3 years ago

What is the value of the expression when n = 3?

Mathematics

2 answers:

CaHeK987 [17]3 years ago

8 0

Answer:

The value = 54

Step-by-step explanation:

–2n(5+n–8–3n) = –2(3)(5+3-8-3(3)) = –6(5+3-8-9)=–30–18+48+54=54

I hope I helped you^_^

lesya [120]3 years ago

4 0

I’m trying to figure this out too

You might be interested in

Simplify 0.75 (5v+11)-0.25 (11+v)

wariber [46]

<span>2 • (7v + 11) over 4 is your answer :)</span>

5 0

3 years ago

Need help with these 2 questions ASAP, no links and a answer with an explanation will get brainly

marin [14]

Answer:

Yes, Fiona is correct

Step-by-step explanation:

WHen the pythagorean theorem is applied to the side lengths (2^2 + 4^2 = c^2), the result for c^2 is 20. The correct answer would be sqrt.20. But Fiona is also correct becuase sqrt of 20 can be simplified to sqrt.4 * sqrt.5; which equals 2*sqrt.5

3 0

3 years ago

Read 2 more answers

Four years ago, Sam invested in Grath Oil. She bought three of its $1,000 par value bonds at a market price of 93.938 and with a

BabaBlast [244]

The answer to the question is C

5 0

3 years ago

Read 2 more answers

Burt is thinking about a career in publishing but does not like writing. What

cricket20 [7]

C. So he can find a job that doesn’t include writing

6 0

3 years ago

Read 2 more answers

What is the value of the 9th term in the following geometric sequence?

earnstyle [38]

Answer: The correct option is (D) 196608.

Step-by-step explanation: We are given to find the value of the 9th term in the following geometric sequence :

3, 12, 48, 192, . . .

We know that

the n-th term of a geometric sequence with first term a and common ratio r is given by

$a_n=ar^{n-1}.$

For the given sequence, we have

first term, a = 3 and the common ratio, r is given by

$r=\dfrac{12}{3}=\dfrac{48}{12}=\dfrac{192}{48}=~~.~~.~~.~~=4.$

Therefore, the 9th term of the given sequence will be

$a_9=ar^{9-1}=3\times 4^8=3\times65536=196608.$

Thus, the required 9th term of the given sequence is 196608.

Option (D) is CORRECT.

7 0

3 years ago