Mathematics, 03.12.2019 07:16 katieleeisaacs8368

# Element x is a radioactive isotope such that every 12 years, its mass decreases by half. given that the initial mass of a sample of element x is 430 grams, how much of the element would remain after 15 years, to the nearest whole number?

Answers: 1

Mathematics, 04.02.2019 23:03

The difference between two trinomials is 5x^2 + 11x âˆ’ 16. if one of the trinomials is 3x^2 âˆ’ 2x + 7, then which expression could be the other trinomial? a. 8x^2 + 13x âˆ’ 23 b. 2x^2 + 13x âˆ’ 23 c. 2x^2 + 9x âˆ’ 9 d. 8x^2 + 9x âˆ’ 9

Answers: 1

Mathematics, 03.02.2019 21:27

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

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Mathematics, 03.02.2019 05:10

If a car weighs 2859 ton what is the total amount you will get paid if their paying $5.50 hundredths lbs

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Mathematics, 03.02.2019 02:52

Is the point (0, 8) on the x-axis or y-axis? how do you know?

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