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Pie
3 years ago
15

1. Solve x2-4x+18=0.

Mathematics
2 answers:
Naya [18.7K]3 years ago
8 0
X²-4x+18=0

x= 4 ± √(16-4*1*18) / 2

x=4±√(16-72) /2

x= 4 ± √-56 /2

x = 4±2i√14 / 2

x= 2±√14 * i




MariettaO [177]3 years ago
5 0

Answer:

The answer is C I just took the test

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Answer:

Suppose we roll a six-sided number cube. Rolling a number cube is an example of an experiment, or an activity with an observable result. The numbers on the cube are possible results, or outcomes, of this experiment. The set of all possible outcomes of an experiment is called the sample space of the experiment. The sample space for this experiment is \displaystyle \left\{1,2,3,4,5,6\right\}{1,2,3,4,5,6}. An event is any subset of a sample space.

The likelihood of an event is known as probability. The probability of an event \displaystyle pp is a number that always satisfies \displaystyle 0\le p\le 10≤p≤1, where 0 indicates an impossible event and 1 indicates a certain event. A probability model is a mathematical description of an experiment listing all possible outcomes and their associated probabilities. For instance, if there is a 1% chance of winning a raffle and a 99% chance of losing the raffle, a probability model would look much like the table below.

Outcome Probability

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Losing the raffle 99%

The sum of the probabilities listed in a probability model must equal 1, or 100%.

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3 years ago
Simplify: -(sqrt 16x^2) if x&lt;0
hammer [34]

Answer:

16 x²

Step-by-step explanation:hope this helps and maybe you could give me a brainlist?

8 0
3 years ago
1. Ten slips of paper labeled from 1 to 10 are placed in a hat. The first slip of paper is NOT replaced before selecting the sec
Oduvanchick [21]
<span><span>1. If we get an odd number first (probability 5/10 = 1/2), then the only way to get a number greater than 9 is the 10 (probability 1/9, since only 9 papers remain). This gives 1/2 * 1/9 = 1/18.</span></span><span><span>
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8 0
3 years ago
Type the expression that results from the following series of steps:
hodyreva [135]

Answer:

\frac{y}{7} -2

Step-by-step explanation:

  1. Start with y: y
  2. Start with y, divide by 7: (y/7)
  3. Start with y, divide by 7, then subtract 2: (y/7) - 2

Have a lovely rest of your day/night, and good luck with your assignments! ♡

~ ren ⚘

4 0
2 years ago
Read 2 more answers
A gardener has a container with 6 3/5 ounces of liquid plant fertilizer. The gardener uses 2 1/2 ounces on a flower garden. How
docker41 [41]

Answer:

4 1/10 ounces of Liquid plant fertilizer left

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4   (6-5) / 10

4 1/10 ounces of Liquid plant fertilizer left

7 0
3 years ago
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