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ANTONII [103]
3 years ago
7

To complete step 3, which expression must fill in each blank space?

Mathematics
2 answers:
sweet [91]3 years ago
7 0

Answer:

The answer is A    cos(A)cos(B)

Step-by-step explanation:

I just took it

skad [1K]3 years ago
4 0

Answer: A cos(A)cos(B)

Step-by-step explanation:

You might be interested in
The square of a negative number is thirty-two more than four times the negative number.
tester [92]
Your answer would be:

(-x)^2 = 4(-x)+32

or

(-x)^2 = -4x+32
4 0
3 years ago
i have a special right triangle homework assignment but its to hard for me and i need help on answer this question
Anna35 [415]
I hope this helps you




45-45-90 isosceles right triangle



x=y



x^2+y^2=12^


x^2+x^2=12^2


2x^2=12^2


x^2=12^2/2


x=12/square root of 2


x=12.square root of 2/2


x=6.square root of 2
8 0
3 years ago
The task I need explaining is: how to show that an estimate of the mean time spent on homework is 64.8 minutes. Thanks!
xenn [34]
It's just an estimate.  There's no telling how close it is.

To estimate using just the information in the table,
ASSUME that the average of all the students in each
slot is the average time of that slot.

I know that's confusing.  I can't think of a better way to say it,
so here are two examples of what I mean.  Look at the table:

-- 6 students said that they spent between 0 and 30 minutes.
   ASSUME that those 6 students averaged 15 minutes each.

-- 21 students said that they spent between 60 and 90 minutes.
   ASSUME that those 21 students averaged 75 minutes each.

So, when you add up the times for all 50 students, you'll have

 (6 x 15 min) + (14 x 45 min) + (21 x 75min) + (9 x 105 min) =

When you total up all those times, divide it by 50 to estimate
the average per student.  

Remember ... it's only an estimate.
If the first group had 1 student that spent 2 minutes, and
the other 5 of them spent 29 minutes, then it won't work.
But you'll never know.
5 0
3 years ago
45°
ioda

Answer:

   x = \sqrt{\frac{7}{2} }

Step-by-step explanation:

<u><em>Explanation</em></u>

From given graph

          AC = √7

 Given angle ∝ = 45°

    cos\alpha = \frac{adjacentside}{Opposite side}

   cos45 = \frac{x}{\sqrt{7} }

      \frac{1}{\sqrt{2} } = \frac{x}{\sqrt{7} }

       x = \frac{\sqrt{7} }{\sqrt{2} }

      x = \sqrt{\frac{7}{2} }

     x = 1.8708

7 0
3 years ago
Show that the number 6 is a rational number by finding a ratio of two integers equal to the number
svlad2 [7]

9514 1404 393

Answer:

  6 = 6/1 = 12/2 = 18/3

Step-by-step explanation:

The simplest ratio of integers with a value of 6 is ...

  6 = 6/1

We can multiply numerator and denominator by any non-zero integer value to obtain an equivalent:

  6 = 12/2 = 18/3 = -54/-9

4 0
3 years ago
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