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Lisa [10]
3 years ago
9

Cos x = 3/5 how do you solve this

Mathematics
2 answers:
ruslelena [56]3 years ago
5 0

Answer:

x = 53°

Step-by-step explanation:

x = cos-1 3/5

x = 53°

Deffense [45]3 years ago
3 0
The answer is 50 degrees

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Which transformations have been applied to the graph of f(x) = x2 to produce the graph of g(x) = –5x2 + 100x – 450? Select three
RSB [31]

Answer:

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

Step-by-step explanation:

we have

f(x)=x^{2}

This is a vertical parabola open upward

The vertex is a minimum

The vertex is the origin (0,0)

g(x)=-5x^{2}+100x-450

This is a vertical parabola open downward

The vertex is a maximum

The first thing to note is that fx) is a parabola that opens up and g(x) opens down, so a reflection across the x-axis must have been applied.

Find the vertex of g(x)

Convert to vertex form

g(x)=-5x^{2}+100x-450

Complete the square

g(x)=-5(x^{2}-20x)-450

g(x)=-5(x^{2}-20x+100)-450+500

g(x)=-5(x^{2}-20x+100)+50

g(x)=-5(x-10)^{2}+50

The vertex is the point (10,50)

so

To translate the vertex of (0,0) to (10,50)

The rule of the translation is

(x,y) ------> (x+10,y+50)

That means ----> The translation is 10 units at right and 50 units up

therefore

The transformations are

The graph of f(x) is shifted up 50 units

The graph of f(x) is shifted right 10 units

The graph of f(x) is reflected over the x-axis

5 0
3 years ago
Read 2 more answers
Which point has the coordinate –0.4?
Sphinxa [80]
The best and the most correct answer among the choices provided by the question is the fourth choice. K has a coordinate of -0.4. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions. 
8 0
3 years ago
Which shape is a unit cube?
8090 [49]

Answer:

square with 8 sides

Step-by-step explanation:

6 0
3 years ago
Identify a reflection about the x-axis or a reflection about the y-axis of f(x) = √-x by observing the equation of the function
olga55 [171]

Answer:

B) The base graph has been reflected about the y-axis

Step-by-step explanation:

We are given the function, f(x)=\sqrt{-x}.

Now, as we know,

The new function after transformation is g(x)=f(-x)=\sqrt{x}.

<em>As, the function f(x) is changing to g(x) = f(-x)</em> and from the graph below, we see that,

The base function is reflected across y-axis.

Hence, option B is correct.

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Please help me find the function rule, i dont know what to do!! I will give big brain
Vesnalui [34]
The answer is Y=4x+5
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