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3 years ago

I haven't done this in so long. I forgot how. Please help!

Mathematics

2 answers:

zhuklara [117]3 years ago

6 0

B is the answer yesssss

marusya05 [52]3 years ago

3 0

B is right do you have to show your work ?

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I need the answer, i'll give 2 points, lol

Dimas [21]

I think is 192 but I'm not sure

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2 years ago

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Find the constant of variation (k) for the inverse variation. Then write an equation for the inverse situation.

notka56 [123]

y = k/x

5 =k/7.5

k = 7.5/*5= 37.5

answer is D

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3 years ago

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Christen sells boxes of cookies for $4 each. Rafael sells boxes of cookies for $7 each. Each of them sold the same dollar amount

KATRIN_1 [288]

Answer:

28$ and christen sold 7 boxes while Rafael sold 4

Step-by-step explanation:

lower common multiple so take 4 x 7 = 28 as then take the 28 and divide by how much Christen gets a box which is 4 and 28 divided by 4 is 7

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3 years ago

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Find the standard form of the circle x2 + y2 – 6x + 10y + 24 = 0 by completing the square.

hichkok12 [17]

Answer:

$(x-3)^2+ (y+5)^2=10$

Step-by-step explanation:

Given the equation of the circle: $x^2 + y^2 - 6x + 10y + 24 = 0$

We wish to express it in a Standard form:

We begin by re-arranging:

$x^2 - 6x + y^2 + 10y = - 24$

Next, divide the coefficient of x by 2, square it and add it to both sides.

Do the same for y.

$x^2 - 6x +(-3)^2+ y^2 + 10y+5^2 = - 24+(-3)^2+5^2$

Next, we factorize

$(x-3)^2+ (y+5)^2 = - 24+9+25\\(x-3)^2+ (y+5)^2=10$

This is the standard form.

6 0

3 years ago

Can someone help me on this ??

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

$\bold{Standard\ form:}\ Ax+By=C\\\\\bold{Point\ Slope\ form:}\ y-y_1=m(x-x_1)\\\\\bold{Slope\ Intercept\ form:}\ y=mx+b\\\\\bold{General\ form:}\ Ax+By+C=0$

$1.\ y=4x-2\to y=mx+b\to m=4,\ b=-2\\\\\bold{Slope\ Intercept\ form}\\\\2.\ y-3=2(x+1)\to y-y_1=m(x-x_1)\to m=2,\ x_1=-1,\ y_1=3\\\\\bold{Point\ Slope\ form}\\\\3.\ 5x+3y=7\to Ax+By=C\to A=5,\ B=3,\ C=7\\\\\bold{Standard\ form}\\\\4.\ y+5=3(2x-4)\to\boxed{\bold{2x}}!!!\\\\\bold{None\ of\ the\ Forms}$

5 0

3 years ago