3 years ago

I need help with this

Mathematics

1 answer:

Yuri [45]3 years ago

6 0

I think it is 50 degrees.
I could possibly be wrong

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Find the oth term of the geometric sequence 7, 14, 28, ...

yaroslaw [1]

Answer:

The nth term of the geometric sequence 7, 14, 28, ... is:

$a_n=7\cdot \:2^{n-1}$

Step-by-step explanation:

Given the geometric sequence

7, 14, 28, ...

We know that a geometric sequence has a constant ratio 'r' and is defined by

$a_n=a_1\cdot r^{n-1}$

where a₁ is the first term and r is the common ratio

Computing the ratios of all the adjacent terms

$\frac{14}{7}=2,\:\quad \frac{28}{14}=2$

The ratio of all the adjacent terms is the same and equal to

$r=2$

now substituting r = 2 and a₁ = 7 in the nth term

$a_n=a_1\cdot r^{n-1}$

$a_n=7\cdot \:2^{n-1}$

Therefore, the nth term of the geometric sequence 7, 14, 28, ... is:

$a_n=7\cdot \:2^{n-1}$

6 0

3 years ago

Racheal brought chocolate and vanilla to school for her birthday.80 students decided to take a cupcake and 56 of them took vanil

anyanavicka [17]

Answer:

70%

Step-by-step explanation:

56 vanilla cupcakes

------------------------------- = 0.7, or 0.7(100%), or 70%

80 students

70% of students picked vanilla.

3 0

3 years ago

Using polynomial regression fit a cubic equation to the following data: x 3 4 5 7 8 9 11 12 y 1.6 3.6 4.4 3.4 2.2 2.8 3.8 4.6 Pl

luda_lava [24]

Answer:

As problem is of regression analysis,thus r^2 will be 24 and sy/x is 4.

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3 years ago

A. The function shown on the graph has a greater rate of change, but a lower starting point.

Julli [10]

I think it is A

sorry if it is wrong!

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3 years ago

Max and Zoe collected 33 pieces of garbage from the beach. Zoe collected twice as many pieces of garbage as Max. How many pieces

ohaa [14]

Answer:

beach litter data that had been collected by the TG Marine Litter. ... (e.g. littering fines, voluntary restrictions, additional waste.

4 0

3 years ago

I need help with this ​

I need help with this