What is the answer to x^{2} + 2x + 15 = 0

Mathematics

1 answer:

babymother [125]3 years ago

8 0

From my knowledge:

²−2−15=0

x=5

x=-3

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You pick a card at random. Without putting the first card back, you

Inga [223]

First, we need the probability of picking an odd number.

There are 5 cards in total, and 3 odd cards (3, 5, and 7).

That means that the probability that we'll draw an odd card would be $\frac{3}{5}$ .

Then, we have 4 cards left, and 2 even cards (4 and 6), meaning that the probability that we draw an even card will be $\frac{2}{4}$ or $\frac{1}{2}$ .

To find the probability that these would happen in consecutive draws, we just multiply the probabilities together.

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To convert this into a percentage, we multiply the decimal by 100.

$0.3*100=30$ .

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3 years ago

A wise man once said, "400 reduced by 3 times my age is 163." Write and solve a two-step equation to determine his age.

emmainna [20.7K]

Answer:

hey

Step-by-step explanation:

let the age of man be x

400-3x=163

400-163=3x

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x= 79

3 0

3 years ago

Read 2 more answers

I'm getting confused when i look at this question:

Vladimir [108]

2/9 = 0,222 this is liter what in milliliter will be 222

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3 years ago

Limits of a Function

Novay_Z [31]

We are given the equation:

$\lim_{x \to 1} \frac{f(x)-8}{x-1} = 10$