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VMariaS [17]
3 years ago
7

Factor x4 − 7x2 + 12.

Mathematics
1 answer:
tester [92]3 years ago
6 0

Answer:

(x+2)(x-2)(x^2-3)

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A pack of confectioneries contains candies in four (4) flavors (berry, lemon, orange and cacao), 3 pieces each. Candies are dist
suter [353]

Answer:

The probability is 0.4909

Step-by-step explanation:

The following equation for nCk give as the number of ways in which we can select k elements from a group of n elements:

nCk=\frac{n!}{k!(n-k)!}

Then, there are 220 ways in which we can select 3 candies from the 12 that are in the pack. It is calculated as:

12C3=\frac{12!}{3!(12-3)!}=220

On the other hand, there are 108 different ways to select the 3 candies in which they are all different flavors. It is calculated as:

4C3 * 3C1 * 3C1 * 3C1 = 108

Because, 4C3 give us the number of ways to select 3 flavors from the 4 flavors. From this 3 flavors selected, we are going to select one candie from each one, so we multiply 3 times by 3C1, one for each flavor.

Finally, the probability is the division between the number of ways in which we can select 3 candies with different flavors and the total number of ways in which we can select 3 candies from the 12 in the pack. This is:

P=\frac{108}{220}=0.4909

7 0
3 years ago
Nick is doing some math exercises on a website called Khon Academy. In Khon Academy, you have to get at least 70%, percent of th
ASHA 777 [7]

Answer:

0.75q/q+1 greater than or equal to .7

Step-by-step explanation:

8 0
3 years ago
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2: Write an equation for the line in slope-intercept form.
Finger [1]

Answer:

Step-by-step explanation: The equation of the line is written in the slope-intercept form, which is: y = mx + b, where m represents the slope and b represents the y-intercept.

7 0
2 years ago
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Is y = 3x+4 and y=3x-5 parallel, perpendicular or neither?
sineoko [7]

Answer: These Lines are <em>Parallel</em>

Step-by-step explanation: For two lines to be parallel, they must have the same slope with different y-intercepts. Both of the lines above have a slope of 3 and differing y-intercepts of 4 and -5. Therefore, these lines must be parallel to one another.

7 0
3 years ago
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If 3/4=x/2 then 7/4=
wariber [46]
I don’t know

I need to answer a question I'm new sorry
8 0
3 years ago
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