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Mashcka [7]
2 years ago
6

Prove that cos1° cos2° cos3°...cos180° = 0​

Mathematics
1 answer:
leva [86]2 years ago
4 0

Answer:

I don't know‍♀ sorrry bro

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17/39 + 11/12 −( 5/12 + 4 /39 )
Nana76 [90]

Answer:

.83333333 or 5/6

Step-by-step explanation:

Make common denominator

204/468 + 429/468 = 633/468 - (195/468 + 48/468)

Simplify: 633/468 - 243/468

390/468 can be further broken down to 5/6 if you divide by a common factor which is 78.

8 0
3 years ago
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The sum of three times a number and seven is greater than four times the number
iris [78.8K]
3n + 7 ><span> 4n
-3n        -3n
7 > n
n</span> < 7
7 0
3 years ago
Tell me to write a real workd problem for the equation 4 ×y =60
kodGreya [7K]
Benny had 60 cupcakes but only 4 tray to put them on, how many can go on each tray. Show your work
3 0
3 years ago
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Alex and Freddy collect stamps. The number of stamps in Alex’s collection is in ratio 3:5 to the number of stamps in Freddy’s co
Tems11 [23]
Suppose Alex has 3x stamps, Freddy has 5x stamps. After Freddy gives Alex 10 stamps, Alex has 3x+10 while Freddy has 5x-10
the new ratio is 7 to 9, so we have the equation: (3x+10)/(5x-10)=7/9
9(3x+10)=7(5x-10)
27x+90=35x-70
160=8x
x=20
So Alex has 3*20=60 stamps while Freddy has 5*20=100. Together they have 160
4 0
3 years ago
Work out the percentage change to 2 decimal places when a price of £8.95 is increased to £10.​
kicyunya [14]

Answer:

12% increase

Step-by-step explanation:

Divide the difference between the two prices by the original price:

1.05/8.95

= 0.12

So, the percent change is 12%

6 0
3 years ago
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