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3 years ago

Evaluate r-s if r = -18 and s = -11

Mathematics

2 answers:

galben [10]3 years ago

7 0

Answer:

r-s=-7

Step-by-step explanation:

r-s

=-18--11

=-18+11=-7

r-s=-7

pls mark brainliest if this helped :)

have a great day

Ilia_Sergeevich [38]3 years ago

6 0

Answer: -7

Step-by-step explanation:

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Solve for x and why please using these!!!

krok68 [10]

Answer:

$x = 40$

$y = 5$

Step-by-step explanation:

$4x = 2x+80\\2x = 80\\x = 40$

Edit: Solve for Y

A straight line is 180 degrees so one side (the x side) is 160°, The Y side is 20, and you can work backwards by -

$8y - 20 = 20\\8y = 40\\y = 5$

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3 years ago

Help me please i need help on this

beks73 [17]

Answer:

CE = 20

Step-by-step explanation:

Given a line parallel to a side of a triangle and intersecting the other 2 sides then it divides those sides proportionally, that is

$\frac{6}{8}$ = $\frac{15}{CE}$ ( cross- multiply )

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3 years ago

Write an equation of a like that passes through the points (9,5) and (6,7)

hodyreva [135]

Answer:

y=-2/3x+11

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-5)/(6-9)

m=2/-3

m=-2/3

y-y1=m(x-x1)

y-5=-2/3(x-9)

y=-2/3x+18/3+5

y=-2/3x+6+5

y=-2/3x+11

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3 years ago

A video game store was getting rid of old games, selling them 3 for $34.26.If they sold 2 games, how much money would they have

lesya [120]

The answer is 22.84 because 34.36 divided by 3 = 11.42
Then 11.42x2=22.84

4 0

4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bcos%2030%7D%7B1%2Bsin30%7D%3Dtg30" id="TexFormula1" title="\frac{cos 30}{1+sin30}=tg

Kay [80]

$\cos 30=\frac{\sqrt{3}}{2}$

$\sin 30 = \frac{1}{2}$

$\tan 30=\frac{1}{\sqrt{3}}$

Now we insert that into the equation:

$\dfrac{\frac{\sqrt{3}}{2}}{1+\frac{1}{2}} = \frac{1}{\sqrt{3}}$

$\dfrac{\frac{\sqrt{3}}{2}}{\frac{3}{2}} = \frac{1}{\sqrt{3}}$

$\frac{\sqrt{3}}{3} = \frac{1}{\sqrt{3}}$

$\frac{\sqrt{3}}{3} = \frac{1}{\sqrt{3}}\cdot \frac{\sqrt{3}}{\sqrt{3}}\\$

$\frac{\sqrt{3}}{3} = \frac{\sqrt{3}}{\sqrt{3}\cdot \sqrt{3}}\\$

$\frac{\sqrt{3}}{3} = \frac{\sqrt{3}}{3}$

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4 years ago