51/2xy^2−2 2/5xy^2−1 3/5 xy^2− 1/2xy^2 if x=3.9 and y=4 what is the simplified expression and the value

Step-by-step explanation:

Collecting terms, you get ...

... = xy²(5 1/2 -2 2/5 -1 3/5 -1/2) = xy²((5 1/2 -1/2) -(2 2/5 +1 3/5))

... = xy²(5 - 4) = xy²

Substituting the give values for the variables and doing the arithmetic, you get ...

... xy² = 3.9×4² = 3.9×16 = 62.4

the answer to this question is yes

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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