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Helen [10]
2 years ago
7

Don’t get this at all??

Mathematics
2 answers:
DENIUS [597]2 years ago
6 0
Are you sure your in high school, also it's answer #3.
noname [10]2 years ago
3 0
Add 3 repeatedly.

- Because it adds 3 then the answer is there
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What expression equevalent to-3(-x+12)
bazaltina [42]

Answer:

3x - 36

Step-by-step explanation:

-3 (-x+12)

simply the expression

5 0
3 years ago
An airplane with an air speed of 165 mph is headed 210°. If the plane encounters a 15 mph wind from the west, find the ground sp
mestny [16]
Since a calculator is involved in finding the answer, it makes sense to me to use a calculator capable of adding vectors.

The airplane's ground speed is 158 mph, and its heading is 205.3°.

_____
A diagram can be helpful. You have enough information to determine two sides of a triangle and the angle between them. This makes using the Law of Cosines feasible for determining the resultant (r) of adding the two vectors.
.. r^2 = 165^2 +15^2 -2*165*15*cos(60°) = 24975
.. r = √24975 ≈ 158.03
Then the angle β between the plane's heading and its actual direction can be found from the Law of Sines
.. β = arcsin(15/158.03*sin(60°)) = 4.7°
Thus the actual direction of the airplane is 210° -4.7° = 205.3°.

The ground speed and course of the plane are 158 mph @ 205.3°.

4 0
3 years ago
I need help ASAP
dem82 [27]

Answer:

The inequality is 6 + 3x ≤ 12 or x ≤ 2 .

Step-by-step explanation:

Given that $6 is for admission which is a fixed amount, $3 is charged per hour and must not spend more than $12. So the inequality will be :

Let x be the no. of hours,

6 + 3x ≤ 12

Solve :

6 + 3x ≤ 12

3x ≤ 12 - 6

3x ≤ 6

x ≤ 6 ÷ 3

x ≤ 2

4 0
2 years ago
Read 2 more answers
PLEASE HELP <br><br> Which relation is a function?!
tia_tia [17]

The answer is the third one aka C.

There must not be two points on the same y-axis because that doesn't make a function but a relation instead.

C. doesn't have 2 points on same y-axis and therefore the third picture is the relation that's a function.

4 0
3 years ago
What is the answer to the math problem 6+(-3)
MA_775_DIABLO [31]
The answer should be 3
8 0
3 years ago
Read 2 more answers
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