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dybincka [34]
3 years ago
7

I have a favorite quadratic equation. You tell me a pair of numbers (x, y) and I'll tell you if I like that pair of numbers or n

ot. See if you can determine the equation.
A few pairs I like: (0, 2) & (1, 6)

A few pairs that I don't like: (1, 2) & (-1, 6)
Mathematics
1 answer:
larisa [96]3 years ago
8 0

Answer:

Is it 2x² + 2x + 2?

Step-by-step explanation:

Check the picture...

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7 units up equation for each translation of y=|x|
ANTONII [103]

Answer:

y=IxI+7 is the answer.

Step-by-step explanation:

hope this helps

7 0
3 years ago
Determine if the functions are even, odd or neither. f(x) = -5x4 - 2 and g(x) = x3 + 2x
Setler [38]
Try this option:
the rule: if f(-x)=f(x), then the function f(x) is even, if f(-x)=-f(x) then the function is odd.
1. f(x)=-5x⁴-2;
if to substitute x→(-x), then f(-x)=-5*(-x)⁴-2; ⇔ f(-x)=-5x⁴-2, in other words f(x)=f(-x), it means that this function is even.
2. f(x)=x³+2x.
if to substitute x→(-x), then f(-x)=(-x)³+2*(-x); ⇔ f(-x)=-(x³+2x), in other words f(-x)=-f(x), it means that this function is odd.
5 0
3 years ago
Hypothesis testing on samples with fewer than 30 participants can be carried out by using the t-value for the corresponding leve
Eva8 [605]

Answer: true

Step-by-step explanation:

Z-tests are statistical calculations that can be used to compare the population mean to a sample mean The z-score is used to tellsbhow far in standard deviations a data point is from the mean of the data set. z-test compares a sample to a defined population and is typically used for dealing with problems relating to large samples (n > 30). Z-tests can also be used to test a hypothesis. Z-test is most useful when the standard deviation is known.

Like z-tests, t-tests are used to test a hypothesis, but a t-test asks whether a difference between the means of two groups is not likely to have occurred because of random chance. Usually, t-tests are used when dealing with problems with a small sample size (n < 30).

Both tests (z-tests and t-tests) are used in data with normal distribution (a sample data or population data that is evenly distributed around the mean).

3 0
3 years ago
Employees at The Shoe Shack get a 25% discount when they buy a pair of shoes at the store.
Amiraneli [1.4K]

Answer: Theo bought a pair of shoe for 36$

Step-by-step explanation:

25% = 0.25

48.00 * 0.25 = 12.00

   48.00 - 12.00 = 36.00

8 0
3 years ago
Give examples of two substances that look similar, but have different properties.
gogolik [260]

Answer:

Water and alcohol

Step-by-step explanation:

They are both a clear liquid. However, their properties are very different. Here are a few of the things that set them apart.

  • their smell
  • their PH
  • their density
8 0
3 years ago
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