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Pie
3 years ago
10

Fast! Which of the following are characteristics of the graph of the square root

Mathematics
1 answer:
svetlana [45]3 years ago
3 0

Answer:

Only choices B and C are correct.

Step-by-step explanation:

The square root parent function is f(x)= \sqrt{x}.

The function f(x) is not a linear function, therefore it's graph cannot be a straight line. This rules out choice A.

The function f(x) is defined at x=0 because f(0)= \sqrt{0} =0. This means that choice B is correct.

The function f(x) is only real for values x\geq 0, because negative values of x give complex values for f(x). This means that choice C is correct.

The function f(x) can take only positive values which means it is confined to only the I quadrant, and is not defined in quadrants II, III, and IV. This rules out Choice D.

Therefore only choices B and C are correct.

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determine the householder transformation that annihilates all but the first entry of the vector [1 1 1 1 ]t. specifically, if (
Stolb23 [73]

Answer:

v=a+ 2e1= [3 1 1 1] x^{T}.

Step-by-step explanation:

Let a = ^{}\left[\begin{array}{ccc}\\1&1&1\\\end{array}\right] ^{T}and we know that\alpha=±║α║₂= 2.

As we have gone over in class, the formula for v is v= a-\alphae1

with the sign of chosen to avoid subtraction. This gives v=a+ 2e1= [3 1 1 1] x^{T}.

Disclaimer ;The question is incomplete

Question:

Determine the Householder transformation that annihilates all but the first entry of the vector[1 1 1 1]>Specifically, if

I-2vv^{T}/v^{T}v\left[\begin{array}{ccc}1\\1\\1\\1\end{array}\right]==\left[\begin{array}{ccc}\alpha \\0\\0\\0\end{array}\right]

what are the values of α and v?

#SPJ4

learn more about it on

brainly.com/question/28180105

8 0
1 year ago
PLZZZZZZ answer these questions
Daniel [21]

Answer:

for the last question, there is a slope calculator on the internet that could help with that

6 0
2 years ago
Ratio equivalent to 2:1
Nataliya [291]

Answer:

4:2

8:4

12:6

16:8

6 0
3 years ago
Help pleasee don’t know what I’m doing lol
Ksju [112]

Answer:

D. 4\sqrt{3} in

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
Read 2 more answers
The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t
Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

Average = \frac{x + y}{2}

And:

Average = (1 - 30\%) * x -----30% less than x

Substitute Average = (1 - 30\%) * x in Average = \frac{x + y}{2}

\frac{x + y}{2} = (1 - 30\%) * x

\frac{x + y}{2} = (1 - 0.30) * x

\frac{x + y}{2} = 0.70 * x

\frac{x + y}{2} = 0.70x

Cross multiply

x + y = 0.70x * 2

x + y = 1.40x

Collect like terms

1.40x - x = y

0.40x = y

Make x the subject

x = \frac{y}{0.40}

x = 2.50y

So, the average is:

Average = (1 - 30\%) * x

Average = (1 - 30\%) * 2.50y

Average =0.70 * 2.50y

Average =1.75y

Rewrite as:

Average =(1 + 0.75)y

Express as percentage

Average =(1 + 75\%)y

This means that the average is 75% bigger than the second number

6 0
2 years ago
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