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Snowcat [4.5K]
3 years ago
6

Question 1(Multiple Choice Worth 6 points)

Mathematics
2 answers:
ella [17]3 years ago
6 0

Answer:

Hence, the rate of change of f(x) from x=1 to x=3 is given by:

-4

Step-by-step explanation:

We have to find the rate of change of the function f(x) from x=1 to x=3 which is defined as:

f(x)=-(3)^{x-1}+3

The rate of change of the function f(x) from x=1 to x=3 is given by:

\dfrac{f(3)-f(1)}{3-1}

we know that:

f(1)=-(3)^{1-1}+3\\\\f(1)=-(3)^0+3\\\\f(1)=-1+3\\\\f(1)=2

Similarly,

f(3)=-(3)^{3-1}+3\\\\f(3)=-(3)^2+3\\\\f(3)=-9+3\\\\f(3)=-6

Hence, the rate of change is given as:

\dfrac{-6-2}{3-1}\\\\=\dfrac{-8}{2}\\\\=-4

Hence, the rate of change of f(x) from x=1 to x=3 is given by:

-4

maw [93]3 years ago
5 0
The rate of the change for the function between points x=1 and x=3 will be given by:
[f(3)-f(1)]/(3-1)
f(3)=-6
f(1)=2

thus the rate of change will be:
(-6-2)/(3-1)
=-8/2
=-4
Answer: -4
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An instructor gives a class a set of 10 problems and says that the nal exam will consist of a random selection of 5 of the probl
sweet-ann [11.9K]

Answer:

probability that he or she will answer at least 4 problems correctly = 0.5

Step-by-step explanation:

probability that he or she will answer at least 4 problems correctly is given as;

P (at least 4 correctly) = P (exactly 4 correctly) + P (all 5 correctly)

Since there are 10 problems. 4 is from the 7 problems chosen and 1 is from the 3 problems we can't figure out. Thus, P(exactly 4 correctly) = 7C4 x 3C1

Thus, P (at least 4 correctly) = [ (7C4) x (3C1) ] / (10C5)] + [(7C5)/(10C5)]

= [(35 x3)/252 ] + [21/252]

= [ 105/252 ] + [ 21/252 ]

= 126 / 252

= 0.5

8 0
3 years ago
Suppose the number of free throws in a basketball game by one player are normally distributed with a standard deviation 0.97 fre
babunello [35]

Answer: 1.960

Step-by-step explanation:

The value of z we use to calculate a confidence interval with a (1-\alpha) confidence level is a two-tailed test value i.e. represented by :-

              z_{\alpha/2}

Given : The level of confidence: 1-\alpha=0.95

Then, significance level : \alpha: 1-0.95=0.05

With the help of standard normal distribution table for z , we have

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.960

Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960

3 0
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PLEASE HELP ITS A TEST
xeze [42]
It is 180 because it rotates
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Please help fast with correct answer no guessing answer. Only answer if actually know the answer
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Answer:

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Step-by-step explanation:

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