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wlad13 [49]
3 years ago
14

Which statement describes the sequence −9, −3, 3, 9, 15?

Mathematics
2 answers:
Arada [10]3 years ago
6 0
C. An arithmetic sequence with common difference 6
Natasha_Volkova [10]3 years ago
3 0

Answer:

C. An arithmetic sequence with a common difference of 6.

Step-by-step explanation:

A is incorrect because the common difference is not -9 (not constant).

B is incorrect because the common difference is not 3 (not constant).

C is the correct answer because the common difference is 6 (constant).

D is incorrect because this is an arithmetic sequence.

-------------------------------------------------------------------------------------------------------

-9 + 6 = -3

-3 + 6 = 3

3 + 6 = 9

9 + 6 = 15

The common difference is +6 (positive 6).

Hope that helps!

Please give me Brainliest!?!?

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The angle of the elevation from the top of a 95 Todd building into a hot air balloon in the sky and 76° if the horizontal distan
AnnZ [28]

Answer:

The height of the hot air balloon is 1514.54 feet approximately.

Step-by-step explanation:

Consider the provided information.

The angle of elevation from the top of a 95-foot tall building to a hot air balloon in the sky is 76. If the horizontal distance between the building and the hot air balloon is 354 feet, find the height of the hot air balloon

The figure is shown below:

Let the height of the balloon is AD, the height of the building is BC.

Draw a line BE parallel to CD.

Therefore, AD=x+95, BC=95 and BE=CD=354 ft

Now in triangle ABE.

\tan\theta=\dfrac{\text{Opp}}{\text{Adj}}

\tan76^{\circ}=\dfrac{AE}{BE}

AE\approx 4.01\times 354

AE\approx 1419.54

The height air balloon is 1419.54+95 =1514.54 ft

Hence, the height of the hot air balloon is 1514.54 feet approximately.

7 0
3 years ago
Round 6,877 to the nearest whole number.
Snowcat [4.5K]
When you round that number you get 7,000
4 0
3 years ago
16. You found a shortcut to school that saves 5 minutes off of taking the freeway. About 1 in every 10 trips
kykrilka [37]

Answer:

  it saves 2.5 minutes

Step-by-step explanation:

The expected value of a random variable is the sum of products of possibilities and the probability of each.

Here, you have a probability of 0.9 of saving 5 minutes, and a probability of 0.1 of adding 20 minutes.

__

The expected value of the shortcut is ...

  0.9(-5) +0.1(20) = -4.5 +2.0 = -2.5

The shortcut is expected to save 2.5 minutes on average.

_____

<em>Additional comment</em>

The probability of 0.9 comes from the 9 of 10 trips that result in a time saving.

6 0
2 years ago
What is 14/35 in simplest form?
PIT_PIT [208]
The answer is 2/5. Divide both the numerator and denominator by 7. :)
7 0
4 years ago
Read 2 more answers
The model below represents 2 x + 1 = negative x + 4.
ASHA 777 [7]

Answer:X = 1

Step-by-step explanation:

7 0
3 years ago
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