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Fynjy0 [20]
3 years ago
9

Select the correct answer.

Mathematics
1 answer:
malfutka [58]3 years ago
6 0

Answer:

B

Step-by-step explanation:

B

x - 4 squared provides 2 real zeros that are the same. These two are not distinct.

The other two come from x^2 - 7x + 10 which has a discriminate of

sqrt(7^2 - 4*1*10) = sqrt(9) = +/- 3 leading to something real and different.

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Vedmedyk [2.9K]
First of all, since all powers of x in this function are even, the entire function is even.  Thus, using -x as input doesn't change the function.  Thus, f(-x)=2x^2-4.

6 0
3 years ago
Two similar parallelograms have areas of 18in^2 and 32in^2. find the ratio of their perimeters
raketka [301]
   
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3 0
3 years ago
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Levart [38]
-4x=-x2+12 should be written  <span>-4x=-x^2+12, with " ^ " representing exponentiation.

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To get you started:

 x     -4x              x^2+12      difference
--- ------------   ----------------   --------------
 2       -8                 16               24 (pretty bad!)
-4       16                28              12 (better)
 -10   40              112                72 (much worse)

To answer this problem correctly, you must present such a table, even tho' it'd be faster to use the quadratic formula (or some other method) to find x.


</span>
5 0
3 years ago
2. What is the circumference of a circle<br> with a radius of 22 centimeters? Use<br> 3.14 for at
erma4kov [3.2K]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The student council wanted to know students’ opinions about the music at school dances. They asked all the girls in a dance clas
Pavlova-9 [17]

Answer:

Yes

Step-by-step explanation:

The student council only asked a specific group of people for their opinion on the music. They will only have the dance class' opinions and not an accurate representation of the whole student population.

7 0
2 years ago
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