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4 years ago

Solve G(x) for the given domain. G(x) = 3x 2 - 2x - 1 G(6) = 287 95 23

Mathematics

1 answer:

tamaranim1 [39]4 years ago

4 0

What is after 3x _ 2

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Suppose A = {2,5,7,9,13, 25, 26).<br>(a) Find n(A).<br>n(A) =<br>(b) T/F: 7. A

charle [14.2K]

Answer:

a) n (A) = 7

Step-by-step explanation:

Here, set A = {2,5,7,9,13, 25, 26)

Noe, for any set A,

n (A) is defined as he total number of elements in the set A.

or, n(A) = CARNALITY OF SET A

Here,the number of elements in set A = 7

⇒ n (A) = 7

6 0

3 years ago

The time needed to complete a final examination in a particular college course is normally distributed with a mean of 79 minutes

bagirrra123 [75]

Answer: a) 0.0088

b) 0.2997

c) 5

Step-by-step explanation:

Given : Mean : $\mu = 79$ minutes

Standard deviation : $\sigma = 8$ minutes

The formula for z-score :

$z=\dfrac{x-\mu}{\sigma}$

a) For x = 60 minutes

$z=\dfrac{60-79}{8}=-2.375$

The p-value = $P(z\leq-2.375)=0.0087745\approx0.0088$

b) For x = 75 minutes

$z=\dfrac{75-79}{8}=-0.5$

The p-value = $P(60$

$=P(-0.5)-P(-2.375)=0.3085-0.0088=0.2997$

c) For x = 90 minutes

$z=\dfrac{90-79}{8}=1.375$

The p-value = $P(z>1.375)=1-P(z$

$=1-0.9154342=0.0845658$

If the number of students in the class = 60 .

Then , the number of students will be unable to complete the exam in the allotted time = $0.0845658\times60=5.073948\approx5$

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3 years ago

What type of angle is shown below?

iren2701 [21]

The answer would be acute because it is an angle less than 90 degrees

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2 years ago

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Simplify this question

Luba_88 [7]

$3 + \sqrt{ - 12} \\ = 3 + \sqrt{ 2 \times 2 \times - 3} \\ = 3 + 2 \sqrt{ - 3}$

Hope you could get an idea from here.

Doubt clarification - use comment section.

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3 years ago

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ASAP if you could.<br>,What is 60 percent of 92?

lord [1]

Answer:

55.2

Hope that helps

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3 years ago

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