-5/2 is more our less than 2/9

Mathematics

2 answers:

Masja [62]3 years ago

8 0

The answer is less since its negative. Hope this helps!!!!!!

Veseljchak [2.6K]3 years ago

3 0

-5/2 is less than 2/9!

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Sin(2x+30°)=1 Tìm x Cảm ơn vì giúp đỡ

Pie

Answer:

Step-by-step explanation:

This question is asking us to find where sin(2x + 30) has a sin of 1. If you look at the unit circle, 90 degrees has a sin of 1. Mathematically, it will be solved like this (begin by taking the inverse sin of both sides):

$sin^{-1}[sin(2x+30)]=sin^{-1}(1)$

On the left, the inverse sin "undoes" or cancels the sin, leaving us with

2x + 30 = sin⁻¹(1)

The right side is asking us what angle has a sin of 1, which is 90. Sub that into the right side:

2x + 30 = 90 and

2x = 60 so

x = 30

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The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest pen

inessss [21]

It’s 500.07
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2 years ago

Rotate the given triangle 90°

kati45 [8]

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Answer:

$\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right]$

Step-by-step explanation:

The rotation matrix for 90° CCW is ...

$\left[\begin{array}{cc}0&-1\\1&0\end{array}\right]$

Then the rotated coordinates are ...

$\left[\begin{array}{ccc}0&-1\\1&0\end{array}\right]\cdot\left[\begin{array}{ccc}0&-3&5\\0&1&2\end{array}\right]=\left[\begin{array}{ccc}0&-1&-2\\0&-3&5\end{array}\right]$