Write the point-slope form of the equation of the line through the given point with the given slope.Through (-2,0) slope=2

Answers

Answer 1

Answer: $the\ point-slope\ formula:y-y_1=m(x-x_1)\n===============================\n\n(-2;\ 0)\to x_1=-2;\ y_1=0\ and\ m=2\n\ntherefore\n\ny-0=2(x-(-2))\n\ny=2(x+2)\n\n\boxed{y=2x+4}$

Answer 2

Answer: Steps:
1. Your point slope formula is
Y-Y1=m(x-x1)
2. Y1=0 m=2 (slope) x1=-2
3. Do substitution
4. Your answer is
Y-0=2(x +2)
Ps: in case you are wondering why I put plus 2 instead of negative 2 is because you are supposed to do the opposite when subtracting a negative

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Factor using ac-method and factor completely, 25x²-95x-20= ______ thanx for the help.

Answers

$25x^2-95x-20=5(5x^2-19x-4)=5(5x^2+x-20x-4)\n\n=5[x(5x+1)-4(5x+1)]=5(5x+1)(x-4)$

25x²-95x-20
=5(5x²-19x-4)
=5(5x+1)(x-4) <- this is the final answer. :)

The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth.

Answers

The surface area of a sphere is A = 4π R²

The volume of a sphere is V = (4/3) ( π) (R³)

The ratio of (surface area) to (volume) is

      4 π R² / (4/3) (π) (R³)

Divide top and bottom by 4π :    R² / (1/3) (R³)

Multiply top and bottom by 3: 3 R² / R³

Divide top and bottom by R² :    3 / R .

For the Earth,

   A / V = (3) / (3,960 miles) = 0.00076 per mile (rounded)

Answer:

B. 0.00076

Step-by-step explanation:

Unit test on e2020

Given the following system of equations, identify the type of system.x + 2y = 6
3x + 6y= -9
A. Consistent
B. Inconsistent
C. Equivalent

Answers

Answer:

The two lines in the graph are parallel, so it is B. Inconsistent since there is no solution.

Answer:

the answer would be B inconsistent

Geometry..they all look correct? But there isn't an all the above..so..

Answers

A is the incorrect answer cause all the others continue from the last letter unlike this one it does not so it doesn't continue the triangle

To celebrate the first day of school, Reagan brought in a tray of caramel brownies and walnut brownies. The tray had a total of 20 brownies, of which 10% were caramel. How many caramel brownies did Reagan bring?

Answers

Answer:

18 I think

Step-by-step explanation:

Answer:

Step-by-step explanation:

Reagan brought 2 caramel brownies.

Solve using a proportion.

$(?)/(20)$ = $(10)/(100)$

You're trying to find how many brownies he brought were caramel. We know Reagan brought a total of 20 brownies. Therefore since you don't know how many caramel brownies he brought, the fraction would be ?/20. Next, you know he brought brownies in which 10% were caramel. In proportions, the denominator would be 100% since that is the total percentage. Therefore, the proportion would be 10%/100%. Now we just have to cross multiply.

Proportion:

$(?)/(20)$ = $(10)/(100)$

10 x 20 = 200

200/100= 2

Thus, Reagan brought 2 caramel brownies.

Caroline bought 20 shares of stock at 101/2, and after 10 months the value of the stocks was 111/4. If Caroline were to sell all her shares of this stock, how much profit would she make? A. $15 B. $10 C. $225 D. $210