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3 years ago

The graph of f(x) =

Mathematics

1 answer:

Artyom0805 [142]3 years ago

6 0

Answer:

Step-by-step explanation:

put the value in the x -3 and there do simplify and answer that

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Flying against the wind, an airplane travels 4500km in 6 hours. Flying with the wind, the same plane travels 2910 kilometers in

katen-ka-za [31]

Let a denote the airplane's speed in still air, and w the windspeed.

When the plane flies against the wind, it can travel an average speed of

(4500 km) / (6 h) = 750 km/h

so that

a - w = 750 km/h

Flying with the wind, it moves at a speed of

(2910 km) / (3 h) = 970 km/h

so that

a + w = 970 km/h

Add the two equations to eliminate w and solve for a :

(a - w) + (a + w) = 750 km/h + 970 km/h

2a = 1720 km/h

a = 860 km/h

Subtract them to eliminate a and solve for w :

(a - w) - (a + w) = 750 km/h - 970 km/h

-2w = -220 km/h

w = 110 km/h

7 0

3 years ago

2. Which of the following is not an example of

Mariulka [41]

Answer:

B. 200

Step-by-step explanation:

A perfect square is the multiplication of two equal integers such as 1*1=1, 2*2=4, 3*3=9. From the examples, 1, 4, 9 are perfect square.

Non perfect square numbers are 1*2=2,

3*1=3,

5*1=5,

3*2=6,

6*1=6,

7*1=7

Examples of perfect squares:

1*1=1

2*2=4,

3*3=9,

4*4= 16,

5*5=25,

6*6=36,

7*7=49,

8*8=64,

9*9=81,

10*10=100,

11*11=121,

12*12=144,

13*13=169,

14*14=196,

15*15=225 and so on

8 0

3 years ago

Find the value of the csc 40° using your calculator. (I've been having a hard time with this, so it'd be helpful if anyone could

SCORPION-xisa [38]

The correct answer is: 
C 1.556.

Explanation:
This can be found by locating the csc button on your calculator. Typically it is located as the second option below the sin button as it is the inverse function.
If you cannot locate the csc button on your calculator, you can also use $\frac{1}{sin(40)}$ as csc is its inverse.

Also, it is helpful to note that some calculators have both a degrees and a radians mode for trigonometric functions. You will need to make sure that you are in degrees in order to use a calculator to solve this.

7 0

3 years ago

Read 2 more answers

What is the surface area of the figure?

Whitepunk [10]

The answer i c,because if u sum it up,u get that

3 0

3 years ago

Can anyone find the x and y intercepts for this equation?

ASHA 777 [7]

1/3x - 1/2y = 1

At the 'x' intercept, y=0 , and the equation is 1/3 x = 1

Multiply each side by 3 : x = 3  <== the x-intercept

At the 'y' intercept, x=0, and the equation is -1/2 y = 1

Multiply each side by 2 : - y = 2

Multiply each side by -1 :  y = -2  <== the y-intercept

7 0

4 years ago