3 years ago

HELP ILL MARK BRAINLEST

1 answer:

6 0

Answer: -1280

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

Work Shown:

a(n) = a*r^(n-1)
a(n) = -10*2^(n-1)
a(8) = -10*2^(8-1)
a(8) = -10*2^7
a(8) = -10*128
a(8) = -1280

You might be interested in

Please help me guys I need ur help

Alexeev081 [22]

Answer:

3.5 yr

Step-by-step explanation:

np ;)

8 0

3 years ago

Read 2 more answers

Please Help!!<br><br> Write in exponential form.

Karo-lina-s [1.5K]

ANSWER

$5{e}^{i \frac{5\pi}{3} }$

EXPLANATION

The exponential form of complex numbers is given by;

$z =r {e}^{i \theta}$

The given complex number in polar form is:

$5( \cos( \frac{5\pi}{3} + i \sin( \frac{5\pi}{3}) )$

We have r=5 from the question and

$\theta = \frac{5\pi}{3}$

We substitute these values to obtain the exponential form:

$z =5{e}^{i \frac{5\pi}{3} }$

The correct answer is C

4 0

3 years ago

The pie chart represents the results when 120 people in a shopping centre were asked which country they were born in. Uk:84 What

Maurinko [17]

Answer:

22 people were born in the uk (66 ÷ 360) × 120=22

Step-by-step explanation:

5 0

3 years ago

He figure shows two parallel lines AB and CD cut by transversals EF and GH. Angle EKD measures 90 degrees.

forsale [732]

I would assume that the answer would be x=40 degrees, if not that then x=50 degrees but I would answer with x=40 degrees.

8 0

3 years ago

Read 2 more answers

Determine the area of the following figures.

Katyanochek1 [597]

A = bh
A = 8 x 7 = 56 cm^2

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

8 0

3 years ago