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statuscvo [17]
2 years ago
6

In the diagram, ATPR ~ AXPZ. Find the length of the altitude PY

Mathematics
1 answer:
ruslelena [56]2 years ago
6 0
8.9 I am pretty sure
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16.How many surfaces does a cube have?
MrRa [10]
Hello!

A cube has 6 faces which is the shape of a square, all corners are 90 degrees and it’s x^3
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3 years ago
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Two Physics classes at Jefferson High School took the same quiz. Mr. Spears had 20 students in his class with a mean score of 80
andriy [413]

Answer:

The mean score for all students on the quiz was 86.

Step-by-step explanation:

This question is solved by a weighed average.

To find the weighed average, we add the values multiplied by their weight, and after that we divide by the sum of weights.

In this problem, we have that:

Mr. Spears had 20 students in his class with a mean score of 80.

So 80 has a weight of 20.

Mrs. Guyton's class of 30 students had a mean score of 90.

So 90 has a weight of 30.

Overall, what was the mean score for all students on the quiz

M = \frac{80*20 + 90*30}{20 + 30} = 86

The mean score for all students on the quiz was 86.

4 0
3 years ago
What is the value (ratio) of cos A?<br><br> A. 8/15 <br> B. 15/17 <br> C. 15/8 <br> D. 8/17
TEA [102]
Cos A=8/17
the ans is D
8 0
3 years ago
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Consider the equation tan(270° + 0)= 1 - sin∅/cos∅ where 0° &lt;∅ &lt; 360°
zzz [600]

\\ \sf\longmapsto tan(270+\theta)=1-\dfrac{sin\theta}{cos\theta}

\\ \sf\longmapsto \dfrac{sin(270+\theta)}{cos(270+\theta)}=1-\dfrac{sin\theta}{cos\theta}

\\ \sf\longmapsto \dfrac{-cos\theta}{sin\theta}=1-\dfrac{sin\theta}{cos\theta}

\\ \sf\longmapsto\dfrac{sin\theta}{cos\theta} \dfrac{-cos\theta}{sin\theta}=1

\\ \sf\longmapsto \dfrac{sin^2\theta-cos^2\theta}{-cos\theta sin\theta}=1

\\ \sf\longmapsto \dfrac{-2cos\theta}{-cos\theta sin\theta}

\\ \sf\longmapsto \dfrac{2}{sin\theta}=1

\\ \sf\longmapsto 2cosec\theta=1

\\ \sf\longmapsto cosec\theta=\dfrac{1}{2}

\\ \sf\longmapsto \theta=cosec^{-1}\left(\dfrac{1}{2}\right)

  • theta doesn't exist
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2 years ago
Solve the following system of equations using the SUBSTITUTION METHOD.
Nonamiya [84]

Answer:

x = 7, y = 2

Step-by-step explanation:

x= 4y -1

since x is by itself 4y-1 will substitute for x in the other equation x+2y=11

it will become 4y-1+2y=11

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add one to both sides since is doesn't have a variable.

it will become 4y+2y= 12 now add 4y+2y

becomes 6y=12

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6 6

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x=8-1 subtract 8 from 1 to get 7.

x=7

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2 years ago
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