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3 years ago

5

help!!!! using pythagorean inequalities, determine which set of the given three sides produces an acute triangle. a. 3,4,5 b. 6,

12,20 c. 4,6,10 d. 5,12,18

1 answer:

bekas [8.4K]3 years ago

3 0

Answer:

A 3,4,5

Step-by-step explanation:

if you add the two smallest numbers together they should be greater than the bigger number

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95%

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3 years ago

What's 2 divided by X

romanna [79]

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2/x

Step-by-step explanation:

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2 years ago

Find an equation of the plane. The plane through the points (0, 9, 9), (9, 0, 9), and (9, 9, 0) Incorrect: Your answer is incorr

Andrei [34K]

Answer:

The equation of the plane is represented by $\frac{1}{18}\cdot x + \frac{1}{18}\cdot y + \frac{1}{18}\cdot z = 1$ .

Step-by-step explanation:

Algebraically speaking, a plane can be represented by following vectorial product:

$(a,b, c)\,\bullet\,(x,y,z) = 1$ (1)

Where:

$a$ , $b$ , $c$ - Plane coeffcients.

$x$ , $y$ , $z$ - Coordinates.

We need three distinct points to determine all coefficients. If we know that $(x_{1},y_{1},z_{1}) = (0,9,9)$ , $(x_{2},y_{2}, z_{2}) = (9,0,9)$ and $(x_{3},y_{3},z_{3}) = (9,9,0)$ , the system of equations to be solved is:

$9\cdot b + 9\cdot c = 1$ (1)

$9\cdot a + 9\cdot c = 1$ (2)

$9\cdot a + 9\cdot b = 1$ (3)

The solution of this system is $a = \frac{1}{18}$ , $b = \frac{1}{18}$ , $c = \frac{1}{18}$ .

Hence, the equation of the plane is represented by $\frac{1}{18}\cdot x + \frac{1}{18}\cdot y + \frac{1}{18}\cdot z = 1$ .

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3 years ago

If c=4 and d=5, find c:d.<br>

Sholpan [36]

Answer:

3:4?

Step-by-step explanation:

If you fill in the blank for c and d it show 3:4. Sorry if this doesn’t help, I don’t fully understand the question

8 0

3 years ago

Please help with this 3a² = 27. Find a

Ivahew [28]

Answer:

$a = 3$

Step-by-step explanation:

$3 {a}^{2} = 27 \\ \frac{3 {a}^{2} }{3} = \frac{27}{3} \\ {a}^{2} = 9 \\ a = \sqrt{9} \\ a = 3$

6 0

3 years ago

Read 2 more answers