (-2.75) + 1 =
-3.75 -2.75 which is equal to -6.5
Ket [755]4 years ago
4 0

Answer:

-6.5

Step-by-step explanation:

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A firm maintains 22 cars for business purposes. From past experience, it is known that approximately 10% will require major engi
seropon [69]

Answer:

The probability that at most 1 car will require major engine repair next year is P=0.3392.

Step-by-step explanation:

This can be modeled as a binomial random variable, with n=22 and p=0.1.

The probability that exavtly k cars will require major engine repair next year is:

P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}

Then, the probability that at most 1 car will require major engine repair next year is:

P(x\leq1)=P(x=0)+P(x=1)\\\\\\P(x=0) = \dbinom{22}{0} p^{0}(1-p)^{22}=1*1*0.0985=0.0985\\\\\\P(x=1) = \dbinom{22}{1} p^{1}(1-p)^{21}=22*0.1*0.1094=0.2407\\\\\\P(x\leq1)=0.0985+0.2407\\\\P(x\leq1)=0.3392

3 0
3 years ago
There are three exams in your linear algebra class, and you theorize that your score in each exam (out of 100) will be numerical
Romashka [77]

Answer:

a) 40 hours

b) 60 hours

C) 100 hours

Step-by-step explanation:

0.2a + 0.3b+0.5c = 76

Hence: 0.2* (0.2 λ) +0.3*(0.3 λ )+0.5*(0.5 λ ) = 76

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Thus : 40, 60, 100

7 0
3 years ago
Someone please help ASAP will give brainliest
Art [367]

Answer:

y< -3/2x-2

Step-by-step explanation:

if you look at the graph, you can see the line is dotted, which means it is not equal to. eliminate a and c. the shade is toward the bottom of the y, which then you could eliminate a because b says the y value is greater than, which isn't true. you could also check it by plugging in any value for x!

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6 0
3 years ago
7x +4 what property is it
Anni [7]

Answer:

commutative property of multiplication

Step-by-step explanation:

8 0
3 years ago
A submarine is650 feet below sea level. If it defends 400 feet, which integer represents its new position
Musya8 [376]

Answer:

-1050

Step-by-step explanation:

-650+(-400)=-1050

We use negatives to show it is below sea level

7 0
3 years ago
Read 2 more answers
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