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2 years ago

How to graph y= x - 2

Mathematics

1 answer:

Softa [21]2 years ago

8 0

Step-by-step explanation:

make a negative and positive sign coordinate plane

plot it on -2

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Which of the following is the solution to the equation x^2-36x=0

Marizza181 [45]

$x^2-36x=0 \\
x(x-36)=0 \\
x=0 \ \lor \ x-36=0 \\
x=0 \ \lor \ x=36 \\
\boxed{x=0 \hbox{ or } x=36}$

7 0

3 years ago

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A baker uses a coffee mug with a diameter of 8 cm, to cut out circular cookies from a big sheet of cookie dough. What is the are

ryzh [129]

Answer:

A = $16\pi$ $cm^{2}$

Step-by-step explanation:

∵ The diameter of the mug is 8 cm and using to cut out circular cookies

∴ The diameter of each circular cookie is 8 cm

∴ Its radius = 8 ÷ 2 = 4

∵ Area of the circle = $\pi r^{2}$

∴ Area = $\pi 4^{2}=16\pi cm^{2}$

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2 years ago

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1.5(x+4)-3=4.5(x-2)?

lukranit [14]

Answer:

x=4

Step-by-step explanation:

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2 years ago

A worker at a landscape design center uses a machine to fill bags with potting soil. Assume that the quantity put in each bag fo

defon

Answer:

a) The expected value is given by:

$E(X) =\frac{a+b}{2}= \frac{10+12}{2}= 11$

The variance is given by:

$Var(X) = \frac{(b-a)^2}{12}= \frac{(12-10)^2}{12}= 0.3333$

And the standard deviation is just the square root of the variance and we got:

$Sd(x) = \sqrt{0.3333}= 0.5774$

b) $P(X$

And we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a}, a \leq x \leq b$

And using this function we got:

$P(X$

c) $P(X>10.5)$

And using the complement rule and the cumulative distribution function we got:

$P(X>10.5)= 1-P(X$

Step-by-step explanation:

For this case we define the random variable X=quantity put in each bag , and we know that the distribution for X is given by:

$X \sim Unif (a= 10, b =12)$

Part a

The expected value is given by:

$E(X) =\frac{a+b}{2}= \frac{10+12}{2}= 11$

The variance is given by:

$Var(X) = \frac{(b-a)^2}{12}= \frac{(12-10)^2}{12}= 0.3333$

And the standard deviation is just the square root of the variance and we got:

$Sd(x) = \sqrt{0.3333}= 0.5774$

Part b

For this case we want this probability:

$P(X$

And we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a}, a \leq x \leq b$

And using this function we got:

$P(X$

Part c

For this case we want this probability:

$P(X>10.5)$

And using the complement rule and the cumulative distribution function we got:

$P(X>10.5)= 1-P(X$

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3 years ago

Betty has 32 hair ribbons she gave 0.25 of the ribbons to Sheri she gave 0.5 of the remaining ribbons to Marcy she kept the rema

GarryVolchara [31]

Do you mean 25 and 50 percent of the ribbons?

8 0

3 years ago

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