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saw5 [17]
2 years ago
15

I need help with this.

Mathematics
2 answers:
choli [55]2 years ago
7 0

Answer:

 √125

Step-by-step explanation:

(0,0) (10,5)=(x1,y1) (x2,y2)

 √(x2-x1)²+(y2-y1)²

 √(10-0)²+(5-0)²

 √10²+5²

 √100+25

 √125

svet-max [94.6K]2 years ago
3 0

Answer:

y = \frac{1}{2}x

Step-by-step explanation:

identify two points on the line: (2, 1) (4, 2) to find the slope(\frac{y2 - y1 }{x2 - x1}) for the line

=> \frac{2- 1}{4-2} => \frac{1}{2}

find the y-intercept:

=> 0

substitute the slope and y-intercept into the equation y = mx + b

                                                                                      slope ↑       ↑ y-intercept    

=> y = \frac{1}{2}x + 0

=> y = \frac{1}{2}x

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3 years ago
An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20\text{ cm}d=20 cmd, equals, 20, s
aivan3 [116]

Answer: The answer is 314.28 cm² (approx.).


Step-by-step explanation:  Given that an engineer is going to install a new water pipe. The diameter of this circular pipe is, d = 20 cm.

We need to find the area 'A' of the circular cross-section of the pipe.

Given, diameter of the circular section is

\textup{d}=20~\textup{cm}.

So, the radius of the circular cross-section will be

\textup{r}=\dfrac{\textup{d}}{2}=\dfrac{20}{2}=10~\textup{cm}.

Therefore, cross-sectional area of the pipe is

\textup{A}=\pi \textup{r}^2=\dfrac{22}{7}(10)^2=\dfrac{2200}{7}=314\dfrac{2}{7}=314.28~.~.~.~\textup{cm}^2.

Thus, the answer is 314.28 cm² (approx.).

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Read 2 more answers
Help plz I’ll mark brainliest
motikmotik

Answer:

D

Step-by-step explanation:

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