3 years ago

Complete the steps to find all zeroes of the function f(x) = x4 − 4x3 − 4x2 + 36x − 45. This function has roots.

2 answers:

7 0

Steps?

A graph shows zeros to be ±3. Factoring those out leaves the quadratic
(x-2)² +1
which has complex roots 2±i.

The function has roots -3, 3, 2-i, 2+i.

lapo4ka [179]3 years ago

5 0

this function has 4 roots.

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Brian bought a 15-pound bag of concrete. He spilled the bag into smaller bags that each holds 2 1/2 pounds. How many smaller bag

OleMash [197]

Let's first convert 2 and 1/2 into an improper fraction, it will help later:
$2 \frac{1}{2} = \frac{2*2+1}{2} = \frac{5}{2}$

Now, just divide:
$\frac{15}{ \frac{5}{2} }$

Which is the same thing as:
$15 * \frac{2}{5}$

Which you can simplify to:
$\frac{30}{5} = 6$

So your answer will be 6 smaller bags.

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3 years ago

tina has 3 red pens and 2 black pens in the bottom of her book bag.she randomly selects a pin to use then puts it back in her ba

Agata [3.3K]

Answer:

the probability that this girl pulls out a red pen is 3/5 or 60%

Step-by-step explanation:

there are 3 red pens

and 2 black pens.

that means there are 5 pens

so when she reaches down. she can pick up 3 out of the 5 pens

6 0

4 years ago

Jenny has a bag of jelly beans. Of all the jelly beans Jenny has there are a total of 20. If 13 of those jelly beans are green,

Sindrei [870]

Answer:

65% are green

Step-by-step explanation:

13 is 65% of 20

8 0

3 years ago

What is the horizontal asymptote of f(x)=-2x/x+1<br> A.-2<br> B.-1<br> C.0<br> D.1

Mrrafil [7]

A horizontal asymptote of a function f(x) is given by y = lim f(x) as x --> ∞ and x --> –∞. In this case,
$\lim_{x \to \infty} \frac{-2x}{x+1} = \lim_{x \to \infty} \frac{-2x}{x(1+ \frac{1}{x} )}\\
=\lim_{x \to \infty} \frac{-2}{1+ \frac{1}{x} }\\
= -2
$

Thus, the horizontal asymptote of f(x) is y = –2.

7 0

3 years ago

Read 2 more answers

Brainliest to whoever can answer this question the best + 50 pts.

Gnoma [55]