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azamat
3 years ago
15

Solve the system by substitution y= 5x− 22 y= 4x− 17

Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

x=5, y=3

Step-by-step explanation:

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Evaluate the expression when n=9.<br> n2-14
Semenov [28]

Answer:

4

Step-by-step explanation:

  • 9×2-14(n=9)
  • 18-14
  • 4 is answer
5 0
3 years ago
Create a function with a domain of all real numbers and the range all real numbers that are greater than or equal to zero. Provi
Elena L [17]
<h2>Explanation:</h2><h2></h2>

Any polynomial function has the domain of all real numbers. So here we'll choose a polynomial function in order to illustrate this problem. So any polynomial of the form:

f(x)=a(x+h)^n \\ \\ \\ For: \\ \\ a>0 \\ \\ n \ even \\ \\ h \ any \ constant

meets our requirements. Therefore, if we set:

a=1 \\ \\ n=2 \\ \\ h=3

Then, we'll have:

  • A domain of all real numbers and the range all real numbers that are greater than or equal to zero.

This is shown graphically in the figure below.

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=2%20%5Csqrt%7B75%7D%20-%20%5Csqrt%7B108%7D%20%2B%205%20%5Csqrt%7B48%7D" id="TexFormula1" title
mario62 [17]

\\ \sf\longmapsto 2 \sqrt{75}  -  \sqrt{108}  + 5 \sqrt{48}  \\\\ \sf\longmapsto 2 \sqrt{25 \times 3}  -  \sqrt{36 \times 3}  + 5 \sqrt{16 \times 3}   \\ \\ \sf\longmapsto 2 \times 5 \sqrt{3}  - 6 \sqrt{3}  + 5 \times 4 \sqrt{3}  \\ \\ \sf\longmapsto 10 \sqrt{3}  - 6 \sqrt{3}  + 20 \sqrt{3}  \\ \\ \sf\longmapsto (10 - 6 + 20) \sqrt{3}  \\ \\ \sf\longmapsto 24 \sqrt{3}

3 0
3 years ago
Read 2 more answers
10.
vodomira [7]
<h3>Solution:</h3>
  • Given, side (a) = x+3
  • We know, surface area of a cube = 6a^2
  • Therefore, the surface area of the cube
<h3> </h3><h3>6(x + 3) ^{2}  \\  = 6( {x}^{2}  + 6x + 9) \\  = 6 {x}^{2}  + 36x + 54</h3><h3>Answer:</h3>

The answer is

{6x}^{2}  + 36x + 54

<h3>Hope it helps.</h3>

Sorry for delay

3 0
3 years ago
Let be a, b, c be the lengths of sides of a triangle; a=4.8, b=0.23, c is a whole number. Find c.
makvit [3.9K]
It's not clear if this is a right triangle or not. I'm going to assume its any kind of triangle. The third side c is restricted such that...

a - b < c < a + b
4.8 - 0.23 < c < 4.8 + 0.23
4.57 < c < 5.03

If c was allowed to be any real number, then we'd have infinitely many solutions for c. However, we're told that c is a whole number. The only whole number between 4.57 and 5.03 is 5

So c = 5 is the only integer solution

Final Answer: 5
8 0
3 years ago
Read 2 more answers
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