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3 years ago

What is the 8th term of the geometric sequence with this explicit formula? an= 6.(-2)(n-1)

Mathematics

2 answers:

lilavasa [31]3 years ago

7 0

Answer:

- 768

Step-by-step explanation:

Substitute n = 8 into the explicit formula, that is

$a_{8}$ = 6 × $(-2)^{7}$ = 6 × - 128 = - 768

alexdok [17]3 years ago

6 0

The answer is -768.

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write an equation in slope intercept form for a line that passed through the two points below (-4, -5) (4,1)

topjm [15]

Y= 3/4x - 2
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3 years ago

Need help for 16) and 19) Solve each equation and check. Show all work please

Paladinen [302]

Step-by-step explanation:

You said the other one would be the last haha just kidding I'm glad to help.

16. $\frac{k}{2}=(-5)^2$

First, get rid of that parenthesis.

$\frac{k}{2}=25$

Now multiply both sides by 2 so that you can isolate k

$2(\frac{k}{2})=25*2$

$k=50$

19. $\frac{r}{3}=\frac{121}{11}$

This is a pretty easy one. If you didn't know, 121/11 is actually 11 :)

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4 0

3 years ago

Read 2 more answers

- Mona Allen wants to buy a bed that costs $695. The city sales tax rate is 7%. In a nearby city the sales tax rate is 4%. How m

pentagon [3]

Answer:

$20.85 less.

Step-by-step explanation:

City sales:

7% tax = 48.65

total bed cost = $743.65

Nearby City:

4% tax = 27.8

total bed cost = $722.8

city sale - nearby city

743.65 - 722.8

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3 0

3 years ago

the actual distance between the faucet and the pear tree is 11.2 meters. Find the corresponding distance on the drawing (1 centi

Arturiano [62]

Answer:

22.4 cms.

Step-by-step explanation:

If 0.5 meters = 1 centimeter, 1 meter = 1/0.5 = 2 cms on the drawing.

So 11.2 meters = 11.2 *2 = 22.4 cms (answer).

7 0

3 years ago

8' 4" − 2' 6" = ??' ??"

SCORPION-xisa [38]

Answer:

5' 10"

Step-by-step explanation:

We subtract by converting into one measurement. We will choose inches.

8'4"= 96"+4"=100" since 8' has 8(12) inches

2'6"=24+6=30" since 2' has 2(12) inches

Subtract.

100"-30"=70"

We convert back into feet and inches by dividing by 12.

70/12= 5' 10"

4 0

3 years ago