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Arlecino [84]
3 years ago
6

What is the y-intercept of the graph of the equation y = 2(x - 3)² + 7? -3 6 7 25

Mathematics
1 answer:
babunello [35]3 years ago
6 0
The y-intercept would be 25, if you want to find the y-intercept, plug in zero for x!
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What does that mean
aivan3 [116]

The question is asking you to find the result when you square root 256.

The symbol of a square root is √

If ² is a square symbol, √ is the one that will convert the number back to it's non-squared form.

You normally can't do this without the calculator.

In this question, √256 = 16

3 0
3 years ago
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What is the slope of the line A-C?
Volgvan

Answer:

-3/4

Step-by-step explanation:

slope is change in y over change in x

line goes down three units (change of -3) and right 4 units (4)

-3/4

7 0
2 years ago
There are 10 candy bars 18 people how many candy bars will each person get? Explain.
fredd [130]

it is 10 divided by 18 which is 0.5
8 0
3 years ago
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A certain insecticide kills 70% of all insects in laboratory experiments. A sample of 8 insects is exposed to the insecticide in
xeze [42]

Answer:

19.77% probability that exactly one insect will survive

Step-by-step explanation:

For each insect, there are only two possible outcomes. Either they survive, or they do not. The probability of an insect surviving is independent of other insects. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A certain insecticide kills 70% of all insects in laboratory experiments

So 100 - 70 = 30% survive, which means that p = 0.3

A sample of 8 insects is exposed to the insecticide in a particular experiment.

This means that n = 8

What is the probability that exactly one insect will survive?

This is P(X = 1).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{8,1}.(0.3)^{1}.(0.7)^{7} = 0.1977

19.77% probability that exactly one insect will survive

6 0
3 years ago
Find the value of x of this triangle
castortr0y [4]
Answer: X=55/2

Explanation: Set all the values equal to 180 since all the angles in a triangle equal to 180 degrees. I checked my answer with calculator!

4 0
3 years ago
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