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3 years ago

The table shows the cost of renting movies online.

Mathematics

2 answers:

kotegsom [21]3 years ago

7 0

Answer: The answer is $3.99

I took the quiz and I got it right.

Svetach [21]3 years ago

4 0

C) The cost increases $3.99 for every additional movie rented.
Explanation.- Just decrease a number from it's consecutive larger number. That's all!

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4z - 8 = 20 Step by step

AysviL [449]

Answer:

z = 7

Step-by-step explanation:

4z - 8 = 20

Add 8 to each side

4z - 8+8 = 20+8

4z = 28

Divide each side by 4

4z/4 = 28/4

z = 7

5 0

2 years ago

8.) Plot its cost function

ss7ja [257]

The attached shows the two plots. The break-even points are near
x = 21
x = 256

5 0

3 years ago

Read 2 more answers

A gardener is installing fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden

ivanzaharov [21]

Answer:

(8) x+8 in (8)

Step-by-step explanation:

width times length

3 0

2 years ago

Find the equation of the line containing the point (-3,5) and having slope: 4

alina1380 [7]

Answer: d) y=4x+17

remember y=mx+b

good luck

5 0

2 years ago

Solve the equation : <img src="https://tex.z-dn.net/?f=%20%5Ccos%28x%29%20-%20%20%5Csin%28x%29%20%20%3D%20%20%5Csqrt%7B2%20%

Debora [2.8K]

Answer:

General solution is

$x = n \pi + \frac{\pi }{8}$

Step-by-step explanation:

Step(i):-

Given cos x - sin x = √2 cos (3 x)

Dividing '√2' on both sides , we get

$\frac{1}{\sqrt{2} } cos (x) - \frac{1}{\sqrt{2} } sin (x) = \frac{\sqrt{2} cos (3 x)}{\sqrt{2} }$

we will use trigonometry formulas

a) Cos ( A + B) = Cos A Cos B - sin A sin B

b) $cos \frac{\pi }{4} = \frac{1}{\sqrt{2} }$

Step(ii):-

$\frac{1}{\sqrt{2} } cos (x) - \frac{1}{\sqrt{2} } sin (x) = \frac{\sqrt{2} cos (3 x)}{\sqrt{2} }$

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

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

Step(iii):-

General solution of cos x = cos ∝ is x = 2 nπ+∝

we have $cos (\frac{\pi }{4}+x ) = cos 3 x$

The general solution of $cos (\frac{\pi }{4}+x ) = cos 3 x$ is

⇒ $3 x = 2 n \pi + (\frac{\pi }{4}+x )$

⇒ $3 x- x = 2 n \pi + \frac{\pi }{4}$

$2x = 2 n \pi + \frac{\pi }{4}$

final answer:-

General solution is

$x = n \pi + \frac{\pi }{8}$

8 0

2 years ago