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svp [43]
3 years ago
8

Which statement best describes how to determine whether f(x) = x² – X + 8 is an even function?

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answer:

Option 1

Step-by-step explanation:

You can tell if a function is even if f(-x)=f(x):

f(x)=x^2-x+8

f(-x)=(-x)^2-(-x)+8

f(-x)=x^2+x+8

Since f(-x)\neq f(x), the function is not even. Therefore, option 1 is the best option.

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A number cube with faces labeled 1 through 6 is rolled 200 times. About how many times would you expect to roll an even number?
Sergio039 [100]

Answer:

The theoretical probability is smaller than the relative frequency

Step-by-step explanation:

6-sided cube rolled 200 times

Probability of an even number is 1/2= 0.5

200*1/2= 100- theoretical probability

Experimental frequency= 115

Relative frequency= 115/200= 0.575

0.575 > 0.5

The theoretical probability is smaller than the relative frequency

7 0
3 years ago
Which sign makes this number sentence true? |78| __ |-222|
sineoko [7]
The absolute value of 78 is < the absolute value of -222
6 0
3 years ago
Read 2 more answers
Can someone please help me, everyone is taking my points :(
statuscvo [17]

Answer:Yes that is correct, 3(2t + d) is equal to 6t+3d. This is due to the distributive property of multiplication, or as I like to call it, the DPM. The DPM works for all multiplication and praentheses problems. For example, 7(2t+3d)=14t+21d. You multiply the coefficient of the whole parentheses by each number/variable in the equation. Another example is 5(n+s)=5n+5s.

6 0
3 years ago
What is the equation of the graph below?
wlad13 [49]

<u>Answer:</u>

<u>y=cos(x+\pi )</u>

<u>Step-by-step explanation:</u>

From the graph, we can see that y = -1 when x  = 0.

So to check whether which of the given options is the equation of the given graph, we will set our calculator to the radian mode and then plug the value of x as 0.

1. y = cos(x + pi/2) = cos(0 + pi/2) = 0

2. y = cos(x+2pi) = cos(0+2pi) = 1

3. y = cos(x+pi/3) = cos(0+pi/3) = 1/2 = 0.5

4. y = cos(x+pi) = cos(0+pi) = -1


Therefore, the equation of this graph is y = cos(x+pi) = cos(0+pi) = -1.



5 0
3 years ago
How to use distributive property to express numbers in diferent ways?
konstantin123 [22]
You use distributive property to distribute the numbers out.
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3 0
3 years ago
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