3 years ago

In the figure, name four points that are coplanar.

Mathematics

1 answer:

Alja [10]3 years ago

4 0

Answer:

CKAG are the coplanar points given, as they all fall on the closest triangular face.

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Anna11 [10]

Answer:

first one 5 - 30

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third one 16 : 32

Step-by-step explanation:

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The y-intercept would be 2. This is due to the fact that when the line cross through the y axis, it is 2.

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2 years ago

(10b-2)-3(3b+3)=-7 thank you plz hurry show steps

ryzh [129]

Answer:

$b=4$

Step-by-step explanation:

$10b-2-3(3b+3)=-7\\\Leftrightarrow 10b-9b-9=-5\\\Leftrightarrow b=4$

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3 years ago

Greg's soccer team is selling sets of 3 raffle tickets for $5.00. What is the constant of proportionality of dollars per ticket?

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What are the exact solutions of sin2x+sinx-2cox-1=0?

Alex_Xolod [135]

sin2x+sinx-2cox-1=0

As we know, Sin 2x =2sinx cosx

2Sinx Cosx+Sinx-2cosx-1=0

Sinx(2cos x+1)-1(2cosx+1)=0

(sinx-1)(2cosx+1)=0

So, either sinx-1=0 or 2cos x+1=0

Sin x=1 or cos x= $\frac{-1}{2}$

x= $\frac{\pi}{2}$ or multiples of $\frac{\pi}{2}$

x= $\frac{2\pi}{3}$ or multiples of $\frac{2\pi}{3}$

x= $\frac{-2\pi}{3}$ or multiples of $\frac{-2\pi}{3}$

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