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Serga [27]
3 years ago
6

When a student is selected at random from a population of high school students, the

Mathematics
1 answer:
horrorfan [7]3 years ago
5 0

Answer:

Pr(tablet given smartphone) = 18%

Step-by-step explanation:

Let:

probability that the student has a smartphone = Pr(smart phone)

Pr(smart phone) =0.71

the probability that the student has a tablet = Pr(tablet)

Pr(tablet) = 0.28

the probability the student has both = Pr(both)

Pr(both) = 0.13

the probability a student has a tablet given they have a smartphone = Pr(tablet given smartphone)

Pr(tablet given smartphone) = Pr(tablet & smartphone)/Pr(smart phone)

Pr(tablet given smartphone) = 0.13/0.71

Pr(tablet given smartphone) = 0.183 = 18.3%

Pr(tablet given smartphone) = 18%

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1.<br> Write a polynomial function in factored form with zeros at -2, 5, and 6.
Hatshy [7]

Answer:

f(x) = (x + 2) (x − 5) (x − 6)

Step-by-step explanation:

f(x) = (x − (-2)) (x − 5) (x − 6)

f(x) = (x + 2) (x − 5) (x − 6)

4 0
3 years ago
At 10 percent interest, how long does it take to quadruple your money?
horsena [70]

It takes about 14.55 years for quadruple your money

<em><u>Solution:</u></em>

Given that,

At 10 percent interest, how long does it take to quadruple your money

Rule of 144:

The Rule of 144 will tell you how long it will take an investment to quadruple

Here,

Rate of interest = 10 %

Therefore, number of years to quadruple your money is obtained by dividing 144 by 10

<em><u>Rule of 144 Formula: </u></em>

N = \frac{144}{R}

Where:

N = Number of many years times.

144 = Is the constant variable.

R = Rate of interest.

\rightarrow N =  \frac{144}{10} = 14.4

Thus it takes about 14.4 years for quadruple your money.

<em><u>Another method:</u></em>

If initial amount is $ 1 and it if quadruples it should be $ 4

We have to find the number of years if rate of interest is 10 %

Let "n" be the number of years

Then we can say,

Amount = Principal(1+\frac{R}{100})^n

4 = 1(1+\frac{10}{100})^n

4 = 1(1+0.1)^n\\\\4= 1(1.1)^n\\\\4 = 1.1^n\\\\We\ know\ that,\\\\(1.1)^{14.55} = 1.1^n\\\\We\ know\ that\\\\If\ a^m = a^n\ then\ m = n\\\\Therefore,\\\\14.55 = n\\\\n = 14.55

Thus Option D 14.55 years is correct

7 0
3 years ago
Suppose two chemicals are reacted together. It takes 1000 kJ of energy to break the bonds of the reactants and 850 kJ of energy
dlinn [17]
B i think is is 150kj
3 0
3 years ago
Read 2 more answers
Explain multi step equations
Mice21 [21]
Multi-step equations are equations that  require more than one step to solve.

For example:
2x+6 = 10          You subtract 6 from both sides
2x= 4                 Divide both sides by 2
x=2                    It took 2 steps to solve for x, so it is a muti-step equation.

One step equation:
2x =6                divide 2 by both sides
x=3                    It only took one step, so it is an one-step equation.

Hope this can help you! Please put branliest answer if you like it! 


3 0
3 years ago
The average price of a home in a certain town was $74,000 in 2012, but home prices
xxTIMURxx [149]

Answer:

$47,360

Step-by-step explanation:

8 percent X 8years is equal to 64percent

74,000 X 64/100=47,360 dollars

8 0
3 years ago
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