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Nookie1986 [14]
1 year ago
12

s 1 05 1 -1.5 -05 0.5 1 -0.5 -1.5 If the cosine of in this unit circle is a, what would be true of the cosine of in a circle wit

h a radius of 2?
Mathematics
1 answer:
viva [34]1 year ago
7 0

In the unit circle

\cos ^2x+\sin ^2x=1x^2+y^2=r^2

Where r is the radius of the circle

x- coordinate represents cos angle

cos angle = x/r

Since r = 2

cos angle = x/2

y-coordinate represents sin angle

sin angle = y/r

sin angle = y/2

Because the question is incomplete

we can not find which is true

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By 3:00 pm, the temperature increased by another 5 degrees Fahrenheit was the temperature at 3:00pm positive or negative?
Ad libitum [116K]

Answer:

Part a) The temperature at noon was -3°F

Part b) The temperature at 3:00 pm was +2°F

Part c) The temperature at 11:00 pm was -6°F

Step-by-step explanation:

The complete question is

When Leo woke up he saw that the temperature was -8°F. By noon the temperature has increased 5°F. Part a) What was the temperature at noon?

Part b) By 3:00 pm, the temperature increased by another 5 degrees Fahrenheit was the temperature at 3:00 pm positive or negative?

Part c) By 11:00 pm, the temperature had dropped 8°F. Was the

temperature at 11:00 PM positive or negative? Explain.​

Part a) we know that

You can use a number line to adds the numbers

-8+5=-3°F

therefore

The temperature at noon was -3°F

Part b) we know that

the temperature increased by another 5 degrees

You can use a number line to adds the numbers

-3+5=+2°F

therefore

The temperature at 3:00 pm was +2°F

Part c) we know that

the temperature had dropped 8°F

You can use a number line to adds the numbers

2-8=-6°F

therefore

The temperature at 11:00 pm was -6°F

6 0
3 years ago
PLEASE HELP!!!! ASAP ALMOST DUE
lions [1.4K]

Answer:

idk im not that smart

Step-by-step explanation:

6 0
3 years ago
Simplify: -<br> 3<br> 2<br> (4x + 3)
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Answer:

-128x-96

Step-by-step explanation:

-32x×4x -32×3

-128x-32×3

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

4 0
3 years ago
what in a equation to represent the relationship "a number decreased by negative 7 and is the same thing as 48
murzikaleks [220]
I think it would be n-(-7)=48
6 0
3 years ago
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