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Veseljchak [2.6K]
4 years ago
11

How many answers are in each of these three questions: 1. x squared minus three x plus four equals zero 2. Two x squared plus fo

ur x minus five equals zero 3. X squared plus eight x plus sixteen equals zero
Mathematics
1 answer:
vaieri [72.5K]4 years ago
6 0
1. No solutions ( no answers) 2 . 2 answers 3. 1 answer
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Given this table of values, what is the value of f(-4.5) ? <br><br> help pelase !!
True [87]

Answer:

12.6

Step-by-step explanation:

f(-4.5) means "what is the y-value when x equals -4.5?"

We see that when x = -4.5, our y or f(x) value is 12.6

7 0
3 years ago
Which is a measure of the efficiency of an investment?
DiKsa [7]

Answer:

The correct answer is option B. Return on Investment.

Step-by-step explanation:

The return on investment is used when we want to measure the capacity of an investment, or compare it among several other investments.

Here the <u>benefit of a certain investment will be compared in contrast to the money invested.  </u>

To calculate the return on investment there is a formula which will give us a percentage:

ROI = Margin on sales X asset turnover.

Now let's clarify what each of these things is:

Margin on sales: it is the result obtained from the calculation of benefits / sales.

Asset Rotation: this is the result obtained from the calculation of Average Total Sales / Assets.

7 0
3 years ago
Read 2 more answers
Which image shows a translation of the green quadrilateral JKLM three units to the right and one unit down?
podryga [215]

Answer:

The second option shows the correct translation of 3 units to the right and 1 unit down.

8 0
4 years ago
Read 2 more answers
What is the negative inverse of -0.3
TEA [102]

n\to negative\ of\ n=-n\\\\n\to inverse\ of\ n=\dfrac{1}{n}\\\\n\to negative\ inverse\ of\ a=-\dfrac{1}{a}\\\\-0.3=-\dfrac{3}{10}\\\\negative\ inverse:\\\\-\left(-\dfrac{10}{3}\right)=\dfrac{10}{3}

3 0
3 years ago
If 2i is a zero of f(x)=x^4+x^2+a, find the value of a
Sedbober [7]

By the polynomial remainder theorem, because <em>x</em> = 2<em>i</em> is a zero of <em>f(x)</em>, we have no remainder upon dividing <em>f(x)</em> by <em>x</em> - 2<em>i</em>.

Computing the quotient yields

\dfrac{x^4+x^2+a}{x-2i} = x^3+2ix^2-3x-6i+\dfrac{12+a}{x-2i}

Then if the remainder term is 0, follows that <em>a</em> = -12.

5 0
3 years ago
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