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shepuryov [24]
3 years ago
11

If a polynomial function f(x) has roots 3 and V7, what must also be a root of f(x)?

Mathematics
1 answer:
Tatiana [17]3 years ago
6 0

Answer:

- \sqrt{7}

Step-by-step explanation:

Radical roots occur as conjugate pairs.

Thus if x = \sqrt{7} is a root then - \sqrt{7} is also a root

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victus00 [196]
% Increase = Increase/original number x 100
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5 0
3 years ago
PLZ HELP 100 POINTS A triangle has two sides with lengths 7 m and 12 m.Which of the following lengths could represent the length
Vinil7 [7]

Answer:

7, 10, 17

Step-by-step explanation:

4m can' t be the third side because the second side, 12m must be less than the sum of the first and third sides and can't be 19m because 19 must be less than the sum of the first and second sides.

As a rule, the measure of a side of a triangle must be less than the sum of the measures of the 2 other sides

3 0
3 years ago
A ramp has an angle of elevation of \displaystyle 20^{\circ}20 ∘ . It has a vertical height of 1.8 m. What is the length, L mete
juin [17]

Answer:

5.3

Step-by-step explanation:

6 0
2 years ago
Which is the graph of f(x) = (x + 3)(x - 2​
yanalaym [24]

Answer:

Step-by-step explanation:

f(x) = (x + 3)(x - 2​) has two zeros:  One stems from (x + 3) = 0 and is (-3, 0); the other stems from (x - 2) = 0 and is (2, 0).  

The axis of symmetry is a vertical line located halfway between -3 and 2:  

x =  -1/2.

The graph opens up because the given (x + 3)(x - 2) has a positive leading coefficient (+1).

With this information we can eliminate the last two possible answers.  Note that the x-intercepts of the first graph are -3 and 2,  Thus, the first graph is the correct one.

5 0
2 years ago
Convert 15/9 to a decimal. A. 1.64 B. 1.67 C. 1.66 D, 1.69
Travka [436]
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7 0
3 years ago
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