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Naya [18.7K]
3 years ago
7

Work out 4/5 - 1/5 work out 9/11 +5/11 work out 3/4 + 1/8

Mathematics
1 answer:
____ [38]3 years ago
3 0

Answer:

4/5-1/5=6.0

9/11+5/11=1.27

3/4+1/8=0.875

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Help me to take the retake?
DanielleElmas [232]

Answer:

1. (3, 2) --> (-x, -y) = <u>b, (-3, -2)</u>

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3. (7, 9) --> (-x, y) = <u>d, (-7, 9)</u>

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5. (-7, 9) --> (y, -x) = <u>c, (9, 7)</u>

Hope this helps!

6 0
3 years ago
Justin began his walk at 3:05 p.m. He arrived at his destination at 4:32 p.m. How long did Justin walk? Show your work and expla
andrey2020 [161]

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The answer to this question is it took him an hour and 27 minute

6 0
4 years ago
Can somebody show me how to solve this:<br><br>42 + 8x + 13 = 7
OlgaM077 [116]
42 + 8x + 13 = 7

8x + 55 = 7 

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x = -48/8   divide both sides by 8

x = - 6

hope this helped, God bless!
3 0
3 years ago
Find the values of e, a, b, and c for r = 24/(4 + 2sin theta)
Kaylis [27]

Answer:

Step-by-step explanation:

r=24/(4+2sin θ)

4r+2r sin θ=24

divide by 2

2r+r sin θ=12

2√(x²+y²)+y=12

2√(x²+y²)=12-y

squaring

4(x²+y²)=144-24y+y²

4x²+3y²+24y=144

4x²+3(y²+8y+16-16)=144

4x²+3(y+4)²-48=144

4x²+3(y+4)²=144+48

4x²+3(y+4)²=192

divide by 192

\frac{x^2}{48}+\frac{(y+4)^2}{64}=1

which is an ellipse with centre(0,-4) major axis on y-axis.

a^2=64\\a=8\\major axis=2*8=16\\b^2=48\\b=4\sqrt{3}\\minor ~axis=2*4 \sqrt{3}=8 \sqrt{3}\\b^2=a^2(1-e^2)\\48=64(1-e^2)\\1-e^2=48/64=3/4\\e^2=1-3/4=1/4\\e=1/2\\c^2=a^2-b^2\\c^2=64-48=16\\c=4

7 0
4 years ago
Approximate square root of 5, 13, 21 and 38
Mashcka [7]

\sqrt{5}=2.23607, \sqrt{13}=3.60555, \sqrt{21}=4.58258, \sqrt{38}=6.16441

These are all approximate decimal versions of the given numbers' square roots. If you need help rounding the decimals to a certain number of digits, let me know.

I hope this helps :)

4 0
3 years ago
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