Ask question

Ask question

All categories

2 years ago

15

Please help me with my algebra homework?

1 answer:

USPshnik [31]2 years ago

4 0

Answer:

Step-by-step explanation:

a=1

r=-6/1=-6

$S_{7}=a\frac{1-r^n}{1-r} =1\frac{1-(-6)^7}{1-(-6)} \\=\frac{1+6^7}{1+6} \\=\frac{1+279936}{7} \\=\frac{279937}{7} \\=39991$

You might be interested in

Victor is ordering pizzas for a party. He would like to have 1/4 of a pizza for each guest. He can only order whole pizzas, not

sertanlavr [38]

7 pizzas, because you would divide 27 by 4 and get 6.75 and then round it up to 7.

Hope this helped :)

5 0

3 years ago

Read 2 more answers

Nate draws a map to show locations on a playground.

o-na [289]

i think that it is 1 yard because they are 1 apart

7 0

3 years ago

823 seconds expressed in minutes & sec

vladimir2022 [97]

13.72 minutes or 13 minutes 43.2 seconds

6 0

3 years ago

If 2 Lemons cost 15 cents, how many can be bought for 60 cents

mamaluj [8]

The answer is 8 lemons
What you do is divide 0.15 by 2 into a calculator.
you will get 0.075 which you would then divide by 8 and get 0.6 which is 60 cents, hope this helped!!

8 0

3 years ago

Read 2 more answers

Please help with this question!

lukranit [14]

Answer:

a. x = 5, AB = 14, BC = 8

Step-by-step explanation:

✔️Both triangles are similar, therefore their side lengths are proportional to each other.

Thus:

$\frac{2x + 4}{x + 3} = \frac{7}{4}$

Cross multiply

$4(2x + 4) = 7(x + 3)$

$8x + 16= 7x + 21$

Collect like terms

$8x - 7x = -16 + 21$

$x = 5$

✔️AB = 2x + 4

Plug in the value of x

AB = 2(5) + 4

AB = 14

✔️BC = x + 3

Plug in the value of x

BC = 5 + 3

BC = 8

7 0

3 years ago