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3 years ago

Which expression is equivalent to -6(-2/3+2X)?

Mathematics

1 answer:

kkurt [141]3 years ago

5 0

Answer:

4-12x

Step-by-step explanation:

-6(-2/3)= 12/3=4

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If θ is an angle in standard position that terminates in Quadrant IV such that cosθ = 3/5, then cosθ/2 = _____. -

Sveta_85 [38]

Answer:

$cos \frac{\theta}{2}= 0.894$ .

Step-by-step explanation:

Given:

$cos\ \theta= \frac35$

We need to find $cos \ \frac{\theta}{2}$

Solution:

$cos\ \theta= \frac35$

First we will find the value of $\theta$ .

Now taking $cos^{-1}$ on both side we get;

$\theta= cos^{-1} \ \frac{3}{5}\\\\\theta = 53.13$

Now we will find the $\frac{\theta}{2}$ .

$\frac{\theta}{2}$ = $\frac{53.13}{2} = 26.565$

Now we will find $cos \ \frac{\theta}{2}$ we get;

$cos \frac{\theta}{2}=cos\ 26.565 = 0.894$

Hence $cos \frac{\theta}{2}= 0.894$ .

4 0

3 years ago

What fraction is equal to 5/8

tatuchka [14]

0.625 that’s the answer cause u have to divide the top and the bottom

6 0

4 years ago

Read 2 more answers

What is the height of the building? need help ASAP!

stiv31 [10]

Answer:

178.2 ft

Step-by-step explanation:

$\sin(60) = \frac{x}{200} \\ \frac{ \sqrt{3} }{2} = \frac{x}{200} \\ x = 100 \times \sqrt{3}$

So,

$h = 5 + x = 5 + 100 \times \sqrt{3} = 178.2$

6 0

3 years ago

The table below shows the relationship between the number of parents in a household and the number of children in the same house

jolli1 [7]

Answer: ???

Step-by-step explanation: There is no table shown.

7 0

3 years ago

Consider the equation r = 5 sin(theta). Use the drop-down boxes to complete the sentences.

Alecsey [184]

9514 1404 393

Answer:

circle
y-axis
5 units

Step-by-step explanation:

It can be helpful to actually see the graph. For 0 ≤ θ ≤ π, a circle is developed above the x-axis, symmetrical about the y-axis (θ=π/2). For π ≤ θ ≤ 2π, the same circle is traced again in the same direction (CCW), as values of r are negative for those angles.

The circle has a radius of 2.5, centered at (0, 2.5), so the diameter is 5 units. The length of the diameter is the farthest distance between any two points on a circle.

8 0

3 years ago