3 years ago

Can someone help me with these problems step by step? It’s pre-algebra so it’s not rlly that hard.

Mathematics

1 answer:

gtnhenbr [62]3 years ago

5 0

Answer:

Step-by-step explanation:

√121=11 so right answer is B

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Consider this expression 5/6(1/2x+6)-3x<br> What is the value of the expression evaluated for x=12

just olya [345]

ANSWER

The correct answer is $-26$

EXPLANATION

The expression given to us is,

$\frac{5}{6}( \frac{1}{2}x+ 6)-3x$

We plug in $x=12$ . That means we substitute 12 wherever we see x to obtain,

$\frac{5}{6}( \frac{1}{2}\times 12+ 6)-3\times 12$

We simplify the parenthesis first to obtain,

$=\frac{5}{6}( 6+ 6)-36$

$=\frac{5}{6}( 12)-36$

$=5\times 2-36$

$=10-36$

$=-26$

Hence the expression evaluates to $=-26$

7 0

3 years ago

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By decreasing each dimension by 1 unit, the area of a rectangle decreased from 40 square feet (on the left) to 28 square feet

BabaBlast [244]

Attached a pic of the solution (s).