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olasank [31]
3 years ago
14

Find the illegal values of b in the fraction 2b² + 3b - 10 over b² - 2b - 8 .

Mathematics
1 answer:
MAXImum [283]3 years ago
6 0
(2b² +3b-10) / (b²-2b-8).

This fraction is invalid for all numbers rendering the denominator nil.
We notice that b²-2b-8 is a quadratic equation, so to factorize it let's find its roots:
 b'= 4 and x" = -2. FOR THESE VALUES b= - 2 and b = 4 , render the fraction impossible

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Please urgent answer needed
Daniel [21]

Answer:

8

Step-by-step explanation:

5 0
3 years ago
Evaluate 1/3y+8/15 when y=1/5
maks197457 [2]
Answer: 0.6

Why: 1/3 * 1/5= 0.066
0.066+8/15= 0.6

Hope this Helps :D
4 0
3 years ago
When playing the roulette at a casino, you have exactly 1/35 chance of winning in each round if you play a single number. Your f
Vikentia [17]

Answer:

0.2275 = 22.75% probability that you actually won that round

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Fireworks going off

Event B: You won

Probability of fireworks going off.

100% of 1/35 = 0.0286(when you win)

10% of 34/35 = 0.9714(you lost). So

P(A) = 0.0286 + 0.1*0.9714 = 0.12574

Probability of you winning and fireworks going off:

100% of 1/35, so P(A \cap B) = 0.0286

If you failed to see the outcome of a round, but you see the fireworks going off, then what is the probability that you actually won that round?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0286}{0.12574} = 0.2275

0.2275 = 22.75% probability that you actually won that round

8 0
3 years ago
HELP awarding 60 points and brainliest answer!!!
Tju [1.3M]

Answer:

A

Step-by-step explanation:

Choice A is right because there is no dot above the two.

Choice B is not right because there is 2 dots above 1 and not 3.

Choice C is not right because the data doesn't go passed 5 to get to 8

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5 0
3 years ago
Read 2 more answers
Can someone please help me find the horizontal asymptote of this graph I dont undestand
Andreas93 [3]

9514 1404 393

Answer:

  p = 0

Step-by-step explanation:

The graph is of an exponential function. An exponential function always has a horizontal asymptote of 0.

  p(t) = 5×2^t

  p(t) → 0 as x → -∞

The horizontal asymptote is p = 0.

7 0
3 years ago
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