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jonny [76]
3 years ago
15

Which quadrilaterals are considered parallelogram

Mathematics
1 answer:
Elenna [48]3 years ago
6 0

Answer: Rectangle, Rhombus, Square

Step-by-step explanation:

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Please answer this i will give brainliest asap please​
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Answer:

{x | x<5/4}

Step-by-step explanation:

Add 2 to both sides and simplify:

4x<5

Divide both sides by 4 and simplify:

x<5/4

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A linear equation (in slope intercept form) for a line perpendicular to y= -x+12 with a y-intercept of 5

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28+ 90 + 2x = 180
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Solve 2cos ²y -siny -1=0 for 0° ≤y≤360°
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\displaystyle\bf\\2cos^2y -sin\,y -1=0~~~for~~0^o\leq y \leq360^o\\\\cos^2y=1-sin^2y\\\\2(1-sin^2y) -sin\,y -1=0\\\\2-2sin^2y-sin\,y-1=0\\\\-2sin^2y-sin\,y+2-1=0\\\\-2sin^2y-sin\,y+1=0~~~\Big|\times(-1)\\\\2sin^2y+sin\,y-1=0

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\displaystyle\bf\\\boxed{\bf sin\,y=x}\\\\2x^2+x-1=0\\\\x_{12}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-1\pm\sqrt{1-4\cdot2\cdot(-1)}}{2\cdot2}=\\\\=\frac{-1\pm\sqrt{1+8}}{4}=\frac{-1\pm\sqrt{9}}{4}=\frac{-1\pm3}{4}\\\\x_1=\frac{-1+3}{4}=\frac{2}{4}=\boxed{\bf\frac{1}{2}}\\\\x_2=\frac{-1-3}{4}=\frac{-4}{4}=\boxed{\bf-1}\\\\sin\,y=\frac{1}{2}\\\\\boxed{\bf y_1=\frac{\pi}{6}~~or~~(30^o)}\\\\\boxed{\bf y_2=\frac{5\pi}{6}~~or~~(150^o)}\\\\sin\,y=-1\\\\\boxed{\bf y_3=\frac{3\pi}{2}~~or~~(270^o)}

 

 

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3 years ago
Sean drank a slushy as fast as he could.
Ray Of Light [21]

Answer:

600 cause at the start he had 600 ML in the cup, and as the seconds went by, he was drinking it so it went down. That means the start (0 seconds) had 600 ML in it.

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3 years ago
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