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3 years ago

If 8 girls brought a lunch box and 6 boys didnt what is the probability of a student bringing one.

Mathematics

1 answer:

Tatiana [17]3 years ago

3 0

Answer:

43 percent

Step-by-step explanation:

6/14 ×100%

=0.248

=43%

first add up the total people, then substract the total of people to the people that didn't bring them, divide them then multiply it by 100%

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Find the volume of the rectangular pyramid below.

lutik1710 [3]

Answer:

4800m³

Step-by-step explanation:

V= $\frac{lwh}{3}$ = $\frac{(30)(24)(20)}{3}$ =4800

8 0

3 years ago

Someone please help!! I’ll give you Brainliest!

Valentin [98]

Answer:

x= 1

y= 2

(1,2)

x=2

y=3

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x=3

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3 years ago

Find the volume of the following solid. The solid between the cylinder f(x,y)equals=e Superscript negative xe−x and the region

PilotLPTM [1.2K]

It is hard to comprehend your question. As far as I understand:

f(x,y) = e^(-x)

Find the volume over region R = {(x,y): 0<=x<=ln(6), -6<=y <= 6}.

That is all I understood. It would be easier to understand with a picture or some kind of visual aid.

Anyways, to find the volume between the surface and your rectangular region R, we must evaluate a double integral of f on the region R.

$\iint_{R}^{ } e^{-x}dA=\int_{-6}^{6} \int_{0}^{ln(6)} e^{-x}dx dy$

Now evaluate,

$\int_{0}^{ln(6)}e^{-x}dx$

which evaluates to, 5/6 if I did the math correct. Correct me if I am wrong.

Now integrate this w.r.t. y:

$\int_{-6}^{6}\frac{5}{6}dy = 10$

So,

$\iint_{R}^{ } e^{-x}dA=\int_{-6}^{6} \int_{0}^{ln(6)} e^{-x}dx dy = 10$

7 0

3 years ago

Please help ASAP need answer fast

kap26 [50]

A. 2
b. 0
c. -2
d. 0
f(x) just means that the number in the parentheses is the x-value and if it asks for f(x) it wants the y-value at that x point

5 0

3 years ago

Simplify: x0 y-3 / x2 y-1

svetlana [45]

$\frac{x {}^{0}y {}^{ - 3} }{x {}^{2}y {}^{ - 1} } \\ = \frac{1y {}^{ - 3} }{ {x}^{2}y {}^{ - 1} } \\ = \frac{1 \times 1}{ {x}^{2} y {}^{2} } \\ \\ = \frac{1}{ {x}^{2}y {}^{2} }$

Step by Step Explanation:

Evaluate the power: Any non-zero expression raised to the power of 0 equals 1
Simplify: Simplify the expression
Calculate the product: Any expression multiplied by 1 remains the same.

<h2>☆彡Hanna</h2>

#CarryOnLearning

8 0

2 years ago