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olasank [31]
3 years ago
11

Tan theta * tan 2theta = 1, cos 2theta =?

Mathematics
1 answer:
lilavasa [31]3 years ago
6 0

Answer:123445

Step-by-step explanation: sorry I need to answer a question to get a free answer so sorry

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Felice knows that segment RS || segment QT. She wants to use the definition of a parallelogram to prove that the quadrilateral i
tangare [24]

Answer:

  see below

Step-by-step explanation:

The definition of a parallelogram is that opposite sides of the quadrilateral are parallel. Felice already knows one pair of opposite sides is parallel. By showing the slope of RQ is the same as the slope of ST, she can show the other pair of opposite sides is parallel, hence the figure is a parallelogram.

__

The other answer choices are essentially nonsense.

8 0
4 years ago
What is a number line for 5a + 18 < -27?
Alexandra [31]

a < -9

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

                    5*a+18-(-27)<0  

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  5a + 45  =   5 • (a + 9)  

Equation at the end of step  1  :

Step  2  :

2.1    Divide both sides by  5  

Solve Basic Inequality :

2.2      Subtract  9  from both sides

           a < -9

3 0
4 years ago
Read 2 more answers
Round 525,600 to the nearest ten thousand
Tatiana [17]

Answer:530,000

Step-by-step explanation: ten thousand is the 2 so you would round the number to the right up or down and it is 5 so you round up

4 0
3 years ago
*!HELP!* Mark wants to order a pizza. Drag and drop the correct number or phrase into each box to complete the explanation for w
fredd [130]

Answer:

A. 0.08 B. 0.09 and C. 12-inch hopefully im right

8 0
2 years ago
Maggie needs to spend at least six hours each week practicing the piano. She has already practiced 3
grandymaker [24]

Answer:

t ≥ 1.5

Step-by-step explanation:

Lets take time for practicing the piano to be t

The number of hours to practice per week should be at least 6 hours

This is written as t ≥ 6

She already practiced 3 hours this week, thus the remaining hours to practice should be

t ≥ 3

The minimum remaining hours to practice for the remaining 2 days should be

t=3

If these hours are evenly divided, then in a single day she should practice

for t ≥ 1.5

8 0
3 years ago
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