3 years ago

Expand ( 2 − x ) 5 and identify each part of the expression.

Mathematics

1 answer:

dimaraw [331]3 years ago

8 0

You use distributive property. So (5 x 2)-(5 x x)= 10 - 5x.

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Jordan is 12 years older than Anna. The

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Answer:

J = [12] +A
J + A = [50]

Step-by-step explanation:

If Anna's age is represented by A, then 12 more than Anna's age will be ...

12 + A

Jason's age is said to be 12 more than Anna's age, so ...

J = 12 + A

The sum of their ages will be J + A. That is said to be 50, so ...

J + A = 50

_____

These equations can be solved by using the first to substitute for J in the second.

(12 +A) +A = 50

2A = 38 . . . . . . . . subtract 12

A = 19 . . . . . . . . . . divide by 2

J = 12 +19 = 31 . . . find Jason's age

Jason is 31; Anna is 19.

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Step-by-step explanation:

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3 years ago

A pebble drops from a balcony that is 160 feet above the ground. The pebble lands on the top of a sign that is 16 feet high. The

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Answer:

3 seconds

Step-by-step explanation:

16 = 160 - 16t²

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