Which of the following equations has only one solution?

What is the sum of an 8-term geometric series if the first term is -11, the last term 180,224, and the common ratio is -4? answe

Blababa [14]

The general formula for the sum of the n terms of a geometric progression is:

Sn = A1 (1 - r^n) / (1 - r)

In this case, n = 8; A1 = - 11, r = -4

S8 = -11 (1 - (-4)^8) / (1 -(-4)) = 144,177

Answer: option c.

4 0

3 years ago

A COMPANY OF CELLULAR PHONES CAN SELL 200 UNITS PER MONTH AT PHP 2000 EACH THEN THEY FOUND AT THAT THEY CAN SELL 50 MORE CELLPHO

iragen [17]

Answer:

the answer is D

Step-by-step explanation:

4 0

2 years ago

Find the domain of h(x)=x/x^2-x-6

Fynjy0 [20]

Answer:

x

∈

R

−

{

−

2

.

3

}

Explanation:

h

(

x

)

=

x

2

−

x

−

6

is defined for all Real values of

x

except those values for which

x

2

−

x

−

6

=

0

x

2

−

x

−

6

=

(

x

+

2

)

(

x

−

3

)

So if

x

=

−

2

or

x

=

3

XXXX

x

2

−

x

−

6

=

0

and

XXXX

h

(

x

)

is undefined

3 0

3 years ago

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In triangle ABC, a = 5.3 cm, b = 4.8 cm, and c = 9.2 cm.

suter [353]

Answer:

a= 25.69, b=23.12, c=131.119

Step-by-step explanation:

$cosa=\frac{B^{2} +C^{2} -A^{2} }{2BC} \\ =\frac{79.59}{88.32} \\ a = 25.69$

$cos(b)=\frac{A^{2} +C^{2} -B^{2} }{2AC} \\ =\frac{89.69}{97.52}\\ b=23.12\\c=180-23.12-25.69\\ = 131.119$

8 0

2 years ago

The measure of ∠1 =<br><br> a. 110<br> b. 62.5<br> c. 55

Salsk061 [2.6K]

Answer:

option C

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers