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3 years ago

What is the common ratio for this geometric sequence? 5,15,45,135...

Mathematics

1 answer:

LiRa [457]3 years ago

5 0

Answer:

Step-by-step explanation:

To find the common ration, we take the 2nd term and divide it by the first term

15/5 = 3

Let check by taking the third term and dividing by the 2nd term

45/15 =3

The common ratio is 3

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What is cos P? Right triangle PQR with a short leg measuring 5, a long leg measuring 12, and the hypotenuse as 13

OLga [1]

It depends how you name the sides of triangle.
Look at picture at the result.

$cos\alpha=\frac{12}{13}\\
cos\beta=\frac{5}{13}$

PS. Sorry for my terrible drawing but I did it as fast as possible :)

3 0

3 years ago

Can anyone pls answer this! it's really urgent!

stich3 [128]

Answer:

The answer is C

Step-by-step explanation:

You need to find a common denominator and in this case its 20. SO you change 3/4ths to 15/20 and 4/5ths to 16/20ths and 19/20 stays the same. Then you cancel out the 20 because its all the same number (I think) and you have your answer.

8 0

3 years ago

Simplify: (-2)(-3)+(4)(-8) Simplify: (3)(-6)-18

koban [17]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

natulia [17]

Which factors can be multiplied together to make the trinomial 5x2 + 8x – 4? Check all that apply.

(x + 1)

(2x + 1)

(x + 2)

(5x + 1)

(5x – 2)

Solution :

By multiplying (5x - 2) and (x + 2), the given trinomial will be obtain as follow.
(5x - 2) * (x + 2) = (5x * x) + (5x * 2) - (2 * x) - (2 * 2)
= 5x^2 + 10x - 2x - 4
= 5x^2 + 8x - 4

4 0

3 years ago

Read 2 more answers

two dice are rolled write the sample space and number of sample points also write events and number of sample points in the even

Pie

Answer:

S={(1,),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6),}n(S)=36

E = { (1,1), (1,2), (1,4), (1,6), (2,1), (2,3), (2,5), (3,2), (3,4), (4,1), (4,3), (5,6), (6,1), (6,5)}, n(E) = 15

Step-by-step explanation:

thats the answer

3 0

3 years ago