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Naily [24]
4 years ago
5

What substation should be used to rewrite 4x^4-21z^2+20=0

Mathematics
1 answer:
elena-s [515]4 years ago
6 0
\left[x _{4}\right] = \left[ \frac{ - \left( -1\right) ^{\frac{3}{4}}\,\sqrt[4]{\left( 20 - 21\,z^{2}\right) }}{\sqrt[4]{4}}\right][x​4​​]=[​​4​​√​4​​​​​−(−1)​​4​​3​​​​​4​​√​(20−21z​2​​)​​​​​]
I hope helping with u
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Find perimeter in cm of the diagram
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3 sides of square is 3*12=36 cm


perimeter for the full circle is 2 * pi * radius


which is =2 * 22/7 * 12 =75.43 cm


so 360° =75.43 cm


for 150° = 75.43/360 *150 =31.43


all together =36 +31.43 =67.43 cm


8 0
3 years ago
Help me with these 3 questions, please
Zina [86]

Answer:

1. x = -4y ---> y = (-1/4)x

slope = -1/4. y-intercept = (0,0)

2. y = -2x + 4

3. y = (1/3)x - 1

Step-by-step explanation:

1. Re-write your equation so that x is on the right and y is on the left:

x = -4y ---> y = (-1/4)x

slope = -1/4. y-intercept = (0,0)

2. y-intercept = (0,4) ----> P1

x-intercrpt = (2,0) ----> P2

slope m = (y2 - y1) / (x2 - x1)

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= -2

therefore, y - y1 = mx - x1 ---> y - 4 = -2x

or y = -2x + 4

3. y-intercept = (0,-1)

x-intercept = (3,0)

m = (0 - (-1)) / (3 -0) = 1/3

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3 years ago
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Bond [772]

Answer:

x = 0.2(10^y/a).

Step-by-step explanation:

y = alog(5x)

y = log(5x)^a)   By the definition of a log:

(5x)^a  = 10^y

5x = (10^y) ^ 1/a

x = 0.2(10^y/a)

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If m= 15 and n = 3, what is the value of the following expression?
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Answer:

D

Step-by-step explanation:

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3 years ago
Plz plz help thanks in advance
Natali [406]

Answer:

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Step-by-step explanation:

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3 years ago
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