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kupik [55]
3 years ago
9

Let F(x)=3x-1,h(x)=-x+5 find (f•h)(-2)

Mathematics
1 answer:
vovangra [49]3 years ago
4 0

Answer:

8

Dont mind me if i am wrong!

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Forty-five percent of the 300 shoppers in a supermarket bought milk. How many of the shoppers in a supermarket bought milk?
Orlov [11]
Turn 45% into a decimal.  You get 0.45,  because you move the decimal two places to the left.

Then multiply 300*0.45
You get 135

135 Shoppers in the supermarket bought milk.
7 0
3 years ago
Is 4286 divisible by 6
grigory [225]
No.
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3 years ago
Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha
mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

No of trails n = 200

Thus we have

p=\frac{80}{200}=0.4

The deviation is related to expected value and probability as

\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9

Thus the values between the given deviation is

x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25

Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

5 0
3 years ago
A chemistry professor who teaches a large lecture class surveys his students who attend his class about how he can make the clas
Iteru [2.4K]

Answer:

a.

Step-by-step explanation:

I believe it's Voluntary Response Bias

7 0
3 years ago
A car has a 15 gallon gas tank. If a car gets 32 miles per gallon and travels 384 miles, how much gas will be left in the tank?
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96 miles left in the gas tank
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