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LUCKY_DIMON [66]
3 years ago
11

Apparently the answer is -2. How do they get that?

Mathematics
1 answer:
jasenka [17]3 years ago
8 0
H(x) is just a transformation of f(x).

The transformation is the '2x-3' inside of function 'f'.

Let x = 4, Then 2x-3 = 2(4) - 3 = 5.

This means that h(4) = f(5)

Use the given table to find f(5).

f(5) = -2
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X+3=-x-3 what does x equal
wlad13 [49]

Answer:

x=-3

Step-by-step explanation:

Place like terms on the same side.

Keep in mind when a term is moved from its original position, it changes sign.

x+x=-3-3

2x=-6

x=-3

6 0
3 years ago
Read 2 more answers
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
Word problems<br><br>kind of urgent
seraphim [82]
838. = 27x-271.42
+271.42. +271.42
1109.42= 27x
Divide by 27
X= $41.0896 per hour

5. Gross Pay is what you make before they takes taxes and insurance. From your check.
So Net Pay is better because what you actually get.
8 0
3 years ago
4.4674 divided by 0.18 please help!
sergejj [24]

Answer:

24.8188888889


Step-by-step explanation:

4.4674/0.18=24.8188888889

8 0
3 years ago
Solve by substitution
Tomtit [17]
X= -46 and y = -40 I worked it out I might be wrong
8 0
4 years ago
Read 2 more answers
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