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3 years ago

(16x2 - 25) ÷ (4x + 5) (its dividing polynomials)

Mathematics

1 answer:

miss Akunina [59]3 years ago

7 0

Answer:

4x-5, x= 5/4

Step-by-step explanation:

Basically factor the top part and see if you cancel bottom!

16x^2 -25 , you'll realize it's a difference of squares,

Hence, factored form would be like this:

(4x+5)(4x-5)

Hence, (4x+5) cancels out and your answer is 4x-5

x= 5/4

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

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Step 1 : Write the formula for calculating a monthly compound interest rate and for calculating an annually compounded interest rate.

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Step 2 : Lets assume that P is $100 in both banks and time is 1 year.

Step 3 : Lets substitute the values to find out which one is better.

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Answer:

The first choice, $(-\infty, 7) \cup (7, \infty)$ .

Step-by-step explanation:

The dashed vertical line is a vertical asymptote. The x-coordinate of all points on this vertical asymptote are equal to 7. In other words, when the x-value of a point on the graph approaches $7$ , its y-value approaches infinity (or negative infinity.)

Either way, the graph is not defined for $x = 7$ . The point $7$ should thus be excluded from the domain of the graph.

The graph is apparently defined for all other x-values. The domain of the function should thus be all real numbers with the exception of $x = 7$ . Here's how to write that in interval notation:

The set of all real numbers can be expressed as the interval $(-\infty, \infty)$ . Note that infinity $\infty$ (or $(- \infty)$ itself isn't a real number. The round brackets indicate that both endpoints are excluded from the from the interval.
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The set of all real numbers that is not equal to $7$ is the union of all real numbers less than $7$ and all real numbers greater than $7$ . The union operator $\cup$ connects two intervals.

In other words, the domain is $(-\infty, 7) \cup (7, \infty)$ .

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