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RUDIKE [14]
3 years ago
15

Does the function f(x) = 7^x+ 3 represent exponential growth, decay, or neither?

Mathematics
1 answer:
Alika [10]3 years ago
5 0
D) the answers growth because when the number 7 (in that position) is raised to a power it will grow at the rate of 7 to the power of (x)
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Add an intersection the red light times normally distributed by the mean of three minutes and a standard deviation of .25 minute
Soloha48 [4]

95% of red lights last between 2.5 and 3.5 minutes.

<u>Step-by-step explanation:</u>

In this case,

  • The mean M is 3 and
  • The standard deviation SD is given as 0.25

Assume the bell shaped graph of normal distribution,

The center of the graph is mean which is 3 minutes.

We move one space to the right side of mean ⇒ M + SD

⇒ 3+0.25 = 3.25 minutes.

Again we move one more space to the right of mean ⇒ M + 2SD

⇒ 3 + (0.25×2) = 3.5 minutes.

Similarly,

Move one space to the left side of mean ⇒ M - SD

⇒ 3-0.25 = 2.75 minutes.

Again we move one more space to the left of mean ⇒ M - 2SD

⇒ 3 - (0.25×2) =2.5 minutes.

The questions asks to approximately what percent of red lights last between 2.5 and 3.5 minutes.

Notice 2.5 and 3.5 fall within 2 standard deviations, and that 95% of the data is within 2 standard deviations. (Refer to bell-shaped graph)

Therefore, the percent of  red lights that last between 2.5 and 3.5 minutes is 95%

8 0
3 years ago
Nathan is organizing textbooks on his bookshelf. He has a Spanish textbook, a math
Ghella [55]

Answer:

6 ways

Step-by-step explanation:

Given:

Books: Spanish, Maths and History textbooks (1 each)

Required

Determine the number of arrangements

In total, Nathan has 3 books.

The number of arrangements (n) is as follows:

The first book can be lined in 3 ways

The second book can be lined in 2 ways

The third book can be lined in 1 way

So,

n = 3 * 2 * 1

n = 6

3 0
2 years ago
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If a game consists of picking a number from a bag of beans numbered 2, 2, 3, 4, and 5 and flipping a coin, which probabilities a
White raven [17]

Answer:

I say C. Because 2 shows up twice for the bag of beans

Step-by-step explanation:

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2 years ago
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Find the ratio and unit rate.<br> 216 cherry pieces in 6 bags of candy
Charra [1.4K]

Answer:

216:6 ratio

36 rate

Step-by-step explanation:

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3 years ago
Which equation would you use to find the distance between point A and point H?
andreev551 [17]
B -4-1 because the one is positive and the 4 is negative
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2 years ago
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