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lana66690 [7]
3 years ago
5

If f(x) = x4 + 3x3 – x2 + 6, find f(-3). A) -3 B) -2 C) 2 D) 3

Mathematics
1 answer:
LuckyWell [14K]3 years ago
4 0
Yo use an app called photomath it really helps me
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Which integer represents the following: –(–28)? 28 -28
Dmitry [639]

Answer:

28

Step-by-step explanation:

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3 years ago
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Which Graph Represents A function ?<br><br> NEED ANSWER ASAP !!!!
ANEK [815]

Answer:

The very last one is a function

Step-by-step explanation:

The last one is a function because there are no y values that repeat. For example, If the points on one graph are like this; (1, 3) (2, 3); then it cannot be a function, the y values cannot repeat if it is a function.

To make things easier, just try to imagine vertical drawing lines through each point in every graph, if this imaginary vertical line passes more than one point in any graph, then that graph is not a function.

I hope this helps!! :D

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2 years ago
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What is the equivalent of π/6 radians in degrees. Question and answers are in photo above
Karolina [17]

There are a number of radian-degree equivalents that it would be time-saving and otherwise worthwhile to memorize. π/6 = 30 degrees is one of these. For reference, here are a few others:

radians degrees

0 0

2π 360

π 180

π/2 90

π/4 45

and so on. Good luck!


3 0
3 years ago
We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of
sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

Sample mean = 8

Sample standard deviation = 2

90% Confidence interval

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729  

Margin of error:

t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

1.729(\frac{2}{\sqrt{20}} ) = 0.773  

7 0
3 years ago
Expressão ( - b + c)² . h, para b = 12, c = 10 e h = 8, é: *<br>Mim ajudem ​
elena-14-01-66 [18.8K]

Answer:

i dont speak Spanish

Step-by-step explanation:

lol

3 0
2 years ago
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