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Nadya [2.5K]
3 years ago
9

Help me pleaseeeeee :(

Mathematics
2 answers:
zhuklara [117]3 years ago
7 0

Inequality Notation:

x \geqslant 4

____o___o___

5x - 20 \geqslant 0 \\ 5x - 20 + 20 \geqslant 0 + 20 \\ 5x \geqslant 20 \\  \\  \frac{5x}{5}  \geqslant  \frac{20}{5}  \\  \\ x \geqslant 4

I hope I helped you^_^

Katena32 [7]3 years ago
3 0

Answer:

x=4

Step-by-step explanation:

5x=20

5x/5=20/5

x=4

x<u>></u>4

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4 years ago
What do these questions mean?? relations part two only btw
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I'll do problem 1 to get you started.

========================================

1a. Pick any four ordered pairs of the form (x,y) such that y = 2x. In other words, these points are all on the line y = 2x.

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There are infinitely many points to pick from.

========================================

1b. Similar to the first problem, but now y = x+5. Whatever the x coordinate is, we add 5 to it to get the y coordinate.

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========================================

1c. Similar idea as before, but now y = x-4

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There are infinitely many points.

=======================================

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4 years ago
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Assoli18 [71]

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8 0
4 years ago
If θ is an angle in standard position that terminates in Quadrant IV such that cosθ = 3/5, then cosθ/2 = _____. -
Sveta_85 [38]

Answer:

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Step-by-step explanation:

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First we will find the value of \theta.

Now taking cos^{-1} on both side we get;

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cos \frac{\theta}{2}=cos\ 26.565 = 0.894

Hence cos \frac{\theta}{2}= 0.894.

4 0
3 years ago
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