Choose the correct classification of 2x4 − 8x5 − 2x2 + 5.

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

6 0

Answer:

5th degree polynomial

Step-by-step explanation:

We have been given the polynomial $2x^4-8x^5-2x^2+5$

We know that the highest exponent of a polynomial is called the degree of the polynomial.

The highest degree of the given polynomial is 5. Hence, from the above written concepts, we can say that the degree of the polynomial os 5.

Thus, the polynomial is 5th degree polynomial.

First option is correct.

Dennis_Churaev [7]3 years ago

4 0

I would say to the 5th degree because that's the highest exponent there but not 100% sure but I'm pretty sure
Sorry I can't help you more but I hope this helps ome

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The water level of a lake fell by 1 1/4 in. during a 1 1/2 week long drought what is the average rate at which the water level c

Luda [366]

Answer:

$\frac{5}{6}$ inches per week

Step-by-step explanation:

This is a very simple ratio problem. Basically,

<em>If $1\frac{1}{4}$ inches in $1\frac{1}{2}$ week, then HOW MANY INCHES (let it be x) in 1 week???</em>

<em />

We set up two ratios and cross multiply and solve for x:

$\frac{1\frac{1}{4}}{1\frac{1}{2}}=\frac{x}{1}\\1\frac{1}{4}*1=1\frac{1}{2}*x\\1\frac{1}{4}=1\frac{1}{2}x\\x=\frac{1\frac{1}{4}}{1\frac{1}{2}}\\x=\frac{\frac{5}{4}}{\frac{3}{2}}\\x=\frac{5}{4}*\frac{2}{3}\\x=\frac{5}{6}$