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3 years ago

Please Help!!!!!

Mathematics

2 answers:

insens350 [35]3 years ago

6 0

Answer:

I believe it is C.

Step-by-step explanation:

Obviously we are subtracting and the x represents the event happening so, automatically my mind went to x - 1.

Hope i helped you! :)

alex41 [277]3 years ago

5 0

The sum of the probability of taking place and not taking place is 1. If we represent the probability of it taking place by x then, the probability of it not taking place is equal to 1 - x.

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vovangra [49]

Answer:

F, J, K

Step-by-step explanation:

The other choices are regarded as expressions not equations, in which you can find the value of the the given variable.

4 0

2 years ago

A city hosted a music festival that included three concerts. According to the sales database, 28% of the audience attended the f

Vitek1552 [10]

Answer:

$P(X\cap Y\cap Z)=0.05$

Step-by-step explanation:

From the question we are told that:

Percentage of audience in first concert $P(X)=0.28$

Percentage of audience in second concert $P(Y)=0.42$

Percentage of audience in third concert $P(Z)=0.30$

Audience Percentage at at-least one concert $P(X \cup Y \cup Z)=0.80$

Percentage of audience at first & second concert $P(X \cap Y)=0.10$

Percentage of audience in first & third concert $P(X \cap Z)=0.08$

Percentage of audience in second & third concert $P(Y\cap Z)=0.07$

Generally the equation for probability of attending all concerts $P(X\cap Y\cap Z)$ is mathematically given by

$P(X \cup Y \cup Z)=P(X)+P(Y)+P(Z)-P(X \cap Y)-P(X \cap Z)-P(Y\cap Z)+P(X\cap Y\cap Z)$

$P(X\cap Y\cap Z)=P(X \cup Y \cup Z)-P(X)-P(Y)-P(Z)+P(X \cap Y)+P(X \cap Z)+P(Y\cap Z)$

$P(X\cap Y\cap Z)=0.80-0.28-0.42-0.30+0.10+0.80+0.70$

$P(X\cap Y\cap Z)=0.05$

Therefore the probability that a randomly selected audient attended all the concerts

$P(X\cap Y\cap Z)=0.05$

8 0

3 years ago

F(X)= 2x^2 +1. Find and simplify af(X)+b and f(ax+b)

kati45 [8]

Hello,

f(x)=2x²+1
f(ax+b)=2(ax+b)²+1=2(a²x²+2abx+b²)+1=2a²x²+4abx+2b²+1

af(x)+b=a(2x²+1)+b=2ax²+a+b

And f(ax+b)≠af(x)+b not linear

8 0

3 years ago

A triangle has sides of length 48 mm, 5cm and 1.4 cm.

cricket20 [7]

Answer:

The triangle is a right-angled triangle.

Step-by-step explanation:

Hi there,

I have included the answers as image format to the answers.

If you found my answer helpful, then please do me a favor by marking me as the brainliest as it means a lot to me.

From a fellow student,

Good day ahead, :)

Dan

5 0

2 years ago

Solve for u 6≤ -9/4u

masya89 [10]

if you mean.

$6 \leqslant \frac{4u}{ - 9}$

then the answer would be,

$u \leqslant - \frac{27}{2}$

7 0

2 years ago

Read 2 more answers