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ahrayia [7]
3 years ago
7

The sum of a number and 20 is no more than the sum of the square of the number and 9.

Mathematics
2 answers:
choli [55]3 years ago
8 0
The answer is A because the phrase " no more than" stands for the symbol "less than or equal to", and "the sum of the square if the number and 9" stands for the number squared and then added to nine (x + 9)2.
Olegator [25]3 years ago
8 0

Answer:

Option A is correct

x+20 \leq x^2+9

Step-by-step explanation:

Let the number be x.

As per the statement:

The sum of a number and 20 is no more than the sum of the square of the number and 9.

"sum of a number and 20" translated to x + 20

"no more than" means \leq

"sum of the square of the number and 9" translated to x^2+9

then;

x+20 \leq x^2+9

Therefore, the following inequalities can be used to determine this unknown number is, x+20 \leq x^2+9

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Hope this will help you!

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What is the sum of (2+4i) and (7+11i)
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Add like terms
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3 years ago
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An NBC News/Wall Street Journal poll conducted in 2010 predicted that 61% of Americans did not support the Tea Party movement. I
fomenos

Answer:

The right answer is:

The poll provides strong evidence that more than 61% of Americans oppose the Tea Party movement this year. Why? The P-value (0.026) is less than the significance level of 5%.

Step-by-step explanation:

At a level of significance of 5%, a P-value of 0.026 (2.6%) means that the difference is significant and the null hypothesis is rejected.

The difference between the proportions is significant, what means that more than 61% of Americans oppose the Tea Party movement this year.

Note: The difference in the sample proportions (3%) is not enough to claim that the difference is significant.

The right answer is:

The poll provides strong evidence that more than 61% of Americans oppose the Tea Party movement this year. Why? The P-value (0.026) is less than the significance level of 5%.

5 0
3 years ago
What is the range of f(x) = 3x + 9?
11Alexandr11 [23.1K]
There is no restriction upon the domain, the x values, and is all real numbers or (-oo,+oo)

From such it is clear that the domain also contains all real numbers.

The range of f(x) is (-oo,+oo)
8 0
2 years ago
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