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Stells [14]
3 years ago
6

Does the point (2

Mathematics
1 answer:
andrew11 [14]3 years ago
3 0
Hello Idk the answer I am really sorryy
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which answer describes the graph of the function f(x)=-2*3^√x? just incase this isn't clear the three is above the square root s
andrey2020 [161]
The function has a domain that goes from [0,∞]

And a range that goes from [-∞,0]

(
See attached graph)

8 0
3 years ago
Multiply: (5x − 2)(4x2 − 3x − 2)
Alex Ar [27]
Hello there!

(5x - 2)(4x² - 3x - 2)

Use the distributive property

=(5x)(4x²) + (5x)(-3x) + (5x)(-2) + (-2)(4x²) + (-2)(-3x)² + (-2)(-2)

= 20x³ - 15x² - 10x - 8x² + 6x + 4

= 20x³ - 23x² -4x + 4


As always, it is my pleasure to help students like you. Let me know if you have any questions.
3 0
2 years ago
Read 2 more answers
Suppose a bag contains many marbles, 54% of which are purple. You draw 5 marbles from the bag with replacement.
dolphi86 [110]

Part A

Use the binomial probability distribution formula.

p = 0.54 = probability of getting a purple marble

n = 5 = sample size

x = 2 = number of purple we want to get

P(x) = \frac{n!}{x!(n-x)!}*p^x*(1-p)^{n-x}\\\\P(2) = \frac{5!}{2!(5-2)!}*0.54^2*(1-0.54)^{5-2}\\\\P(2) = 10*0.54^2*0.46^3\\\\P(2) = 0.283831776\\\\

The \frac{n!}{x!(n-x)!} portion is from the nCr combination formula. The exclamation marks indicate a factorial.

Alternatively, you could use Pascal's Triangle for that portion.

<h3>Answer: 0.283831776</h3>

This decimal value is exact. Round it however you need to.

============================================================

Part B

To find the expected value, aka the mean, we multiply the sample size and probability of getting a purple marble on any single selection.

n*p = 5*0.54 = 2.7

<h3>Answer: 2.7</h3>
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2 years ago
A football team lost 9 yards on first down and 4 yards on second down. It gained 5 yards on third down. How many yards does it n
GenaCL600 [577]
<span>I Beileve It's 18 Yards</span>
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3 years ago
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What is the slop of the line y = 3
Otrada [13]

3/1 is the slope of the line

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2 years ago
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