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Elodia [21]
3 years ago
10

CosA×cos2A+sinA×sin2A=cos (2A-A)​

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

csc

A

, as desired!

Step-by-step explanation:

cos

2

A

sin

A

+

sin

2

A

cos

A

,

=

cos

2

A

cos

A

+

sin

2

A

sin

A

sin

A

cos

A

,

=

cos

(

2

A

−

A

)

sin

A

cos

A

,

=

cos

A

sin

A

cos

A

,

=

1

sin

A

,

=

csc

A

, as desired!

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the cost of a 12-ounce bag of cashews is $5.86 what is the cost per ounce of the cashews to the nearest penny
ddd [48]

Answer:

Answer:5.86÷12=0.5 in nearest penny

Step-by-step explanation:this number kind of problem u solve it using inversely proportional method one one quantity is decreasing which is the ounce

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Trevor has 3 2/5 pieces of cake left over. If she wants to split it between her and her 9 friends, how much will each
bagirrra123 [75]

Answer:

17/50.

Step-by-step explanation:

If we convert 3 2/5 into an improper fraction, we get 17/5.

If you don't read the question carefully, it's easy to think that the answer would be 17/5 ÷ 9. However, this is wrong.

The question says "her AND her 9 friends," so there are 9+1=10 people total.

Thus, the answer would be

17/5 ÷ 10 = 17/5 * 1/10 = 17/50.

5 0
3 years ago
Write an equation to solve the following. Show all your work, including the steps for solving the equation and checking your ans
SpyIntel [72]
Equation
-4x + 16 = -116

solve for x
-4x + 16 = -116

subtract 16 to both sides
-4x + 16 - 16 = -116 - 16

simplify
-4x = -132

divide -4 to both sides
-4x/-4 = -132/-4

simplify
x = 33

answer: the number is 33
4 0
3 years ago
Determine the quadratic function of 2,-3/5
Tanzania [10]

I guess you mean that the zeroes are 2 and -3/5.

In factor form the function  could be

f(x) = (x - 2)(3x + 5)

expanding we get

f(x) = 3x^2 -x - 10  

6 0
4 years ago
The equation y = 16 - 2x represents the amount y (in ounces) of trail mix remaining after you eat x servings.
BlackZzzverrR [31]

Answer:

a) x is the independent and y in the dependent

b) y=4

Step-by-step explanation:

b.) How much of the trail mix remains after you eat 6 servings?

Substitute 6 into the x variable.

y=16-2(6)

y=4

5 0
3 years ago
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