3 years ago

Write the first four terms in the following sequences. A(n+1)=12 A(n) for n≥1 and A(1)=4 .

1 answer:

3 0

Answer:Such sequences can be expressed in terms of the nth term of the sequence. In this case, the nth term = 2n. To find the 1st term, put n = 1 into the formula, to find the 4th term, replace the n's by 4's: 4th term = 2 × 4 = 8

You might be interested in

Given the picture, what is the length of AC? A) 4.5 B) 5 C) 7.5 D) 8

drek231 [11]

we know that

triangles BCD and ACE are similar

so, their ratios of sides must be equal

Calculation of y:

$\frac{BC}{AC}=\frac{CD}{CE}$

we can see that

AC=AB+BC

AC=y+3

CE=CD+DE

CE=4+6

CE=10

now, we can plug values

$\frac{3}{y+3}=\frac{4}{10}$

now, we can solve for y

$3*10=4*(y+3)$

$30=4y+12$

$30-12=4y+12-12$

$18=4y$

$y=4.5$

Calculation of AC:

we know that

AC=y+3

we can plug y

and we get

$AC=4.5+3$

$AC=7.5$ ...................Answer

7 0

3 years ago

After selling some lemonade and cookies, Vivian and her brother Gil had 7-one dollar bills, 8 quarters and 6 dimes.They agreed t

vichka [17]

Answer:

They earned $9.60 they will each get $4.80. Give or take.

Step-by-step explanation:

9.60÷2=4.80

6 0

3 years ago

A man hiked a distance of 9 miles into the country. He rode back in a car along the same route at the rate of 27 mph. If the ent

Sophie [7]

Let n be the man's walking rate. Then:
9/n+9/27=3&1/3
243+9n=90n
243=81n
n=3
The man's walking rate was 3 mph
☺☺☺☺

3 0

4 years ago

Read 2 more answers

A car travels 172 miles using 7 gallons of gas. At that rate, how far can the car traval using 42 gallons of gas?

Semmy [17]

Answer:

1.1032

2.6

3.16

4.35:50 I think

Step-by-step explanation:

7 0

3 years ago

Cual es la expresion decimal de - 18/3

lisabon 2012 [21]

Answer:

Step-by-step explanation:

You need to divide it.Then you get 18 divided by 3.Which is 6

3 0

3 years ago