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shtirl [24]
3 years ago
10

How do you solve this question ???

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0
A guy named insidious deleted my answer.
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The temperature one morning was 72.5*C it was 5.5 degrees warmer by noon and the temperature dropped 8.25 degrees by early eveni
cluponka [151]
72.5 + 5.5 = 78

78 - 8.25 = 69.75

Warmer means good up and colder means going down
8 0
3 years ago
Pls help! evaluate the sine of the real number, pls give exact answers
solong [7]

Answer:

 -\frac{\sqrt2}{2} \\  or exact is −0.70710678...

Step-by-step explanation:

Getting the point!

  1. If we look at the unit circle and we find -\frac{3\pi }{4} we see it is in the 3rd quadrant.
  2. We know that all points in the 3rd quadrant have both negative x and negative y values.
  3. We know that all radians with the base of 4 on the unit circle have the points of (\frac{\sqrt{2}}{2} ,\frac{\sqrt{2}}{2})
  4. Because we are in the 3rd quadrant and both x and y are negative we know the point of -\frac{3\pi }{4}  is (-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2})

Finding the sin!

  1. Because we know that sin is asking us for the y value
  2. We can just look at the point and find the y value!
  3. the y value is -\frac{\sqrt2}{2} \\
  4. Because this fraction does not need to be rationalized we are good!
  5. Use a calculator to find the exact value and you get -0.70710678...
  6. The final answer is  -\frac{\sqrt2}{2} \\ or exact is −0.70710678...

Hope this helps!! Please mark Brainliest!

4 0
2 years ago
Amanda bought 2 CDs that were each the same price. Including sales tax, she paid a total of $29.80. Each CD had a tax of $1.10 .
Len [333]

Answer:

13.80 there you go buddy

6 0
3 years ago
X2+5x+6,x2+x-6<br><br>please explain properly​
Ne4ueva [31]

Answer:

7x²+6x-6

Step-by-step explanation:

1 Combine similar terms

x²+5x+6x²+x-6

7x²+5x+x-6

2 Combine similar terms

7x²+5x+x-6

7x²+6x-6

5 0
3 years ago
If an acute angle increases, then its supplement
nevsk [136]

Answer:

gets smaller.

Step-by-step explanation:

Quick Answer

To give you a short quick answer, the supplement is going to have to decrease or get smaller.

Example

Suppose the acute angle is 10 (anything under 90 will do).

Then the supplement is going to be 180 - 10 = 170

Now suppose the acute angle increase to 50 degrees.

That means the supplement will go from 180 - 50 = 130

Conclusion

As the acute angle gets bigger, the supplement gets smaller. This is an important idea to get clear. Bigger and Smaller or More or Less can be ugly little words, so anytime you come across them, pay attention. It will make your life in science so much easier.

6 0
3 years ago
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