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3 years ago

8

please help it’s due soon marking brainlest look at my examples determine whether the two expressions are equivalent. if so tell

what peppery is applied. if not explain why.

1 answer:

notsponge [240]3 years ago

8 0

Answer:

1. Yes

2. Yes

3. No

4. No

5. No (that is plus not multiply)

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X+y=20 3x-3y=30 Which values of x and y satisfy this system of equations?

puteri [66]

x +y = 20 ( rewrite as x = 20-y)

3x - 3y =30

3(20-y) - 3y = 30

60-3y - 3y = 30

60-6y = 30

-6y = -30

y = -30 / -6 = 5

x=20-5 = 15

x = 15, y = 5

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4 years ago

1. Consider f(x) = 3x - 5

Rzqust [24]

Answer:

3

Step-by-step explanation:

Here we have the function

$f(x)=3x-5$

We want to find the following ratio:

$\frac{f(x+h)-f(x)}{h}$

Note that the limit of this for $h\rightarrow 0$ is equivalent to the derivative of the function.

Here we have:

$f(x+h)=3(x+h)-5=3x+3h-5$

And

$f(x)=3x-5$

Therefore we have

$f(x+h)-f(x)=3x+3h-5-(3x-5)=3h$

And therefore,

$\frac{f(x+h)-f(x)}{h}=\frac{3h}{h}=3$

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3 years ago

Be sure to use a comma after three please value of one need it 945×1000

JulijaS [17]

Answer:

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Step-by-step explanation:

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3 years ago

For five mathematics tests, your scores were 81, 86, 81, 76, 71. what was your average score?

trasher [3.6K]

add them together then divide by 5

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