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wariber [46]
3 years ago
7

Please help me i really need help please i really need help please please really need help please or i'm not gonna pass please

Mathematics
1 answer:
Andre45 [30]3 years ago
8 0
Is Oya a functional character or a real-life one? What is the story?
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Simplify 0.3 + 1 3/4
timama [110]
The answer would be 1.2/7
6 0
3 years ago
Marcy makes 15 of 20 free throws at basketball practice. What is the probability that she will miss her free throw? Possible ans
arlik [135]

Answer:

3/4

Step-by-step explanation:

15/20=3/4 if you divide both sides by 5

3 0
2 years ago
Read 2 more answers
A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the bod
adell [148]

Answer: a - 4.512 hours

b - 1.94 hours

Step-by-step explanation:

Given,

a) A(t) = 10 (0.7)^t

To determine when 2mg is left in the body

We would have,

A(t) = 2, therefore

2 = 10(0.7)^t

0.7^t =2÷10

0.7^t = 0.2

Take the log of both sides,

Log (0.7)^t = log 0.2

t log 0.7 = log 0.2

t = log 0.2/ 0.7

t = 4.512 hours

Thus it will take 4.512 hours for 2mg to be left in the body.

b) Half life

Let A(t) = 1/2 A(0)

Thus,

1/2 A(0) = A(0)0.7^t

Divide both sides by A(0)

1/2 = 0.7^t

0.7^t = 0.5

Take log of both sides

Log 0.7^t = log 0.5

t log 0.7 = log 0.5

t = log 0.5/log 0.7

t = 1.94 hours

Therefore, the half life of the drug is 1.94 hours

6 0
3 years ago
A bag has 5 yellow marbles, 3 red marbles and 2 blue marbles. Quinn randomly picks a marble from the bag and returns it before a
agasfer [191]

Answer:

Quinn can expect to pick blue 40 times

Step-by-step explanation:

the probability of picking blue is stated as 2/10 which can be reduced to 1/5

multiply the number of times they pick a marble ( shown as 200) by the probability of picking a blue one ( 1/5)

200 x 1/5 = 200 / 5 = 40

Quinn can expect to pick blue 40 times

6 0
3 years ago
Read 2 more answers
A number cube is rolled and a marble is selected at random from the bag at he right. Determine each probability.
Alenkasestr [34]

wheres the bag and everything else


5 0
3 years ago
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