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vekshin1
3 years ago
13

I) 2a (a - 1) - 2 + 1​

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

21

Step-by-step explanation:

its 21 because its so easy

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ABCD is a rectangle. If AC = 2x + 10 and BD = 56, find the value of x.
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Answer:

  (b)  23

Step-by-step explanation:

The diagonals of a rectangle are the same length, so ...

  AC = BD

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15.00 + 1.75x > 7.50 + 2.25
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Step-by-step explanation:

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WILL GIVE BRAINLIEST ANSWER
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3 years ago
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What is the solution of the system?
Serjik [45]

Answer:

(-13,-4)

Step-by-step explanation:

4x-8y=-20

9x+113=y

Substitute in y for 9x+113

4x-8y=-20

Substitute

4x-8(9x+113)=-20

Simplify

4x-72x-904=-20

Simplify

-68x-904=-20

Additive Prop. of Equality

-68x-904+904=-20+904

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Isolate the variable(x)

<u>-68x</u>=<u>884</u>

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Solve for y

9x+113=y

9(-13)+113=y

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Check

4x-8y=-20

4(-13)-8(-4)=-20

-52+32=-20

-20=-20

9x+113=y

9(-13)+113=-4

-117+113=-4

-4=-4

8 0
3 years ago
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Answer: C.

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Step-by-step explanation:

A simple random sample in statistics, is a subset of individuals chosen from a larger set. Each individual is chosen randomly and entirely by chance, such that each individual has the same probability for the entire larger set.

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3 years ago
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