2 years ago

Solve by completing the square: 5x2 + 20x + 32 = 0

1 answer:

5 0

Your answer is no solution (because a negative square root doesn't exist)
first, you divide all sides by five and then take b, half it then square it

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alukav5142 [94]

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1920

Step-by-step explanation:

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1 year ago

A used bookstore will trade 2 of its books for three of yours. If Val brings in 18 books to trade, how many books can she get fr

Ainat [17]

Answer:

she can get 12 books

Step-by-step explanation:

if you divide 18 by 3 you get 6

and if you times that my 2 get 12

so your answer is 12 books

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2 years ago

A six-sided fair die is rolled 4 times in a row. What is the probability of getting a 4 only on the last trial?

GuDViN [60]

P = Number of ways of getting only 4 at the last trial / Total number of waysNumber of ways of getting only 4 at the last trial = 5 * 5 * 5 * 1 = 125 (for the first three trials, all but 4 is permissible (6 - 1 = 5 ways), and for the last trial, only 4 is permissible (1 way)).Total number of ways = 6 * 6 * 6 * 6 = 1296.P = 125/1296.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

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2 years ago

Read 2 more answers

Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much al

eimsori [14]

If it doubles every 4 hours, in 12 hours you will have 3 doublings.
2 * 2 * 2 = 8
90*8 = 720 pounds of algae

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2 years ago

Sarah’s stands on a ground and sights the top of a steep Clift at a 60 degree angle of elevation she then steps back 50 meters t

SashulF [63]

Answer:

Cliff is 45 m tall.