Evaluate each expression if a=2, b=3 and c=4 A.) 2a+4b-c B.) 6(a+c)-b

Mathematics

1 answer:

djyliett [7]3 years ago

4 0

Answer:

Step-by-step explanation:

A.) 2a+4b-c: Replacing a with 2, b with 3 and c with 4, we get:

2(2) + 4(3) - (4) = 4 + 12 - 4 = 12

B.) 6(a+c)-b: Replacing a with 2 and c with 4, we get 6(2 + 4) - 3.

The work inside parentheses should be done first, resulting in 6(6) - 3.

This comes out to 33.

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Given the diagram below, what is cos(45")?<br> 45° 6 <br> A. √2<br> B. 6/√2<br> C. 1/√2<br> D. 3√2

Gnesinka [82]

C. 1/root2

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2 years ago

If xy=0, what must be true about either x or y

evablogger [386]

Answer:

either x or y must equal 0

Step-by-step explanation:

ts given that xy = 0

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So, if the product of x and y is equal to 0 there are two possibilities:

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3 years ago

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lidiya [134]

$|2x - 1| = | - x - 2|$