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BaLLatris [955]
3 years ago
8

Subtract. Write your answer as a fraction in simplest form. -83/8-101/6

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
5 0

Answer:

Step-by-step explanation:

-653/24

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Which equation can be used to find the area of trapezoid PQRT?
vladimir2022 [97]

Answer:

Area of a trapezoid is found with the formula, A=(a+b)/2 x h

Step-by-step explanation:

8 0
3 years ago
How you know its smallest to greatest 10, negative 10, 5 ,Negative 5 , 0
zmey [24]
This is the order from smallest to greatest: -10,-5,0,5,10
6 0
3 years ago
Ok whoever helps me is da best so plz :) 50 points
Nikolay [14]

Answer:

A(-2/3)

B(-1/6)

C(1/2)

D(4/3)

Step-by-step explanation:

There are 6 tics in each section.

That means each tic is 1/6

A(-4/6) -> (-2/3)

B(-1/6)

C(3/6) -> (1/2)

D(8/6) -> (4/3)

8 0
3 years ago
Element X is a radioactive isotope such that every 51 years, its mass decreases by half. Given that the initial mass of a sample
pychu [463]

Answer: It will take 6 years for 7500 grams of X to reach 6900 grams.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant  

a - x = amount left after decay process  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

51=\frac{0.69}{k}

k=\frac{0.69}{51}=0.0135years^{-1}

b) for  7500 g to reach to 6900 g

t=\frac{2.303}{0.0135}\log\frac{7500}{6900}

t=6years

It will take 6 years for 7500 grams of X to reach 6900 grams.

5 0
2 years ago
Y varies directly as x . when x=3 , then y=12 . find y when x=20.
Phoenix [80]

Answer:

Congress. would equal 80 due to x being worth 1/4 of y's total.

3 0
2 years ago
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