All categories

3 years ago

Find the 15th term of the geometric sequence 2 , -8 , 32

Mathematics

1 answer:

marishachu [46]3 years ago

5 0

Answer:

first term (a)= 2

second term (b) = -8

common ratio (r) = -8/2 = -4

15th term = ar^ (n-1)

= 2* (-4)^ 14 =536870912

Step-by-step explanation:

You might be interested in

X+6=0 3x-2y = 10 simultaneous equations

inna [77]

X=-6
3(-6)-2y=10
-18-2y=10
2y=10+18
2y=28
Y=28/2
Y=14

3 0

3 years ago

Read 2 more answers

If f(x)=2x+9, then f(-1)= _____

Pavlova-9 [17]

Answer:

f(-1) = 7

Step-by-step explanation:

Put -1 where x is and do the arithmetic.

f(-1) = 2(-1) +9 = 7

4 0

4 years ago

Charlie watched 1 3 of a movie in the morning, and he watched some more at night. By the end of the day, he still had 2 5 of the

Finger [1]

Answer: 4/15 of the movie

Step-by-step explanation:

In the morning, Charlie watched ¹/₃ of a movie. He then watched some more at night.

At the end of the day, he still had ²/₅ of the movie to watch.

The proportions of an item must always add up to one. This means that if you added the 1/3 to the 2/5 and then to the fraction Charlie watch at night, they should add up to one.

¹/₃ + ²/₅ + x = 1

x = 1 - ¹/₃ - ²/₅

$x = \frac{15 - 5 - 6 }{15} \\\\x = \frac{4}{15}$

3 0

3 years ago

Which of the following indicates that ABC and ADEF are similar?

Mama L [17]

Answer:

C. △ABC ~ △DEF

Step-by-step explanation:

There are two geometry symbols among the choices.

~ is used for indicating similarity.

≅ is used for congruency.

Statement △ABC ~ △DEF means that triangle ABC is similar to triangle DEF. There is no triangle symbol in front of DEF in the picture, but I am assuming this was a typo.

5 0

2 years ago

4x = 18 as an improper fraction in its simplest form?

zheka24 [161]

Answer:

x = 9/2

Step-by-step explanation:

4x = 18

divide the 4 on both sides so it equals

x = 18/4

then simplify it to

x = 9/2

7 0

2 years ago