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Afina-wow [57]
3 years ago
8

What value of 0 makes sin0=cos60 a true statement?

Mathematics
1 answer:
timama [110]3 years ago
4 0

Answer:

A

Step-by-step explanation:

Using the co function identity

sin x = cos(90 - x) = cos(90 - 30) = cos60° ← x = 30°, thus

sin30° = cos60°

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Help pls/plz/plx/plszx
rewona [7]

Answer:

(letters are going in order from top to bottom)

<u>Statistical</u>                                        <u>Nonstatistical</u>

                                                         A

                                                         B

                                                         C

D

                                                         E

F

6 0
2 years ago
Read 2 more answers
The vectors x and y are unit vectors that make and angle of 30 degrees with each other. Calculate the value of | 2x + y | and th
ICE Princess25 [194]

Answer: the value of | 2x + y | = 1.39

the direction of 2x + y = 21° 

Step-by-step explanation:

Given that the vectors x and y are unit vectors that make and angle of 30 degrees with each other.

Let assume that unit vector x is along the positive x-axis, and unit vector y is at +30°.

Therefore 

2x-y=

2< 1,0 > - < cos(30),sin(30) >

=<2-(√2)/2, 0-1/2>

and

|2x-y|=√((2-(√2)/2)² + (-1/2)^2)

=1.3862 

Therefore the value of | 2x + y | = 1.39

=atan((-1/2)÷(2-(√2)/2))

=atan(1.29289/-0.5)

=-0.369 radians

= -21.143° 

Therefore the direction of 2x + y is

21° 

5 0
3 years ago
What are the coefficients in the expression 5x3 + 14x2 - 2x + 6?
Lostsunrise [7]

Answer: 5,14 and -2

Step-by-step explanation:

The coefficient  is the number next to the variable.

So this case the coefficients are 5,14 and -2

6 0
2 years ago
Read 2 more answers
What is an equation that relates weight on earth and weight on the moom
stellarik [79]
W=mg 

<span>Where: </span>

<span>Weight = mass * acceleration due to gravity </span>

<span>So let's say I want to work out my weight on the moon. I know I weigh about 70kg (which would be N), but I can't use that figure for the calculation on the moon. That is what I weigh on Earth, so let's look at the equation... </span>

<span>70kg = mass * 9.81m/s^2 </span>

<span>Where 9.81m/s^2 is the acceleration due to gravity on the surface on the earth. I want to get rid of that, so let's work out my mass by division; </span>

<span>70/9.81 = 7.14kg </span>

<span>I googled the acceleration of gravity on the Moon, which was = 1.6m/s^2 </span>

<span>Let's use that in the same equation W=mg </span>

<span>W = 7.14kg * 1.6m/s^2 = 11.42N

</span><span>On the Moon, you would weigh approximately one sixth of your weight on Earth, so if your bathroom scales tell you you weigh 120 pounds, there you would weigh 20 pounds.
</span>
<span>Moon`s gravitational pull is about one-sixth to the gravitational pull on earth hence weight on moon is about one-sixth of the weight on earth.</span>
8 0
3 years ago
How would you write 7/10 as a percent using the algorithm method?
igor_vitrenko [27]

Answer:

70%

Step-by-step explanation:

4 0
3 years ago
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