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3 years ago

-2a4 + 8a? – 9a Find the degree of the polynomial

Mathematics

1 answer:

juin [17]3 years ago

6 0

Answer:

Step-by-step explanation:

The given polynomial is :

p(x) = -2a⁴+8a³-9a

We need to find the degree of the polynomial.

Degree of the polynomial = degree is the value of the greatest exponent.

Here, the maximum value of the exponent is 4 in -2a⁴.

It means,

Degree of the polynomial = 4

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Jenna can type 140 words in 4 minutes. If she needs to type 385 words, how long would this take her? Explain how you got your an

bija089 [108]

Answer:

11 minutes

Step-by-step explanation:

Because she types only 140 words in 4 minutes so if you add

140+140=280

if you divide

140/4 you get 35

so every minute she types in 35 words. So multiply

11 times 35 and you exactly get 385.

7 0

3 years ago

Read 2 more answers

1. The great pyramid at Giza is the largest pyramid in the world, the area of its square base is 52,441 m squared, what is the l

AlladinOne [14]

Answer:

The length of each side of the base is $229\ m$

Step-by-step explanation:

we know that

The area of a square is equal to

$A=b^{2}$

where

b is the length side of a square

In this problem we have

$A=52,441\ m^{2}$

substitute in the formula

$52,441=b^{2}$

Square root both sides

$b=\sqrt{52,441}\ m$

$b=229\ m$

3 0

3 years ago

If a wheel with a radius of 80 inches spins at a rate of 50 revolutions per minute, find the approximate linear velocity in mile

Lubov Fominskaja [6]

$\bf \textit{arc's length}\\\\
s=rw\qquad 
\begin{cases}
r=radius\\
w=\textit{angular speed}
\end{cases}\qquad w=\cfrac{50 rev}{min}\cdot \cfrac{2\pi }{rev}
\\\\\\
w=\cfrac{100\pi }{min}\qquad s=80in\cdot \cfrac{100\pi }{min}\implies s=\cfrac{8000\pi\ in}{min}\\\\
-------------------------------\\\\
\textit{now to convert it to miles/hr}
\\\\\\
\cfrac{8000\pi\ in}{min}\cdot \cfrac{ft}{12in}\cdot \cfrac{mile}{5280ft}\cdot \cfrac{60min}{hr}\implies \cfrac{8000\pi \cdot 60\ in}{12\cdot 5280\ hr}$