gonzalez113bi gonzalez113bi

04-06-2020
Mathematics

contestada

The second term of a geometric sequence is 17.5 and the third term is 122.5. What is the common ratio? What is the first term?

Respuesta :

Stephen46 Stephen46

09-06-2020

Step-by-step explanation:

U2=ar

U2=17.5

U3=ar^2

U3=122.5

U3/U2=122.5/17.5

ar^2/ar=7

r=7

17.5=ar

17.5=7a

a=2.5

Answer Link

Otras preguntas

The temperature of a thermometer increases during a chemical reaction. What happens to the energy of the reaction (system)?

The adjusted trial balance columns of the worksheet for Whispering Winds Company are as follows.

If a star is moving away from you at constant speed, the absorption lines in its spectrum will.

find the missing number in ?/4 = 27/36

A Find the value of x. 6 X B D x = [?] 8 4 C

Work out (6 × 10²) ÷ (3 × 105) Give your answer in standard form.

Select the correct answer from the drop-down menu. Read the sentence from the passage. That old gentleman with the wild, white beard and the wild, white hat—tha

we sometimes_ table tennis.(played/ play)

Ali had 3 times as many marbles as cho does. After cho gives 4 marbles to Ali, Ali has 18 more marbles than cho does. How many more marbles does cho have in the

In the 1800s, violent, anti-Chinese riots took place in Chinatowns in several cities. in Chinatowns in rural areas. at railroad camps in the West. at factories