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3 years ago

Que es probabilidad

Mathematics

1 answer:

Dafna1 [17]3 years ago

6 0

Probabilidad es probability

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Evaluate the expression of 8x - 20 if x=10

Readme [11.4K]

Answer:

Step-by-step explanation:

1. Substitute

8 (10) - 20

2. Multiply

80 - 20

3. Subtract

4 0

3 years ago

You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

8 0

3 years ago

If ◻SLED ~ ◻PARK which of the following statements are incorrect?

san4es73 [151]

Answer:

◻DELS ~ ◻KARP is incorrect

Step-by-step explanation:

All of the similarity statements have corresponding letters in the same order except ...

◻DELS ~ ◻KARP . . . . (incorrect)

_____

The correct version would be ...

◻DELS ~ ◻KRAP

3 0

2 years ago

How can we calculate the perimeter of an irregular shap

Nonamiya [84]

All you need to do to find the perimeter of an irregular shape is to know all the measurements of the shape and add them all together.

4 0

3 years ago

Simplify (2+3)squared-16 divided by 2

seraphim [82]

Answer:

it would be 4.5

Step-by-step explanation:

basic explantion

step 1. 3+2 =5

step 2 5x5=25

step 3 25-16=9

step 4 9 divde by 2= 4.5

simplifyed it would be 25-16 ÷ 2

more deatialed explanation.

I added 3+2 to get 5 and i sqaured the 5 to get 25 becasue 5x5 is 25 then i took away 16 and got 9 then i divde 9 by 2 to get 4.5. hope this helped!

4 0

2 years ago