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katen-ka-za [31]
3 years ago
8

A plane formed by two number lines that intersect at a right angle

Mathematics
1 answer:
masya89 [10]3 years ago
6 0
Probably the coordinate plane, since there are 2 number lines (which is the x and y axis). Therefore, it it perpendicular and forms a right angle. Hope this helps!
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HELPP!!!! 100 points. Which expression is equivalent
devlian [24]

Answer:

\Large \boxed{\sf A}

Step-by-step explanation:

\displaystyle 2x\sqrt{44x}-2\sqrt{11x^3}

Let<em> x</em>  = 2 because x > 0

\displaystyle 2(2)\sqrt{44(2)}-2\sqrt{11(2)^3}=4\sqrt{22}

See which expression is equal to 4√22 when <em>x</em> = 2

2(2)\sqrt{11(2)}=4\sqrt{22}

The expression is option A

8 0
2 years ago
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Please help me out :)
arlik [135]

Answer:

\frac{\sqrt{17} }{7}

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

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Note that (\frac{4\sqrt{2} }{7})² = \frac{32}{49}

sinΘ = \sqrt{1-(32/49)}

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5 0
3 years ago
Solve, using the substitution method.
ss7ja [257]

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

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substitute -5 for y in either equation to find x

x+y=-11

x+-5=-11

x=-6

8 0
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1.3*3=3.90
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ICE Princess25 [194]
The original bill is $ 83.475
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3 years ago
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