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3 years ago

6

Which of the graphs in Fig. Q25.12 best illustrates the current I in a real resistor as a function of the potential difference V

across it? Explain. (Hint: See Discussion Question Q25.11.)

1 answer:

AveGali [126]3 years ago

8 0

What is the question

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Which of the following data sets has the mean, median, mode, and range as the same number?

I am Lyosha [343]

Answer:

A.

Step-by-step explanation:

6, 11,14,14,19,20

Adding these 6 numbers we get 84.

84 / 6 = 14 = mean.

Median = middle number(s) = 14

Mode = number occurring most = 14.

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1 year ago

Write (-2,5) and (0,8) linear equation in slope intercept form

maxonik [38]

Answer: y= 3/2x+8

Step-by-step explanation:

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2 years ago

(-1 + 6) Squared + (4+5) squared

nalin [4]

(-1 + 6)^2 <span>+ (4+5)^2 = </span>106

3 0

3 years ago

Marsha wants to determine the vertex of the quadratic function f(x) = x2 – x + 2. What is the function’s vertex?

BaLLatris [955]

Answer:

$Vertex = (\frac{1}{2},\frac{7}{4})$

Step-by-step explanation:

Given

$f(x) = x^2 - x +2$

Required

The vertex

We have:

$f(x) = x^2 - x +2$

First, we express the equation as:

$f(x) = a(x - h)^2 +k$

Where

$Vertex = (h,k)$

So, we have:

$f(x) = x^2 - x +2$

--------------------------------------------

Take the coefficient of x: -1

Divide by 2: (-1/2)

Square: (-1/2)^2

Add and subtract this to the equation

--------------------------------------------

$f(x) = x^2 - x +2$

$f(x) = x^2 - x + (-\frac{1}{2})^2+2 -(-\frac{1}{2})^2$

$f(x) = x^2 - x + \frac{1}{4}+2 -\frac{1}{4}$

Expand

$f(x) = x^2 - \frac{1}{2}x- \frac{1}{2}x + \frac{1}{4}+2 -\frac{1}{4}$

Factorize

$f(x) = x(x - \frac{1}{2})- \frac{1}{2}(x - \frac{1}{2})+2 -\frac{1}{4}$

Factor out x - 1/2

$f(x) = (x - \frac{1}{2})(x - \frac{1}{2})+2 -\frac{1}{4}$

$f(x) = (x - \frac{1}{2})^2+2 -\frac{1}{4}$

$f(x) = (x - \frac{1}{2})^2+ \frac{8 -1 }{4}$

$f(x) = (x - \frac{1}{2})^2+ \frac{7}{4}$

Compare to: $f(x) = a(x - h)^2 +k$

$h = \frac{1}{2}$

$k = \frac{7}{4}$

Hence:

$Vertex = (\frac{1}{2},\frac{7}{4})$

8 0

3 years ago

Read 2 more answers

HELP FOR 30 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!1

netineya [11]

I would say the last one is B, because of you use a calculator you will see that the equation adds up to B. Also if you have any trouble with your math download the app Photomath. It changed my life! Hope this helps

4 0

3 years ago