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Anni [7]
3 years ago
12

(Answer asap pls)

Mathematics
1 answer:
Hitman42 [59]3 years ago
4 0

Answer:

25/625 or 1/25

Step-by-step explanation:

Because she replaces the chip, the probability remains the same (1/5 or 5/25).

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Write the sequence of transformations that changes figure ABCD to figure A'B'C'D'.
creativ13 [48]

Answer:

(x-2)(y+1)

Step-by-step explanation:

4 0
3 years ago
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
Use the formula B = p(1.08)n to find the balance B (in dollars and cents) for a principal p invested at a compound interest rate
aalyn [17]

Answer:

Option D. \$73.47  

Step-by-step explanation:

In this problem

we have    

B=P(1+r)^{t}  

where  

B is the Final Investment Value   or a Balance

P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

in this problem we have  

t=5\ years\\ P=\$50\\ r=0.08  

substitute in the formula above  

B=\$50(1+0.08)^{5}=\$73.47  

8 0
3 years ago
I really dont get math at all help plz
ollegr [7]
The x coordinate  is halfway between 2 and 10  =   2 + (10-2)/2 = 2+4 = 6

so midpoint is C  (6,3)
8 0
3 years ago
two mechanics worked on a car . the first mechanic worked 20 hrs and the second worked 15 hrs. together they charged a Total of
kogti [31]

answer

20h = 942.857

15h= 707.14

Step-by-step explanation:

7 0
3 years ago
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