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3 years ago

Help please

Mathematics

2 answers:

murzikaleks [220]3 years ago

6 0

Answer:

The probability is 16%

Step-by-step explanation:

Let's call A the event in which there is rain tomorrow and B the event in which the football game is postponed.

So, Taking into account that the event A and B are independent, the probability that happens A and B is calculated as:

P(A∩B) = P(A)*P(B)

From the question, we know that P(A) is 80% and P(B) is 20%, so P(A∩B) is:

P(A∩B) = 0.8*0.2=0.16

Then, the probability that it will rain tomorrow and the football game will be postponed is 0.16 or 16%

Gelneren [198K]3 years ago

5 0

there is a 4% chance the game will be postponed

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Eduardwww [97]

Karen = x
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1 year ago

Part B if the height of each prism is 10 Cm what is the surface area prism

Evgen [1.6K]

Answer:

Prism A:

$Area = 288cm^2$

Prism B:

$Area =250cm^2$

Step-by-step explanation:

Given

See attachment for prisms

$Height(h) = 10cm$

Required

Determine the surface area of both prisms

Prism A is triangular and as such, the surface area is:

$Area = 2 * A_b + (a + b + c) * h$

Where

$A_b = \sqrt{s * (s - a) * (s -b) * (s - c)}$

and

$s = \frac{a + b + c}{2}$

Such that a, b and c are the lengths of the triangular sides of the prism.

From the attachment;

$a = 8; b =6; c =10$

So, we have:

$s = \frac{a + b + c}{2}$

$s = \frac{8 + 6 + 10}{2}$

$s = \frac{24}{2}$

$s = 12$

Also:

$A_b = \sqrt{s * (s - a) * (s -b) * (s - c)}$

$A_b = \sqrt{12 * (12 - 8) * (12 - 6) * (12 - 10)}$

$A_b = \sqrt{576}$

$A_b = 24$

So:

$Area = 2 * A_b + (a + b + c) * h$

$Area = 2 * 24 + (8 + 6 + 10) * 10$

$Area = 288cm^2$

Prism B is a rectangular prism. So, the area is calculated as:

$Area = 2 * (ab + bh + ah)$

From the attachment

$a = b = 5$

$h =10$

So:

$Area =2 * (5 * 5 + 5 * 10 + 5 * 10)$

$Area =250cm^2$

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2 years ago

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Rewrite in standard form to find the center (h,k) and redius r.
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2 years ago

What is it !, help !

Gala2k [10]

Answer:

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Step-by-step explanation:

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2 years ago

Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below.

victus00 [196]

<em>Answer</em>

= 11

<em>Explanation</em>

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3 years ago

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