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3 years ago

Which point lies on the graph of f(x) = -2(x + 3) – 5

Mathematics

2 answers:

Assoli18 [71]3 years ago

8 0

well from my understanding of the problem and calculations i would say.. (-5.5,0)

Ilia_Sergeevich [38]3 years ago

6 0

The answer is a (-6, 1). Because what you do is plug the points back in. So, it would be 1 = -2(-6+3)-5 and that is the only one proven true.

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If you have a chance to win $500 for drawing a card of 10 of any suit from a standard deck of cards, what is the value of expect

Dimas [21]

The expected value is $38.46.

The probability of drawing a 10 from any suit is 4/52. Multiply this by the earnings, 500:

4/52(500) = 2000/52 = 38.46

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%20%7B%2018%20%5E%20%7B%20n%20%2B%201%20%7D%20%5Ctimes%203%20%5E%20%7B%201%20-%20n%20%7

Rufina [12.5K]

Answer:

$4 \times {3}^{n + 3}$

Step-by-step explanation:

$\frac{ {18}^{n + 1} \times {3}^{1 - n}}{ {2}^{n - 1} }$

$\frac{ {3}^{2n + 2} \times {2}^{n + 1} \times {3}^{1 - n} }{ {2}^{n - 1} }$

${3}^{2n + 2} \times {2}^{2} \times {3}^{1 - n}$

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8 0

3 years ago

Read 2 more answers

Hello everyone, I hope you had a great day, I need help on this please, thanks.

Shalnov [3]

Answer:

Step-by-step explanation:

A. is the only correct solution to this question because you can also see that if we take 8 and divide this by 32 we get 1/4, so we know it is true.

4 0

2 years ago

Read 2 more answers

Solve this equationn 5w=17.5

Alchen [17]

Answer:

w = 3.5

Step-by-step explanation:

w = 3.5?

4 0

2 years ago

A certain rumor spreads through a community at the rate dy/dt= 2y(1−y) , where y is the proportion of the population that has he

ss7ja [257]

Answer:

1/2 or 50% of the population has heard the rumor when it is spreading fastest.

Step-by-step explanation:

We need to take the derivative with respect to y from the r(y) = dy/dt = 2y(1-y) and equal to zero. At this condition we maximize the function and will get the maximum of the rumor spreading.

$\frac{d(r(y))}{dy}=2-4y=0$

Therefore we just need to find y:

$y=2/4=1/2$

So 1/2 or 50% of the population has heard the rumor when it is spreading fastest.

I hope it helps you!

3 0

3 years ago