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2 years ago

For the equation y - 3 = -2(x + 1) the line has a slope of -2 and contains what point

2 answers:

6 0

It contains multiple points. If you’re looking specifically for a point plug the number that is on the x axis into the equation then solve for y.

yarga [219]2 years ago

6 0

Answer:

(0, -2) --> Y-Intercept

Step-by-step explanation:

y - 3 = -2( x + 1 )

y - 3 = -2x - 2

y= -2x -2

Y-Intercept = (0,y)

= (0, -2)

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What are the potential solutions to the equation 2ln(x+3)=0

skad [1K]

$2\ln(x+3)=0\implies \ln(x+3)^2=0\implies e^{\ln(x+3)^2}=e^0\implies (x+3)^2=1$

Expanding the left side gives

$x^2+6x+9=1\implies x^2+6x+8=0\implies (x+4)(x+2)=0$

which gives two solutions, $x=-4$ and $x=-2$ . But if $x=-4$ , then $\ln(x+3)=\ln(-1)$ , but this number isn't real, so $x=-4$ is an extraneous solution. Meanwhile if $x=-2$ , you get $\ln(-2+3)=\ln1=0$ , so this solution is correct.

"Potential solutions" might refer to both possibilities, but there is only one actual (real) solution.

4 0

3 years ago

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Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take

egoroff_w [7]

Answer: it will take them about 24 minutes working together

Step-by-step explanation:

1/40 + 1/60 =

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1/24 = 1/t

Cross multiplication:

1*t = 1*24

t= 24

3 0

2 years ago

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Solve for e.<br><br> 4/3=-6e-5/3

cricket20 [7]

Answer:

e = 1/2

Step-by-step explanation:

to solve foe e in this 4/3=-6e-5/3

solution

4/3=-6e-5/3

4/3 + 5/3 = 6e

find the lcm of the left hand side

4 + 5/3 = 6e

9/3 = 6e

cross multiply

3 x 6e = 9 x 1

18e = 9

divide both sides by the coefficient of e which is 18

18e /18 = 9/18

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therefore the value of e in the expression above is evaluated to be equals to 1/2

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3 years ago

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Yes because you only need a 90 degree to become a right

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3 years ago

Are the two expressions equivalent 5(3x+8) 8x+8 when x=10

Brums [2.3K]

Answer:no

Step-by-step explanation:

5(3(10)+8)

5(30+8)

5(38)=190

8(10)+8

80+8

88≠190 so no

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3 years ago

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