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Semmy [17]
3 years ago
12

Please solve this I need help

Mathematics
1 answer:
Yuki888 [10]3 years ago
5 0
I’m pretty sure it’s only a and e
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Identify the indicated sum for the geometric series.<br> S7 for 162 − 54 + 18 − 6 + .....
Ulleksa [173]

The indicated sum for the geometric series is 121.5

<h3>How to identify the indicated sum for the geometric series?</h3>

The series is given as:

162 − 54 + 18 − 6 + .....

Start by calculating the common ratio of the geometric series.

This is calculated using

r = -54/162

Evaluate

r = -1/3

The indicated sum for the geometric series is then calculated as:

S = a(1 - r^n)/1 - r

Substitute the known values in the above equation

S = 162(1 - (-1/3)^7)/1 + 1/3

Evaluate the exponent and the sum

S = 162(1 + 1/2187)/4/3

Evaluate the sum

S = 162(2188/2187)/4/3

Express as products

S = 162 * (2188/2187)* 3/4

Evaluate the product

S = 162 * 547/729

Evaluate the product

S = 121.5

Hence, the indicated sum for the geometric series is 121.5

Read more about geometric series at

brainly.com/question/24643676

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3 0
2 years ago
4(a + -5) in expanded form?
elena-s [515]

Answer: a+-5 x 4 (I THINK)

Step-by-step explanation:

4 0
3 years ago
If f(x)=2x^2+5 sqaure rooted(x-2)
Mazyrski [523]

Answer:                                                                                                                             f(3) = 23

Step-by-step explanation:

Put 3 where x is in the expression for f(x) and do the arithmetic.

... f(3) = 2·3^2 +5√(3-2)

... f(3) = 18 + 5 = 23

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3 years ago
Math modeling: pls help
Andreyy89

Answer:

1 or all?

Step-by-step explanation:

U>U

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