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Alla [95]
3 years ago
6

If angle x=55% and angle y=35, calculate the following 1.cos(x+y) ​

Mathematics
1 answer:
Setler79 [48]3 years ago
4 0

Answer:

cos(X+Y) = cos(55+35) = cos(90) = 0

Step-by-step explanation:

cos(X+Y) = cosXcosY - sinXsinY

cos(55+35) = cos(55)cos(35) - sin(55)sin(35)

cos(55+35) = cos(55)cos(35) - cos(90-55)cos(90-35)

cos(55+35) = cos(55)cos(35) - cos(35)cos(55)

cos(55+35) = 0

cos(90) = 0

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Help please!!! asap! 10 points!
Anna11 [10]

Answer:

Fr^2/Gm_2=m_1

Step-by-step explanation:

What you do first is you have to cross-multiply so f*r^2 and 1*gm_1m_2 to get

Fr^2=Gm_1m_2. Next you will divide Gm_2 from both sides to get

Fr^2/Gm_2=m_1 as your answer.

5 0
3 years ago
You are dealt one card from a 52 card deck. Then the card is replaced in the deck, the deck is shuffled, and you draw again. Fin
AlladinOne [14]

Answer:

3/52

Step-by-step explanation:

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3 years ago
What is the first step?
kogti [31]

Answer:

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-5×÷5×=10/6/-5x

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8 0
3 years ago
A sporting goods store is having a 15% off sale on all items. Which functions can be used to find the sale price of an item that
asambeis [7]
The answers are: 
<span>ƒ(x) = x - .15x
</span><span>Sale = Original - .15(Original)
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Let sale price be f(x) and x be the original price. Discount was 15% = 0.15
f(x) = x - 0.15x

If f(x) is sale and x is the original, then:
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Let sale price be y and original price x:
y = x - 0.15x
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y = (1 - 0.15) * x
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3 years ago
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stepan [7]

Answer:

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Step-by-step explanation:

3 0
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