Q18. Choose the correct option: (1) Which of the following statements is not true?
a. 9.05 and 7.39 are like decimals.
b. 1.49, 0.502, 3.40 are unlike decimals.
c. 35.89 and 35.890 are equivalent decimals.
d. 14.89 and 14.089 are equivalent decimals.

did you get the answer yet?

step-by-step explanation:

answer: 10 meter

step-by-step explanation:

need details

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

table a is wierd

step-by-step explanation:

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