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Brums [2.3K]
2 years ago
11

Select the action you would use to solve 3x = 12. Then select the property

Mathematics
1 answer:
podryga [215]2 years ago
3 0

Answer:

C: Divide both sides by 3

F: Division property of equality

Step-by-step explanation:

3x=12\\x=\frac{12}{3}\\x=4

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The time X it takes Hattan to drive to work on a randomly selected day follows a distribution that is approximately Normal with
alexdok [17]

Answer:

Shape: Approximately Normal

Center: 20 minutes

Variability: 6.5 minutes.

4 0
3 years ago
Write the equation for a parabola with a focus at (0,-5) and a directrix at y=-3
Olenka [21]
-4y -16 = x^2
All done
7 0
3 years ago
What is the volume of a sphere with radius of 16 inches?
matrenka [14]
Volume =
\frac{4}{3} \pi {r}^{3}  \\  =  \frac{4}{3}  \times 3.14 \times  {16}^{3}  \\  = 17148.59 \  {in}^{3}

The answer is the first option.

Hope this helps. - M
8 0
3 years ago
Read 2 more answers
5 + (-3) is units from 5 in which direction
Ymorist [56]

Answer:

Step-by-step explanation:

Starting at 5 on the number line, 5 + (-3) is 3 units to the left of 5; that is, you are at 2 on the number line.

4 0
2 years ago
Suppose the number of messages that an inbox receives may be modeled by a Poisson distribution. If the average number of message
docker41 [41]

Answer:

0.36427

Step-by-step explanation:

Mean = λ = 18 messages per hour

P(X = x) = (e^-λ)(λ⁻ˣ)/x!

P(X ≤ x) = Σ (e^-λ)(λ⁻ˣ)/x! (Summation From 0 to x)

But the probability required is that the messages thay come in an hour is between 15 and 20, that is, P(15 < X < 20)

P(15 < X < 20) = P(X < 20) - P(X ≤ 15)

These probabilities will be evaluated using a cumulative frequency calculator.

P(X < 20) = 0.65092

P(X ≤ 15) = poissoncdf(18, 15) = 0.28665

P(15 < X < 20) = P(X < 20) - P(X ≤ 15) = 0.65092 - 0.28665 = 0.36427.

You can use the Poisson distribution calculator here

https://stattrek.com/online-calculator/poisson.aspx

4 0
2 years ago
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