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3 years ago

Graphs of more than one function f(4)= If g(x)=2,x=

Mathematics

1 answer:

Mamont248 [21]3 years ago

5 0

Answer:

f(4)= 11

If g(x)=2, x=0

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as a club fundraiser, a group of students washed 40 cars one weekend,they washed 70 cars. what was the percent increase in the n

Degger [83]

Answer:

75%

Step-by-step explanation:

To know the answer, you should take into account that, 70 equals 1,75 times 40.

This is because $\frac{70}{40}=1,75$ .

Then, if 70 equals 1,75 times 40, it is 0,75 = 75% greater than 40.

4 0

3 years ago

Read 2 more answers

1) A traditional die is a cube with each of its six sides representing the numbers from 1 to 6. Mr. Dicey customized a die by re

liraira [26]

Answer:

1) $\frac{2}{5}$

2) 49.225

3) $\frac{7}{2}$

Step-by-step explanation:

1) To find the expected value of the dice we can use the following equation:

$E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})$

So in our problem the values x will be: 1/1, 1/2, 1/3, 1/4, 1/5 and 1/6 and the probavility for all values is 1/6 so the expected values will be: $E(x)=(\frac{1}{1} *\frac{1}{6}) +(\frac{1}{2} *\frac{1}{6}) +(\frac{1}{3} *\frac{1}{6})+(\frac{1}{4} *\frac{1}{6})+(\frac{1}{5} *\frac{1}{6})+(\frac{1}{6} *\frac{1}{6})$

$E(x)=0.167+0.083+0.056+0.042+0.033+0.028=0.409\approx \frac{2}{5}$

2) To find the variance of the expected values we can use the equation:

$Var(x)=\frac{\sum_{i=1}^{n}(x_{i}-\overline{x})^{2} }{n}$

So for our problem will be:

$Var(x)=\frac{(3-10.5)^2+(4-10.5)^2+(17-10.5)^2+(18-10.5)^2}{4}$

$Var(x)=\frac{56.25+42.25+42.25+56.25}{4}$ $Var(x)=\frac{196.9}{4}=49.225$

3) To find the expected value of the dice we can use the following equation:

$E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})$

So in our problem the values x will be: 1, 2, 3, 4, 5 and 6 and the probavility for all values is 1/6 so the expected values will be: $E(x)=(1*\frac{1}{6}) +(2 *\frac{1}{6}) +(3 *\frac{1}{6})+(4 *\frac{1}{6})+(5 *\frac{1}{6})+(6 *\frac{1}{6})$

$E(x)=0.17+0.33+0.5+0.67+0.83+1=3.5\approx \frac{7}{2}$

7 0

3 years ago

706,000 scientific notation

Pie

Answer:

7.06 × 10^5

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

6. A 20-foot vertical pole casts a 12-foot

horrorfan [7]

Answer:

Step-by-step explanation:

I believe so because the 20 pole took away six so im guessing the 41 pole will to the same

5 0

3 years ago

A store sells a 1 1/4 pound package of turkey for $9.

aleksandrvk [35]

Answer:

$7.20

Step-by-step explanation:

The first step is to convert 1 1/4 to decimal form. 1/4=0.25, which when added to the 1 gives a total weight of 1.25 pounds. Dividing this by the price to find the unit price, you get 9/1.25=$7.20 per pound of turkey. Hope this helps!

7 0

3 years ago

Read 2 more answers