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Furkat [3]
2 years ago
14

11 A right triangle is shown.

Mathematics
1 answer:
Gre4nikov [31]2 years ago
3 0

Answer:

8 in.

Step-by-step explanation:

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Simplify: (64^-1/2)^-2/3
Ede4ka [16]

This = 64^( -1/2 * -2/3)

= 64 ^ 1/3

= cube root of 64

= 4 answer

5 0
3 years ago
The greatest common factor of 18 and 42 is: <br> 02<br> 6<br> 09<br> 18
Alex Ar [27]

Answer:

6

Step-by-step explanation:

We can obtain the greatest common factor by listing the factors of the 2 numbers, that is

Factors of 18 are 1, 2, 3, 6, 9, 18

Factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42

The common factors are 1, 2, 3, 6

The greatest common factor is 6

8 0
3 years ago
What is the solution to the inequality?
Pavel [41]
The steps to solving an inequality are: add or subtract from each side - multiply or divide both sides - simplify. 

5x + 8 > -12
5x > -12 - 8
5x > -20
x > -20/5
x > -4

The answer is: x > -4
8 0
2 years ago
Read 2 more answers
Find two vectors in R2 with Euclidian Norm 1<br> whoseEuclidian inner product with (3,1) is zero.
alina1380 [7]

Answer:

v_1=(\frac{1}{10},-\frac{3}{10})

v_2=(-\frac{1}{10},\frac{3}{10})

Step-by-step explanation:

First we define two generic vectors in our \mathbb{R}^2 space:

  1. v_1 = (x_1,y_1)
  2. v_2 = (x_2,y_2)

By definition we know that Euclidean norm on an 2-dimensional Euclidean space \mathbb{R}^2 is:

\left \| v \right \|= \sqrt{x^2+y^2}

Also we know that the inner product in \mathbb{R}^2 space is defined as:

v_1 \bullet v_2 = (x_1,y_1) \bullet(x_2,y_2)= x_1x_2+y_1y_2

So as first condition we have that both two vectors have Euclidian Norm 1, that is:

\left \| v_1 \right \|= \sqrt{x^2+y^2}=1

and

\left \| v_2 \right \|= \sqrt{x^2+y^2}=1

As second condition we have that:

v_1 \bullet (3,1) = (x_1,y_1) \bullet(3,1)= 3x_1+y_1=0

v_2 \bullet (3,1) = (x_2,y_2) \bullet(3,1)= 3x_2+y_2=0

Which is the same:

y_1=-3x_1\\y_2=-3x_2

Replacing the second condition on the first condition we have:

\sqrt{x_1^2+y_1^2}=1 \\\left | x_1^2+y_1^2 \right |=1 \\\left | x_1^2+(-3x_1)^2 \right |=1 \\\left | x_1^2+9x_1^2 \right |=1 \\\left | 10x_1^2 \right |=1 \\x_1^2= \frac{1}{10}

Since x_1^2= \frac{1}{10} we have two posible solutions, x_1=\frac{1}{10} or x_1=-\frac{1}{10}. If we choose x_1=\frac{1}{10}, we can choose next the other solution for x_2.

Remembering,

y_1=-3x_1\\y_2=-3x_2

The two vectors we are looking for are:

v_1=(\frac{1}{10},-\frac{3}{10})\\v_2=(-\frac{1}{10},\frac{3}{10})

5 0
2 years ago
What points are coplanar??
elena-14-01-66 [18.8K]

Coplanar means that points lie in the same plane. Since A, E, and D all lie on the back wall, they are coplanar.

6 0
3 years ago
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