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3 years ago

Julie and Tom each earn money at thier part time job.

Mathematics

1 answer:

Fudgin [204]3 years ago

5 0

And then they bought food

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11 times a number increased by 2 is the same as 6 more than 9 times the number. Find the number.

7nadin3 [17]

11x+2 = 9x+6. Subtract 2 from both sides. 11x = 9x+6. subtract 9x from both sides. 2x = 4, divide both sides by 2. x = 2. Substitute the x with 2 and check to see it it works. The numbers should equal each other.

8 0

3 years ago

I need help fast pleasee

trapecia [35]

Answer:

y = - cos ( $\frac{3}{4}$ x + $\frac{\pi }{4}$ )

Step-by-step explanation:

y = A cos ( Bx + C) + D

Vertical shift D = 0

A = - 1

Compression / Stretching B

Period of given function is $\frac{8\pi }{3}$

Period of cos x is 2π

$\frac{8\pi }{3}$ = $\frac{2\pi }{B}$ ⇒ B = $\frac{3}{4}$

Horizontal shift is C ÷ B

Horizontal shift of given function is $\frac{\pi }{3}$

$\frac{\pi }{3}$ = C ÷ $\frac{3}{4}$ ⇒ C = $\frac{\pi }{4}$

So, the equation of given function is

y = - cos (  $\frac{3}{4}$  x +  $\frac{\pi }{4}$  ) 

4 0

2 years ago

A pack with 6 cans of juice costs 3.48. What it the unit price?

nevsk [136]

3.48/6 = 0.58 per can

3 0

3 years ago

Given cos 0 = 11/6 and angle 0 is in Quadrant I, what is the exact value of sin 0 in

user100 [1]

1 = sin²0 + cos²0

sin²0 = 1 - cos²0

sin²0 = 1 - 11/36

sin²0 = 25/36

sin 0 = 5/6 or -5/6

In the first quadrant, the values for sin, cos and tan are positive.

sin0 = 5/6

8 0

3 years ago

Average of 766 and 878

Greeley [361]

(766+878)÷2=1644÷2=822

7 0

3 years ago