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SashulF [63]
3 years ago
13

Which function could be shown in the graph below?

Mathematics
2 answers:
vodka [1.7K]3 years ago
6 0
I am thinking is C but I am still not sure
erik [133]3 years ago
3 0
Wheres the graph it needs to be a graph so you can get help
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Chris's new car gets 42 miles per gallon. What is the equation that represents y, the total miles driven on x gallons of gas?
Fiesta28 [93]

Answer:

y = 42x

Step-by-step explanation:

42 miles times however many gallons of gas (x)  will get you the total miles driven (y)

8 0
3 years ago
3.3 A circle has a radius of 12cm. An angle of 3.2 radians is subtended at the centre by an arc. Calculate the length of the arc
Inessa [10]

Answer:

S = 38.4 centimeters.

Step-by-step explanation:

<u>Given the following data;</u>

  • Radius, r = 12 cm
  • Angle = 3.2 rads

To find the length of the arc of a circle;

A full circle measures an angle of 360 degrees.

π = 180°

So; Angle, A = 360° = 2π

Therefore, a full circle is equal to 2π in terms of radians (rads).

Also, the circumference (the length of an arc) of a circle is equal to 2πr or Ar.

Mathematically, the length of the arc of a circle is given by the formula;

S = rA

Where;

  • S is the length of the arc.
  • A is the angle measured in radians.

Substituting into the formula, we have;

S = 12 * 3.2

<em>S = 38.4 centimeters.</em>

3 0
2 years ago
Please help with this problem.
larisa86 [58]

Answer:

60°, 120°

Step-by-step explanation:

\frac{ {tan}^{2}x }{2}  - 2 {cos}^{2}x = 1 \\   \\  \frac{ {tan}^{2}x  - 4{cos}^{2}x }{2} = 1 \\  \\ {tan}^{2}x  - 4{cos}^{2}x = 2 \\  \\  \frac{{sin}^{2}x}{{cos}^{2}x} - 4{cos}^{2}x = 2 \\  \\ \frac{{sin}^{2}x - 4{cos}^{4}x}{{cos}^{2}x}  = 2 \\  \\ {sin}^{2}x - 4{cos}^{4}x = 2{cos}^{2}x \\  \\ 4{cos}^{4}x  + 2{cos}^{2}x - {sin}^{2}x = 0  \\  \\ 4{cos}^{4}x  + 2{cos}^{2}x  +  {cos}^{2}x  - 1= 0  \\  \\ 4{cos}^{4}x  + 3{cos}^{2}x   - 1= 0  \\  \\ 4{cos}^{4}x  + 4{cos}^{2}x -   {cos}^{2}x - 1= 0  \\  \\4{cos}^{2}x({cos}^{2}x + 1) - 1({cos}^{2}x + 1) = 0 \\  \\ ({cos}^{2}x + 1)(4{cos}^{2}x - 1) = 0 \\  \\ ({cos}^{2}x + 1) = 0 \: or \: (4{cos}^{2}x - 1) = 0 \\  \\ {cos}^{2}x =  - 1 \: or \: 4{cos}^{2}x = 1 \\  \\ {cos}x = \sqrt{ - 1}  \: which \: is \: not \: possible \\  \therefore \: {cos}^{2}x =  \frac{1}{4}  \\  \\ \therefore \: {cos}x =   \pm\frac{1}{2} \\  \\ \therefore \: {cos}x =   \frac{1}{2}  \: or \: {cos}x =    - \frac{1}{2}  \\  \\ \therefore \: {cos}x =   {cos}60 \degree \: or \: {cos}x =     {cos}120 \degree \\  \\ \therefore \:x = 60 \degree \:  \: or  \: \: x  = 120 \degree

6 0
3 years ago
Can anyone help me ):? I’d really appreciate it so much
Ipatiy [6.2K]
I cant see the image but I can help if you can message or something
4 0
3 years ago
What is the answer to this question 5 x 2/5 =?
Nuetrik [128]

Answer:

2

Step-by-step explanation:

5 * 2/5

Rewriting

5/1 * 2/5

5/5 *2/1

1*2

2

6 0
3 years ago
Read 2 more answers
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