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agasfer [191]
3 years ago
13

A radioactive substance decays according to the equation y=30( .88 )^x, where y is measured in grams of the radioactive substanc

e and x is years. In how many years will there be about half of the original amount left of this radioactive substance?
Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0
The answer is: 4 idk.
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How to convert 100 inches per minute to feet per minute?
morpeh [17]

Answer:

8 1/3 ft/min

Step-by-step explanation:

12 inches = 1 foot

100 inches = 8 1/3 feet

4 0
3 years ago
P(2, 2), Q(1, -3), R(-4, 2), S(-3, 7) Using the information above, answer the following questions. Find the length of RS Find th
Setler79 [48]

Answer:

Yes the Quadrilateral is a Parallelogram.

Step-by-step explanation:

A parallelogram can be defined as a quadrilateral i.e a geometric shape with four sides that has opposite sides parallel and equal in length.

From the question, we are given the following points

P(2, 2), Q(1, -3), R(-4, 2), S(-3, 7)

Given points: (x1, y1) and (x2, y2)

The formula would be

√(x2 - x1)² +(y2 - y1)²

a) P(2, 2), Q(1, -3)

Length PQ = √(1 - 2)² +(-3 - 2)² = √-1² + -5² = √26

b) R(-4, 2), S(-3, 7)

Length RS = √(-3 - (-4))² + (7 - 2) ² = √ 1² + 5² = √26

c) R(-4, 2), Q(1, -3)

Length RQ = √(1 - (-4))² + (-3 - 2)² = √5² + 5² = √(25 + 25) = √50

d) S(-3, 7), P(2, 2)

Length SP = √(2 - (-3))² + (2 - 7)² = √5² +(-5)² = √(25 + 25) = √50

From the above solution, we can see that

Length PQ = Length RS

Length RQ = Length SP

This means the opposite sides are parallel and equal in length, hence it is a Parallelogram.

8 0
3 years ago
What is the slope for -4x-3y=6
loris [4]

Answer: y=4/3x+2


Step-by-step explanation:

-4x-3y=6

+4x       +4x

-3y=4x+6

-3/-3=4/3+6/3

y=4/3x+2


7 0
3 years ago
13. (x^-3)^-5x^6 = ?
Anna35 [415]
(x^-3)^ -5x^6=x^(-3· -5x^6)=x^15x^6
6 0
3 years ago
Owen simplified the expression r-8 s-5.
eduard

ok sweetheart so basicaly what u do is...

Sample Response: Each base must be treated separately. Since each base is raised to a negative exponent, they should both be in the denominator of the fractions. The simplified form of the expression has 1 in the numerator and r to the 8th power times s to the 5th power in the denominator

8 0
3 years ago
Read 2 more answers
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