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rosijanka [135]
3 years ago
14

7) Evaluate the expression XY - 3 + x when

Mathematics
1 answer:
sweet [91]3 years ago
5 0

Step-by-step explanation:

The correct answer for number 7 is B

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NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!! Chapter 11a
notsponge [240]

9514 1404 393

Answer:

  • vertical shift: 7 (up)
  • horizontal shift: 2 (right)
  • vertical asymptote: x=2
  • domain: x > 2
  • range: all real numbers

Step-by-step explanation:

For any function f(x), the transformation f(x -h) +k represents a horizontal shift of h units to the right and k units upward.

Here, the parent function is log₂(x) and the transformation to log₂(x -2) +7 represents translation 2 units right and 7 units upward.

The parent function has a vertical asymptote at x=0, so the shifted function will have a vertical asymptote at x-2=0, or x = 2.

The parent function has a domain of x > 0, so the shifted function will have a domain of x-2 > 0, or x > 2.

The parent function has a range of "all real numbers." Shifting the function vertically does not change that range. The range of the shifted function is still "all real numbers."

The graph is shown below. The vertical asymptote is the dashed orange line.

_____

The "work" is in matching the pattern f(x -h) +k to the function log₂(x -2) +7.

3 0
3 years ago
Please help me to solve this problem
Leto [7]
So you can choose any number from 11 to 19.

I'll choose 11 for now.

Then you write, 11, the number, and then spell it out, eleven.

To show how many tens and ones, you can make a place value chart. You would make two boxes, the first one for tens and the other for ones.

You would put a 1 in the tens place and a 1 in the ones place.

I hope this helps!

6 0
3 years ago
Read 2 more answers
5√27-2√48-5√3-√(3-2√3)2
gregori [183]

Answer:

4√3

Step-by-step explanation:

5√27-2√48-5√3-(√3-2√3)2

= 5√(3x9)-2√(3x16)-5√3-2√3+4√3

= 5(3)√3-2(4)√3-5√3-2√3+4√3

= 15√3-8√3-5√3-2√3+4√3

= 4√3

7 0
3 years ago
Can someone please help I really don’t understand this please explain.
marta [7]

Answer:

The answer is option D.

Step-by-step explanation:

You have to multiply it :

h(x) × g(x) = (h×g)(x)

(h×g)(x) = (x² + 2x)(-3x + 4)

(h×g)(x) = -3x³ + 4x² - 6x² + 8x

(h×g)(x) = -3x³ - 2x² + 8x

4 0
3 years ago
Read 2 more answers
An equilateral triangle has sides of length(3k-2)units. A regular pentagon(5 sides) has sides of (2k+0.5)units. If the perimeter
Vitek1552 [10]

The length of side of triangle is 5 units and length of side of pentagon is 1.5 units.

<u>SOLUTION:</u>

Given, An equilateral triangle has sides of length (3k-2) units.  

Then, perimeter of the triangle will be 3 \times(3 k-2)=9 k-6

A regular pentagon (5 sides) has sides of (2k+0.5) units.  

Then, perimeter of the pentagon will be 5 \times(2 k+0.5)=10 k+2.5

We have to find the dimensions of each shape . Now, the perimeter of the triangle is twice the perimeter of the pentagon,  

So, \text {perimeter of triangle} = 2\times \text{perimeter of pentagon}

\begin{array}{l}{\rightarrow 9 k-6=2(10 k+2.5)} \\\\ {\rightarrow 9 k-6=20 k+5} \\\\ {\rightarrow 20 k-9 k=-6-5} \\\\ {\rightarrow 11 k=-11} \\\\ {\rightarrow k=-1}\end{array}

Then, length of side of triangle = 3(-1)-2 = - 5

Length of side of pentagon = 2(-1) + 0.5 = - 1.5

We have to neglect, negative sign as lengths can’t be negative. Even if we change the sign above all conditions are satisfied.

4 0
3 years ago
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