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3 years ago

Given the 3 lengths , can they form a right triangle ? 20, 21 , 30

Mathematics

2 answers:

Julli [10]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

20 is the shortest side

julia-pushkina [17]3 years ago

3 0

Answer:

the answer is c

Step-by-step explanation:

usaesprep

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Usimov [2.4K]

Answer:

maybe

$y = \frac{1}{2} x + 0.5$

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3 years ago

Read 2 more answers

Which lines are perpendicular?

makkiz [27]

Given:

Line A: $y=\frac{1}{2} x+2$

Line B: $y=\frac{-1}{2} x+7$

Line C: $y=2 x+4$

Line D: $y=\frac{1}{2} x+\frac{5}{4}$

To find:

Which lines are perpendicular

Solution:

General equation of a line:

y = mx + c

where m is the slope and c is the y-intercept.

Slope of line A = $\frac{1}{2}$

Slope of line B = $\frac{-1}{2}$

Slope of line C = 2

Slope of line D = $\frac{1}{2}$

<em>Two lines are perpendicular if their slopes are negative reciprocal of one another.</em>

$$\Rightarrow m_1=\frac{-1}{m_2}$

$$\frac{-1}{2}=-(-2)=2$

Negative reciprocal of $\frac{-1}{2}$ is 2.

Therefore line B and line C are perpendicular lines.

6 0

4 years ago

What is the sum 2/x^2 + 4/x^2

zheka24 [161]

The answer is 6/x^2

hope that helped!

5 0

4 years ago

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2 h, and Car B traveled the dista

CaHeK987 [17]

2 * ( x - 15 ) = 1.5 * x
2x - 30 = 1.5x
2x -1.5x = 30
0.5x = 30
x = 30/0.5
x = 60mph.

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4 years ago

What is (14x2 + 19x - 3) = (2x+3)?

Vlada [557]

Answer:

Dear User

Answer to your query is provided below

X = 2/7 or X = -3/2

Step-by-step explanation:

Explanation for the same is attached in image

8 0

3 years ago