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kotegsom [21]
3 years ago
11

I need help on this, please hurry and thank you!

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer: A.

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

2, 5, 10, 17, 26

First, check the difference between each term:

2 → 5 = +3

5 → 10 = +5

10 → 17 = +7

17 → 26 = +9

Since the difference (d) is not the same, this is not an arithmetic sequence.

Now, check the second tier {3, 5, 7, 9}

3 → 5 = 2

5 → 7 = 2

7 → 9 = 2

The difference (d) of the second tier is the same, so it is an exponential sequence.

--> the only option that is an exponential sequence is option A.

inna [77]3 years ago
4 0

Answer:

A.\ a_n=n^2+1

Step-by-step explanation:

Check:

a_n=n^2+1\\\\a_1=1^2+1=1+1=2\qquad CORRECT\\\\a_2=2^2+1=4+1=5\qquad CORRECT\\\\a_3=3^2+1=9+1=10\qquad CORRECT\\\\a_4=4^2+1=16+1=17\qquad CORRECT\\\\a_5=5^2+1=25+1=26\qquad CORRECT

Used PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

First Power, next Addition

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Estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the population of this area was
Natasha2012 [34]

Answer:

X=\$1.64*10^9

Step-by-step explanation:

From the question we are told that:

Population size P=918000

Rate of Population increase  \frac{dP}{dt}=9700

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Rate of annual income increase  \frac{dI}{dt}=\$1300

Generally the equation for Total Income is mathematically given by

X=P \frac{dI}{dt}+I \frac{dP}{dt}

X=918000*1400+(9200*30593)

X=\$1.64*10^9

6 0
2 years ago
Given: BAD = CAD. Find the perimeter of ABC.
11111nata11111 [884]

Answer:

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Step-by-step explanation:

Since the triangles are equal, the bottom length of triangle CAD will be the same as the bottom length of BAD. This means that the total length of the bottom of triangle ABC is 6 (3 + 3).

Next, you need to find the length of AC and again, since they're the same triangle, AB will be the same as AC, 14.

The three side lengths of the triangle will be 6, 14, and 14, so the perimeter is

6 + 14 + 14 = 34 units

4 0
3 years ago
To write 0.64 as a __,multiply it by 100
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If you multiply by 100 you will get the percentage 
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Step-by-step explanation:

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