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liubo4ka [24]
3 years ago
12

How can one determine the number of x-intercepts of the graph of a quadratic function without graphing the function?

Mathematics
1 answer:
velikii [3]3 years ago
5 0

Answer:

The easiest method is to find the x-intercepts of the quadratic function by substituting y=0 in the function and solving it to find the possible values of x. The number of all possible values of x is the number of x-intercepts of the graph.

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What is the mean absolute deviation of this data set? 26, 31, 32, and 39
Nezavi [6.7K]

Answer:

3.5

Step-by-step explanation:

26, 31, 32, and 39

First we need to find the mean

(26+ 31+ 32+ 39) /4

128/4 = 32

The mean absolute deviation is sum of   the positive difference between the number and the mean  divided by the number of terms

((32-26)+ (32-31)+ (32-32)+ (39-32)) /4

14/4

3.5

4 0
3 years ago
8. Which statement is always true?
Anit [1.1K]

Answer:

D

Step-by-step explanation:

Any number multiplied by an even number will always be even. 10 is an even number.

4 0
3 years ago
Read 2 more answers
Not sure how to do this
OLEGan [10]
It's pretty simple! So it looks like you are learning proportions. You would cross multiply to achieve your answer. 

First, let's do your first problem: 

2     12
--- = ----
5       n 

You would take 5 and multiply it by 12 and get 60! Then you would do the same with 2 times n, giving you 2n (because you do not know what n represents YET.) 

Now you should have this:
60=2n OR 2n=60

We must isolate our variable, in order to do that, get rid of two! But how? You would do this by dividing 2n by 2. Yet in equations, when you do something to one side, you must do it to the other because they must be EQUAL! (hence the "equa-" in equation) 

2n=60
---   ---
2      2  DIVIDE 2 into 60
----------
n= 30   Simplify! 

Your final answer for the first question is n= 30! 



8 0
3 years ago
A florist uses 200 liliesto make 8 identical flower arrangements. How many lilies would the floristuse to create 6identical arra
Roman55 [17]

Answer:

150

Step-by-step explanation:

200 divided by 8 = 25 each

25 x 6 = 150

3 0
2 years ago
If a truck gets 14 mile to the gallon on average, how much does carbon dioxide is emitted into the atmosphere when the truck tra
Masja [62]
Converting 200 miles to the amount of carbon dioxide emission that would be 1.884 tons annually. This will be the amount of carbon dioxide given that 200 miles is monthly covered.
8 0
3 years ago
Read 2 more answers
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