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Maru [420]
2 years ago
11

Passing through (5, -4) and parallel to the line whose equation is y=-2x+3; point-slope form

Mathematics
1 answer:
Marina CMI [18]2 years ago
8 0
The answer is y=-2x+6

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Find the limit if it exists lim x→0 sqrtx+7-sqrt7 over x
Triss [41]

Answer:

\frac{1}{ 2\sqrt{7} }

Step-by-step explanation:

\lim_{x\to 0}  \frac{ \sqrt{x + 7}  -  \sqrt{7} }{x}  \\  \\  = \lim_{x\to 0}  \frac{( \sqrt{x + 7}  -  \sqrt{7}) }{x}  \times  \frac{( \sqrt{x + 7}   +   \sqrt{7}) }{( \sqrt{x + 7}   +  \sqrt{7}) }  \\  \\   = \lim_{x\to 0}  \frac{( \sqrt{x + 7} )^{2}  -  (\sqrt{7})^{2}  }{x( \sqrt{x + 7}   +  \sqrt{7})}  \\  \\   = \lim_{x\to 0}  \frac{( {x + 7}  -  {7}) }{x( \sqrt{x + 7}   +  \sqrt{7})}   \\  \\ = \lim_{x\to 0}  \frac{ {\cancel x}}{\cancel x( \sqrt{x + 7}   +  \sqrt{7})} \\  \\ = \lim_{x\to 0}  \frac{ {1}}{\sqrt{x + 7}   +  \sqrt{7}}  \\  \\  =  \frac{1}{ \sqrt{0 + 7} +  \sqrt{7}  } \\  \\  =  \frac{1}{ \sqrt{7} +  \sqrt{7}  }  \\  \\  =  \frac{1}{ 2\sqrt{7} }

6 0
3 years ago
A concrete stepping stone neasures 20 square inches. what is the area of 30 such stones?
sattari [20]
If the area of one is 20, that the area of 30 is 20*30=600 square inches.
3 0
2 years ago
Which choice is equivalent to
Masja [62]

Answer: it’s 8y-20

Step-by-step explanation:

7 0
3 years ago
Can someone please check my answer thank you
serious [3.7K]

Answer:

x = 1 , x = -2.

Step-by-step explanation:

You are correct when x = -2 and x = 1 we find that f(x) = g(x).

6 0
2 years ago
Barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle she wrote an equation to find the number of bottles s
Ann [662]

Answer:

She did a multiplication, i think she should have substracted both numbers to 100 and divide it by 1.25 or 1.49

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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