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3 years ago

(8x-17)(5x+19) Find the converse and x

Mathematics

1 answer:

pychu [463]3 years ago

4 0

$(8x-17)(5x+19)\\40x^{2}+152x-85x-323\\ 40x^{2}+67x-323$

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B) y = log2 (4" - 4)<br> find the inverse of this equation

GuDViN [60]

Answer:

$y = \frac{1}{4} \times {2}^{x} - 1$

Step-by-step explanation:

Assuming the given logarithmic equation is

$y = \log_{2}( {4}{x } - 4)$

We interchange x and y to get:

$x= \log_{2}( {4}{y} - 4)$

We solve for y now:

${2}^{x} = {4}{y} - 4$

We add 4 to both sides to get;

${2}^{x} + 4 = 4y$

Divide through by 4:

$y = \frac{1}{4} \times {2}^{x} - 1$

4 0

4 years ago

A large aquarium has 6 more fish than a small aquarium. There are 19 fish in the large aquarium. How many fish are in the small

iVinArrow [24]

Answer: 13

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Show work. This is a BC calculus problem.

stepan [7]

Answer:

Step-by-step explanation:

Remember that the limit definition of a derivative at a point is:

$\displaystyle{\frac{d}{dx}[f(a)]= \lim_{x \to a}\frac{f(x)-f(a)}{x-a}}$

Hence, if we let f(x) be ln(x+1) and a be 1, this will yield:

$\displaystyle{\frac{d}{dx}[f(1)]= \lim_{x \to 1}\frac{\ln(x+1)-\ln(2)}{x-1}}$

Hence, the limit is equivalent to the derivative of f(x) at x=1, or f’(1).

The answer will thus be D.

5 0

3 years ago

Corinne solved the equation below:

tia_tia [17]

Answer: she is NOT correct the answer should be X= 19

How?:

the equation was 5x = 95

the 5 and x is being multiplied the opposite of multiplication is dividing

so 95/5= 19

therefor x= 19 and NOT 90

5 0

3 years ago

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6) Evaluate for x = 3:<br> 3•4x/2

Nikolay [14]

Answer:

Step-by-step explanation:

3×4(x)/2

Plug in 3 to x

3×4(3)/2

3×12/2

36/2

5 0

3 years ago