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3 years ago

In the figure below what is the name of the angle formed by two rays QR and QP? What is the common. endpoint,for this angle?

Mathematics

1 answer:

castortr0y [4]3 years ago

6 0

The common endpoint is Q. The angle is: angle RQP, angle PQR, or just angle Q

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A parabola has a vertex at (3,4) and passes through point (-2,-9/4) as shown to the right. Which of the following is the equatio

Alex17521 [72]

Answer:

b. y= -4(x-3)^2+4

Step-by-step explanation:

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3 years ago

How to find the probability of exactly one event happening?

Vlad [161]

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A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 5 answer

choli [55]

Answer:

there is a 64% chance that the student got both problems wrong

a 32% chance that they got only 1 correct

and a 4% chance that they got both correct

Step-by-step explanation:

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$\frac{64}{100}$

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$\frac{32}{100}$

$32$ %

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3 years ago

Find all solutions to the equation. 7 sin2x - 14 sin x + 2 = -5

cestrela7 [59]

$\bf 7sin^2(x)-14sin(x)+2=-5\implies 7sin^2(x)-14sin(x)+7=0 \\\\\\ \stackrel{\textit{notice, this is just }ax^2+bx+c}{\stackrel{\stackrel{ax^2}{\downarrow }}{sin^2(x)}\stackrel{\stackrel{bx}{\downarrow }}{-2sin(x)}\stackrel{\stackrel{c}{\downarrow }}{+1}}=0\implies [sin(x)-1][sin(x)-1]=0 \\\\\\ sin(x)-1=0\implies sin(x)=1\implies \measuredangle x=sin^{-1}(1)\implies \measuredangle x=\cfrac{\pi }{2} \\\\\\ ~~~~~~~~~~~~~~\stackrel{\textit{and for all solutions using }n \in \mathbb{Z}}{\cfrac{\pi }{2}+2\pi n}$

7 0

3 years ago

Read 2 more answers

Help (picture attached)

Orlov [11]

I have no idea what this means im in 6th grade

5 0

3 years ago