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erastovalidia [21]
3 years ago
9

Anyone, please help me!!!​

Mathematics
2 answers:
lianna [129]3 years ago
7 0

Answer:

Step-by-step explanation:

Hint:  1- 2sin²x = Cos 2x

LHS = 1 - 2Sin² (π/4 - Ф/2)

        =  Cos 2 *(π/4 - Ф/2)

        = Cos 2*π/4 - 2*Ф/2

         = Cos π/2 - Ф

         = Sin Ф =  RHS

mart [117]3 years ago
3 0

Answer:

RHS=sinA

Step-by-step explanation:

LHS=1-2sin^2(45-A/2)

=cos2(45-A/2)

=cos(90-A)

=sinA proved.

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The Pit BBQ food truck sells two combo packs of ribs and brisket. Combo A contains 10 oz of brisket and 16 oz of ribs and sells
GenaCL600 [577]

The maximum revenue is $700 which is at 16 combo A and 12 combo B.

<h3>Inequality</h3>

An inequality is an expression that shows the non equal comparison of two or more numbers and variables.

Let x represent the number of combo A and y represent the number of combo B, hence:

10x + 20y ≤ 400 (1)

Also:

x + y ≤ 28   (2)

The solution is at (16,12). Hence:

Revenue = 21.25 * 16 + 30 * 12 = $700

The maximum revenue is $700 which is at 16 combo A and 12 combo B.

Find out more on Inequality at: brainly.com/question/24372553

3 0
2 years ago
12. A culture of bacteria in the lab doubles every 6 minutes. Assume the growth follows a continuous exponential
kondor19780726 [428]

Answer:

18 minutes

Step-by-step explanation:

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6 0
3 years ago
PLEASE DONT SKIP<br><br><br> show all work
neonofarm [45]

Answer:

i don't see nothing

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If y varies directly as x and y = 3 when x = - 9, then find x when y = 5.
Rus_ich [418]

Answer:

d. - 15

Step-by-step explanation:

The equation for direct variation is

y = kx

We know y =3 when x = -9

3 = k(-9)

Divide by -9

3/-9 = -9k/-9

-1/3 = k

The equation is then

y = -1/3 x

We know y = 5

5 = -1/3 x

Multiply each side by -3

-3*5 = -3*-1/3x

-15 = x

3 0
3 years ago
50 POINTS PLEASE HELP!!!!!!!!!! ALL SH!+Y ANSWERS REPORTED.
NNADVOKAT [17]
62=14 + 2x

62-14=2x

48=2x

48/2=x

24 answer: 24

hope this helped
6 0
3 years ago
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