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slavikrds [6]
3 years ago
12

Two possible solutions of are -7 and 1. Which statement is true?

Mathematics
1 answer:
quester [9]3 years ago
4 0

We can plug those values into the equation, and if the answer is incorrect, we'll know if either one is extraneous.

√11 - 2(-7) = √(-7)^2 + 4(-7) + 4

√25 = √25

5 = 5

The first solution, -7, makes the equation true, and so it is not extraneous.

√11 - 2(1) = √(1)^2 + 4(1) + 4

√9 = √9

3 = 3

The second solution, 1, makes the equation true, and so it is also not extraneous.

<h3>The correct option is D, neither solution is extraneous. </h3>
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alex41 [277]

Answer:

6

Step-by-step explanation:

6 appears the most

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3 years ago
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HELP ASAP PLEASE
Nonamiya [84]

Answer:

The correct option is;

5.89°

Step-by-step explanation:

The speed with which the plane flies = 350 mph

The direction of flight of the plane = N 40° E

The speed with which the wind blows = 40 mph

The direction in which the wind blows = S 70° E

Therefore, we have;

The resolution of the components of the motion of the plane, given as follows;

S_{Plane} = 350 × sin(40°)·i + 350 × cos(40°)·j

The resolution of the components of the motion of the wind, given as follows;

S_{Wind} = 40 × sin(70°)·i - 40 × cos(70°)·j

The resultant motion of the plane is given as follows;

R_{Plane} = 262.563·i + 254.435·j

The direction of motion of the plane = tan⁻¹(262.563/254.435) ≈ N 45.9° E

Therefore, the plane's drift = Plane's Track - Plane's Heading  = N 45.9° E - N 40° E ≈ 5.9° ≈ 5.89°

Therefore, the correct option is 5.89°.

5 0
2 years ago
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A new car worth ​$18 comma 000 is depreciating in value by ​$3 comma 000 per year. after how many years will the​ car's value be
ehidna [41]
Its 5 years
worth = 18000
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8 0
3 years ago
In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In th
KatRina [158]

This question is incomplete

Complete Question

In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half. Which expression represents the total number of points the player scored in the game?

a) 2x + 3x + 9

b) 2x + 3 + 9

c) 2x + 3x + 9x

d) 2 + 3x + 9

Answer:

a) 2x + 3x + 9

Step-by-step explanation:

Let the number of points shots a player scores = x

In a free throw, the player scored 9 points = 9

The player also scored a number of 2-point shots = 2x

In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half = 3x

The expression represents the total number of points the player scored in the game =

2x + 3x + 9

4 0
3 years ago
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Shalnov [3]

Answer:

1

Step-by-step explanation:

say you don't have a dog.. your parents get you one dog, and then get you another, you now have 2 :)

4 0
2 years ago
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