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3 years ago

I need help on question a and b. please help me asap?!?!?

Mathematics

1 answer:

Stolb23 [73]3 years ago

3 0

It isn’t possible to draw a graph on here

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Given f(x)=6(8-x)+5 What is the value of f(-2)

Anettt [7]

Answer:

Step-by-step explanation:

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4 years ago

Can someone help me please

klio [65]

Answer:

1,310.9854

Step-by-step explanation:

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3 years ago

3x^2+17x-9/x+4 what is the quotient

zvonat [6]

Answer:

The quotient of given expression is (3x+5).

Step-by-step explanation:

The given expression is

$\frac{3x^2+17x-9}{x+4}$

The coefficients of dividend are 3,17 and -9.

Use synthetic division to divide $3x^2+17x-9$ and $x+4$ .

The bottom row represents the coefficient of quotient and remainder.

The given expression can be written as

$\frac{3x^2+17x-9}{x+4}=3x+5-\frac{29}{x+4}$

Therefore the quotient of given expression is (3x+5).

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3 years ago

What is the perimeter of triangle ABC 12 units 13units 14units 18units

emmainna [20.7K]

Answer:

Step-by-step explanation:

The length of side AC can be found by counting the squares between AC: 8.

The length of side BC can be found using the Pythagorean Theorem. B is 3 units to the right of C and 4 units above C. Thus:

|BC| = √(3² + 4²) = √25 = 5.

|AC| has the same length: 5.

Thus, the perimeter of this triangle is 5 + 5 + 8, or 18.

4 0

3 years ago

Read 2 more answers

The water level, measured in feet above mean sea level, of Lake Lanier in Georgia, USA, during 2012 can be modeled by the functi

FrozenT [24]

Answer:

May 4th, 2012.

Step-by-step explanation:

The highest level can be found with the help of the First Derivative and Second Derivative Tests. First and second derivatives of the function are, respectively:

$l'(t) = 0.04323\cdot t^{2}-0.8354\cdot t +2.703$

$l''(t) = 0.08646\cdot t - 0.8354$

The First Derivative Tests consists on equalizing the first derivative to zero and finding the critical points.

$0.04323\cdot t^{2}-0.8354\cdot t +2.703 = 0$

Roots are $t_{1} \approx 15.672$ and $t_{2} \approx 4.077$ . just the second root offer a realistic solution and is test by the second derivative.

$l''(4.077) = -0.482$ (which leads to a maximum).

Given that a year has 365 days or 12 months, the highest water level occurs at day:

$n = \frac{4.077}{12} \cdot (365\,days)$

$n \approx 124$ (May 4th).

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3 years ago