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3 years ago

Which graph represents the function f(x)=2⋅4x ? PLEASE HELP!!!

Mathematics

2 answers:

adoni [48]3 years ago

6 0

The plot's equation is y = 2x-4

DanielleElmas [232]3 years ago

3 0

The plot's equation is y = 2x-4

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Susan's checkbook had a balance of $422.05 on April 1. On April 5, she wrote a check for $106.30 to the auto repair shop. On Apr

kap26 [50]

The answer should be $100.75

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2 years ago

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Find the x and y intercepts of the graph of the linear equation 3x + 6y= 24

Darina [25.2K]

Answer:

y=-0.5x+4

Step-by-step explanation:

x intercept=-0.5/1

y intercept=4

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3 years ago

Convert the following sum into a product. cosx + cos3x + cos5x + cos7x

kvv77 [185]

Answer:

$4\cos x\cos (4x)\cos (2x)$

Step-by-step explanation:

Given: $cosx + cos3x + cos5x + cos7x$

To convert: the given sum into product

Solution:

Use formula: $\cos A+\cos B=2\cos \left ( \frac{A+B}{2} \right )\cos \left ( \frac{A-B}{2} \right )$

$cosx + cos3x + cos5x + cos7x=2\cos \left ( \frac{x+3x}{2} \right )\cos \left ( \frac{x-3x}{2} \right )+2\cos \left ( \frac{5x+7x}{2} \right )\cos \left ( \frac{5x-7x}{2} \right )\\=2\cos (2x)\cos (-x)+2\cos (6x)\cos (-x)\\=2\cos (2x)\cos (x)+2\cos (6x)\cos (x)\\=2\cos x\left [ \cos (2x)+\cos (6x) \right ]$

$cosx + cos3x + cos5x + cos7x=2\cos \left ( \frac{x+3x}{2} \right )\cos \left ( \frac{x-3x}{2} \right )+2\cos \left ( \frac{5x+7x}{2} \right )\cos \left ( \frac{5x-7x}{2} \right )\\=2\cos x\left [ \cos (2x)+\cos (6x) \right ]\\=2\cos x\left [2 \cos \left ( \frac{2x+6x}{2} \right )\cos \left ( \frac{2x-6x}{2} \right ) \right ]\\=2\cos x\left [ 2\cos (4x) \cos (-2x) \right ]\\=4\cos x\cos (4x)\cos (2x)$

4 0

3 years ago

Alex Ar [27]

Answer:

Step-by-step explanation:

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3 years ago

Whats an equation that represents 10 dollars for every hour

Bad White [126]

Answer:

m = 10t

Step-by-step explanation:

Let m represent the total money

Let t represent the number of hours

7 0

4 years ago