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Darina [25.2K]
3 years ago
14

Use the slope formula

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

m = -2

Step-by-step explanation:

First lets fill in the variables

m = \frac{3-9}{2--1}

Now solve

3 - 9 = -6

2 - -1 = 3

-6/3 = -2

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Which of the following ordered pairs is a solution to the equation 2x+6y=−6 ?
pogonyaev
(-3, 2)         -6+12=-6
(3, -2)          6-12=-6
6 0
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Select the correct answer from each drop-down menu. The possible values of x in the equation x^2-3/4 x=-1/4 are blank ± blank .
zlopas [31]

Answer:

x = 3/8 +/- i(√5)/8.

Step-by-step explanation:

I can't see any list by this is the solution of the equation:

x^2 - 3/4x = -1/4

x^2 - 3/4 x + 1/4 = 0

Multiply by 4 to remove the fractions:

4x^2 - 3x + 1 = 0

x = [-(-3) +/- sqrt(3)^2 - 4*4*1)] / 8

x = 3/8 +/-√ (-5) / 8

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8 0
3 years ago
J has a loan of $42,350. This loan has a simple interest rate of 8% per year. What is the amount
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6776

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8℅ = 0.08

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4 0
3 years ago
Find 0. Round to the nearest degree.<br><br> A. 21°<br> B. 20°<br> C. 69°<br> D. 70°
kap26 [50]

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The general solution of 2 y ln(x)y' = (y^2 + 4)/x is
Sav [38]

Replace y' with \dfrac{\mathrm dy}{\mathrm dx} to see that this ODE is separable:

2y\ln x\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{y^2+4}x\implies\dfrac{2y}{y^2+4}\,\mathrm dy=\dfrac{\mathrm dx}{x\ln x}

Integrate both sides; on the left, set u=y^2+4 so that \mathrm du=2y\,\mathrm dy; on the right, set v=\ln x so that \mathrm dv=\dfrac{\mathrm dx}x. Then

\displaystyle\int\frac{2y}{y^2+4}\,\mathrm dy=\int\dfrac{\mathrm dx}{x\ln x}\iff\int\frac{\mathrm du}u=\int\dfrac{\mathrm dv}v

\implies\ln|u|=\ln|v|+C

\implies\ln(y^2+4)=\ln|\ln x|+C

\implies y^2+4=e^{\ln|\ln x|+C}

\implies y^2=C|\ln x|-4

\implies y=\pm\sqrt{C|\ln x|-4}

4 0
2 years ago
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