3 years ago

2.1(0.2x−1.4)=1.3(0.4x−3.5) simplify lots of points

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

you need a y to get at least 1 point

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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

2 years ago

ernesto tiene 18 metros de malla el desea cerca solo tres lados de un terreno rectangular , ya que una pared sirve de limite del

Flura [38]

Answer:

Estoy prediendo espanol, as translate.

Step-by-step explanation:

6 0

2 years ago

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The current population of the Earth is estimated to be about 7,440,000,000 people. Express this number using scientific notation

SCORPION-xisa [38]

Answer:

7.44 × 10⁹

Step-by-step explanation:

You would take a decimal point from the last zero to in-between 7 and 4 and see how many places you moved it then write the scientific formula.

9 spaces so it would be 7.44 × 10⁹

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2 years ago

Tell whether x and y are proportional when y/x=7

77julia77 [94]

Answer:

Is there any more to this question?

Step-by-step explanation:

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2 years ago

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Mary sells lemonade at $1.50 a glass. She spent $8.00 on supplies. She ended with more than $28.00

Elena-2011 [213]

Answer:

(C.) 1.50n – 8.00 > 28.00

Hope this helped you!!!

Love,

Morgan Taylor!

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2 years ago

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