1) If x= 4.2 and y = 5, what is the value of the expression

Mathematics

1 answer:

____ [38]3 years ago

3 0

Answer:

Step-by-step explanation:

y-x=0.7

y=x+0.7, so lets plug in that into the expressions instead of y

(y-x)=

x+0.7-x=

x+0.7+(-x)=

x+(-x)+0.7=

x-x+0.7=

0.7

(x-(x+0.7))/((x+0.7)-x)=

(x-x+0.7)/(x+0.7-x)=

(x-x+0.7)/(x+0.7+(-x))=

(x-x+0.7)/(x+(-x)+0.7)=

(x-x+0.7)/(x-x+0.7)=

0.7/0.7=

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Each side of a square is increased by 3 inches. The perimeter of the new square is 40 inches more than twice the length of the s

RUDIKE [14]

Length of side of new square is 17 inches

Step-by-step explanation:

Step 1: Let the length of the side of the old square be x. Then length of side of new square = x + 3 and Perimeter of new square = 40 + 2x

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⇒ 4(x + 3) = 40 + 2x

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2 years ago

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Oksana_A [137]

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3 years ago

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True [87]

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First you must find the largest perfect square in √18:
The perfect square happens to be 9
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I hope this helps you!

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