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garri49 [273]
3 years ago
9

Find the value of the function for θ. sin(45°) = ? A) 1/2 B) √2/2 C) √3/2

Mathematics
2 answers:
Marysya12 [62]3 years ago
8 0
The correct answer is B
Darya [45]3 years ago
3 0

Answer:

B) radical2/2

Step-by-step explanation:

To find the answer, you can A., either type this in a calculator, or B., use the unit circle.

When we observe the unit circle, we can see that the 45* angle is in Quadrant 1, and that the matching radian is pi/4, and the corresponding coordinates are (radical2/2, radical2/2).

So, sin(45*) is B) radical2/2.

Note that sin(θ) means the y-value of the angle's coordinates, cos(θ) normally means the x-value of the angle's coordinates..

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You are deciding between two cars with different engines and want the bigger of the two. one engine displaces 350 cubic inches.
avanturin [10]
Should be 5,150 because 5,500 - 350 is = to 5,150 and by what you are asking this is the answer to your question.    
4 0
3 years ago
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Why is the mechanical advantage of using a single pulley always 1? Assume there’s no friction. A. The input force is in a differ
Luba_88 [7]

Answer:

  D. The input force is equal to the output force

Step-by-step explanation:

A pulley changes the direction of the applied force, but does not change its magnitude. The mechanical advantage is the ratio of output force to input force, so must be 1 when the force magnitude does not change.

8 0
3 years ago
What is the slope and y intercept of -2x +3y=-9
attashe74 [19]

Answer:

m = 2/3

b = -3

Step-by-step explanation:

Rearrange the equation to slope-intercept form (y = mx + b).

x and y are points on the graph.

m is the slope.

b is the y-intercept.

Isolate "y". This means separating it from the other numbers.

-2x +3y = -9

-2x + 2x +3y = -9 + 2x    Add 2x to both sides

3y = 2x - 9

3y/3 = 2x/3 - 9/3      Divide both sides by 3

y = 2x/3 - 9/3      Simplify

y = (2/3)x - 3

Think about which numbers and "m" and "b" now that the equation is in y = mx + b. Include the plus and minus signs.

m = 2/3

b = -3

8 0
3 years ago
Plz help me this is already suppose to be done lol
nignag [31]

Answer:

1. 247 mg ÷ 10 = 24.7 cg

2. 247 mg ÷ 100 = 2.47 dg

247 mg ÷ 1000 = 0.247 g

Step-by-step explanation:

1. To convert from 'mg' to 'cg', you must divide by 10 because 'cg' consists of 10 mg.

2. To convert from 'mg' to 'dg', you must divide by 100 because 'dg' consists of 100 mg.

3. To convert from 'mg' to 'g', you must divide by 1000 because 'g' consists of 1000 mg.

8 0
3 years ago
Arrange the rational numbers −7/10, 5/−8, 2/−3in ascending order.
lilavasa [31]

Answer:

-8 / -7 / -3 / 2 / 5 / 10

Step-by-step explanation:

you have to arrange all the numbers from the smallest number to the greatest number, but in negative, always bigger number are considered small.

7 0
3 years ago
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