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const2013 [10]
2 years ago
12

If x can be any number, how many solutions are there for the equation?

Mathematics
2 answers:
VARVARA [1.3K]2 years ago
5 0
C. There are many solutions
4(5)-1=19
4(10)-1=39
lidiya [134]2 years ago
5 0
I agree...C is the answer.  Anytime you put in a value for X, you get a different Y answer, so yes, there are many answers.  The other answer gives you two examples using x = 5 and x = 10.  You could also substitute any other number for x and get a different y answer; an infinite number of x's and y's actually.
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Write a polynomial equation with roots 5 and -9i. X^3-?x^2+?X-?=0
jek_recluse [69]

Answer:

x³ - 5x² + 81x - 405 = 0

Step-by-step explanation:

Complex roots occur in conjugate pairs.

Thus given x = - 9i is a root then x = 9i is also a root

The factors are then (x - 5), (x - 9i) and (x + 9i)

The polynomial is the the product of the roots, that is

f(x) = (x - 5)(x - 9i)(x + 9i) ← expand the complex factors

    = (x - 5)(x² - 81i²) → note i² = - 1

    = (x - 5)(x² + 81) ← distribute

    = x³ + 81x - 5x² - 405, thus

x³ - 5x² + 81x - 405 = 0 ← is the polynomial equation

6 0
3 years ago
Help help help please really need help
Galina-37 [17]

Problem 1

<h3>Answer:  B. M<3 would need to double.</h3>

Explanation: This is because angles 3 and 6 are congruent corresponding angles. Corresponding angles are congruent whenever we have parallel lines like this. If they weren't congruent, then the lines wouldn't be parallel. We would need to double angle 3 to keep up with angle 6.

=====================================================

Problem 2

<h3>Answer: D. none of these sides are parallel</h3>

Explanation: We have angles A and C that are same side interior angles, but they add to A+C = 72+72 = 144, which is not 180. The same side interior angles must add to 180 degrees for parallel lines to form. This shows AB is not parallel to CD.

A similar situation happens with angles B and D, since B+D = 108+108 = 216. This also shows AB is not parallel to CD. We can rule out choices A and C.

Choice B is false because AD is a diagonal along with BC. The diagonals of any quadrilateral are never parallel as they intersect inside the quadrilateral. Parallel lines never intersect.

The only thing left is choice D. We would say that AC || BD, since A+B = 72+108 = 180 and C+D = 72+108 = 180, but this isn't listed as an answer choice.

5 0
3 years ago
Beatrice buys a dishwasher for her new house. The price of the dishwasher is D dollars, and she pays an additional 2% tax.
Lubov Fominskaja [6]
The answers are as follows:
Box 1) D
Box 2) .02D
Box 3) D + .02D
7 0
3 years ago
Read 2 more answers
Help. Pic attached. I do not understand how to get the numbers.
Dima020 [189]

Answer:

If they are same side interior or same side exterior they will always add up to 180 so if you have m<7 = 131 then you subtract 131-180 and then you have the angle for one and you do it so on and so forth. If you have A corresponding angle, alternate exterior,alternate interior or a vertical angle they will be the same number at the angle given.

8 0
2 years ago
Evaluate -14 - 6 - 12 =??​
ddd [48]

Answer: -32

Step-by-step explanation: -14 - 6 - 12 = -32

3 0
3 years ago
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