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kari74 [83]
2 years ago
10

Kurt conducted a survey to find the favorite type of music of his classmates

Mathematics
1 answer:
klio [65]2 years ago
7 0

Answer:

True

Step-by-step explanation:

9+5=14

And rock is at 7

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What is the value of cosθ given that (−2, −3) is a point on the terminal side of θ ?
snow_tiger [21]

Answer:

-0.555

Step-by-step explanation:

The terminal point of the vector in this problem is

(-2,-3)

So, it is in the 3rd quadrant.

We want to find the angle \theta that gives the direction of this vector.

We can write the components of the vector along the x- and y- direction as:

v_x = -2\\v_y = -3

The tangent of the angle will be equal to the ratio between the y-component and the x-component, so:

tan \theta = \frac{v_y}{v_x}=\frac{-3}{-2}=1.5\\\theta=tan^{-1}(1.5)=56.3^{\circ}

However, since we are in the 3rd quadrant, the actual angle is:

\theta=180^{\circ} + 56.3^{\circ} = 236.3^{\circ}

So now we can find the cosine of the angle, which will be negative:

cos \theta = cos(236.3^{\circ})=-0.555

7 0
3 years ago
Multiply and simplify <br> √27 x √12 x √9
Katarina [22]

√27 x √12 x √9

= √2916

=54

8 0
3 years ago
Read 2 more answers
Evaluate the algebraic expression for the given values of x = 3 and y = 4. Tx - 2y - 1 = I​
faltersainse [42]

Answer:

7 or -9, dependent on if 2y is or is not negative

Step-by-step explanation:

If 2y is NOT negative

2(4)-1=i

8-1=i

i=7

If 2y IS negative

-2(4)-1=i

-8-1=i

i=-9

8 0
3 years ago
HELP! My teacher didn't teach half the material! How do I do this!?!?!?!
Sladkaya [172]

Answer:

<h2>x=-0.3</h2>

Step-by-step explanation:

1-(-7.2x+3.5)=5+3(7.4x-1) first parenthesis

1+7.2x-3.5=5+22.2x-3  

7.2x-2.5=2+22.2x (x on one side and numbers on other)

22.2x-7.2x= -2-2.5

15x=4.5 divide by 15

x=-4.5/15

<h2>x=-0.3</h2>

5 0
3 years ago
How do you choose the level of accuracy given the limitations of a situation?
Airida [17]
Accuracy is how close a measured value is to the actual (true) value.
4 0
3 years ago
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