3 years ago

Change the decimal to a percent. 1.3=

Mathematics

2 answers:

vichka [17]3 years ago

6 0

.013% I think you move the decimal to the left

kolezko [41]3 years ago

5 0

Answer:

Im pretty sure its 130%

Step-by-step explanation:

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If a=i+7j+k and b=i+11j+k, find a unit vector with positive first coordinate orthogonal to both a and

Scilla [17]

Take the cross product, then normalize the result.

$\mathbf a\times\mathbf b=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&7&1\\1&11&1\end{vmatrix}=-4\,\mathbf i+4\,\mathbf k$

This has norm

$\|\mathbf a\times\mathbf b\|=\sqrt{(-4)^2+4^2}=4\sqrt2$

and so a unit vector orthogonal to both given vectors is

$\dfrac{\mathbf a\times\mathbf b}{\|\mathbf a\times\mathbf b\|}=-\dfrac1{\sqrt2}\,\mathbf i+\dfrac1{\sqrt2}\,\mathbf k$

An equally correct answer would be the negative of this vector, since $\mathbf b\times\mathbf a=-\mathbf a\times\mathbf b$ .

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3 years ago

Question 9 of 10 Solve -4x+ 2 26. 0 A. x-6 0 B. )( 6 0 C. -6 0 D. )( 6

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Answer:

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Step-by-step explanation:

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3 years ago

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Multi step equation that equal 27 when solved

Ksenya-84 [330]

Sample Equation: 3x - 3 = 27

Multiple step:

3x - 3 = 27
 + 3 +3 Step1. Remove the -3 by adding 3 to both sides
3x = 30
÷3 ÷ 3 Step2. Remove the multiplicand 3 by dividing both sides by 3
x = 10

To check: substitute x by its value

3x - 3 = 27
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3 years ago

Find MN LM = 3y + 4 MN = 7y + 9 LN = 143

ahrayia [7]

Answer:

B. 100

Step-by-step explanation:

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