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finlep [7]
3 years ago
6

Which sum or difference identity could be used to prove that sin(pie + q) = -sin q

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

<em><u>sin(a+b) = sin(a)cos(b) + cos(a)sin(b)</u></em>

sin(π+q) = sin(π)cos(q) + cos(π)sin(q)

sin(π) = 0

cos(π) = -1

therefore

sin(π+q) = 0*cos(q) -sin(q) = -sin(q)

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What would 4.48295598791 round up to
Vlad [161]

This would round up to 4. That's the nearest whole.

If it were to be 4.50 or above it would be rounded to 5.

  • Nearest 10th: 4.50
  • Nearest 100th: 4.500
  • Nearest 1,000th: 4.5000
  • Nearest 10,000th: 4.50000

       And so on...

6 0
4 years ago
Read 2 more answers
The second of two numbers is 3 less than twice the first. Their sum is 36. Find the numbers.
swat32
<span>The first number = x
The </span>second number = 2x-3

x + 2x-3 = 36
3x = 36+3
3x = 39
x = 39/3
x = 13

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7 0
4 years ago
A candy machine contains 100 gumballs: 23 grape, 26 blueberry, 16 cherry, and 35 strawberry. What is the experimental probabilit
balu736 [363]
The answer is 13/50th or 26%
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4 0
4 years ago
QUICK HELP!!!!!!!!!!!!!!!!!!!!!!!!
vodka [1.7K]

Answer:

In this problem it gives you the equation you need to solve it.  

Y=10x+190

The question asks for the number of calories if the snack has 35 grams of fat.  The grams of fat is the independent variable so it is going to be x.  So just substitute the x in the equation with 35.

Y=10×35+190

Y=350+190

Y= 540

So for a snack that has 35 grams of fat, it would have 540 calories.

7 0
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Find the distance and midpoint between the pair of points. A(-1, 0), B(2, -4)
Greeley [361]

Answer:

distance is 5

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Step-by-step explanation:

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