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Shkiper50 [21]
3 years ago
5

Can someone do these? i'll give brainleist to whoever does them all​

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0
You have to multiply 6x6x6= 218
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Cos^2(2theta)+ 2cos(2theta)+1=0
Tema [17]

Answer:

θ = π n + π/2 for n element Z

Step-by-step explanation:

Solve for θ:

1 + 2 cos(2 θ) + cos^2(2 θ) = 0

Write the left hand side as a square:

(cos(2 θ) + 1)^2 = 0

Take the square root of both sides:

cos(2 θ) + 1 = 0

Subtract 1 from both sides:

cos(2 θ) = -1

Take the inverse cosine of both sides:

2 θ = 2 π n + π for n element Z

Divide both sides by 2:

Answer:  θ = π n + π/2 for n element Z

4 0
3 years ago
A private school determines their annual profits from the function
qwelly [4]

Answer:

B

Step-by-step explanation:

Its 210,750 i took the quiz. You have to plug in 750 to all the x's.

5 0
3 years ago
In a newspaper, it was reported that yearly robberies in Springfield were up 50% to 93 in 2013 from 2012. How many robberies wer
DiKsa [7]

Answer:

There were 62 deaths

Step-by-step explanation:

In this question, we are asked to calculate the number of robberies in 2012.

From the question we can identify that the number of robberies were up 50% to 93. What this means is that the number is simply 150% of the old number.

Now, let’s represent the number of deaths in 2012 by x

Mathematically;

150% of x = 93

150/100 * x = 93

150x = 93 * 100

150x = 9300

x = 9300/150

x= 62

This means there were 62 deaths in the year 2012

8 0
4 years ago
Read 2 more answers
How many solutions are there to the system of equations graphed below if the lines are parallel?
damaskus [11]
Zero
C is the correct option.
Step-by-step explanation:
In the given graph, the given lines are parallel to each other and hence never intersect.
Now, we know that the intersection point (s) of two curves gives us the solution.
Here the lines are parallel to each other and hence do not intersect each other.
Thus, there would not be any intersection point.
Hence, the system of equations has no solution.
C is the correct option.

Hope this helps

MARK AS BRAINLY PLSSSD
3 0
3 years ago
A como of rope 603 feet long is cut into 25 equal pieces. What is the length of each piece? Express your answer as a mixed numbe
Anna007 [38]
603/25=24 and 3/25 (mixed number)
24.12 (decimal)
3 0
4 years ago
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