Questions in mathematics

Questions in mathematics

[Jawaban] Please help; I'm confused with half-life/compound interest problems. 1. Fermium-252 decays in 10 minutes to 76.1% of its original mass. Find the half-life of fermium-252. 2. How long do you have to wait until 15 mg of beryllium-7 have decayed to 4 mg, if the half-life of beryllium-7 is 53.12 days?

[Jawaban] On a scale drawing with a scale of 1/20, the height of the building is 8 inches. How tall is the actual building in feet?

[Jawaban] Write your expression that uses partial products to multiply 8×64

[Jawaban] If \( x \) is a negative number, which of the following could equal the absolute value of \( x \)? Select all that apply. A. -2 B. 2 C. 4 D. 6

[Jawaban] Simplify the expression: \(-|1-4|\)

[Jawaban] Which number will have the same result when rounded to the nearest ten or hundred? A. 97 B. 118 C. 179 D. 5091

[Jawaban] The equation \( A = \frac{1}{2}bh \) gives the area \( A \) of a triangle, where \( b \) is the length of the base and \( h \) is the height. Solve this equation for \( h \).

[Jawaban] A machine can produce 27 inches of ribbon every 3 minutes. How many feet of ribbon can the machine produce in one hour? Explain.

[Jawaban] A school receives a shipment of books. There are 60 cartons, and each carton weighs 42 pounds. The school's elevator can hold 2,200 pounds. What is the greatest number of cartons that can be carried on the elevator at one time if no people ride with them?

[Jawaban] How do you prove [tex](3x+2)^2[/tex] is equivalent to [tex](3x+6)(3x-2)+16[/tex]?