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Step2247 [10]
2 years ago
5

Write the equation of a line that has m = 2 and b = - 3.

Mathematics
1 answer:
MatroZZZ [7]2 years ago
6 0

Answer:

Step-by-step explanation: y=2x−3

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What are all numbers proportional to 20/5
maks197457 [2]

Answer: 100/25 and 4/1 and 60/15

Step-by-step explanation:

20/5=4, 100/25=4, 4/1=4, and 60/15=4

8 0
3 years ago
How many tons are in 512,000 ounces?
murzikaleks [220]

Answer:

16 Tons

Step-by-step explanation:

divide 512,00 by 32000

3 0
3 years ago
URGENT NEED ANSWERS •_•
Anna11 [10]
9. 130 = x + 137
answer x = -7

10. 9x-3 = 4 + 8x
9x = 7 + 8x
answer x = 7
4 0
3 years ago
Someone please be awesome and help me please :(
solong [7]

Answer:

(x+\frac{b}{2a})^2+(\frac{4ac}{4a^2}-\frac{b^2}{4a^2})=0

(x+\frac{b}{2a})^2=\frac{b^2-4ac}{4a^2}

x=\frac{-b}{2a} \pm \frac{\sqrt{b^2-4ac}}{2a}

Step-by-step explanation:

x^2+\frac{b}{a}x+\frac{c}{a}=0

They wanted to complete the square so they took the thing in front of x and divided by 2 then squared.  Whatever you add in, you must take out.

x^2+\frac{b}{a}x+(\frac{b}{2a})^2+\frac{c}{a}-(\frac{b}{2a})^2=0

Now we are read to write that one part (the first three terms together) as a square:

(x+\frac{b}{2a})^2+\frac{c}{a}-(\frac{b}{2a})^2=0

I don't see this but what happens if we find a common denominator for those 2 terms after the square.  (b/2a)^2=b^2/4a^2 so we need to multiply that one fraction by 4a/4a.

(x+\frac{b}{2a})^2+\frac{4ac}{4a^2}-\frac{b^2}{4a^2}=0

They put it in ( )

(x+\frac{b}{2a})^2+(\frac{4ac}{4a^2}-\frac{b^2}{4a^2})=0

I'm going to go ahead and combine those fractions now:

(x+\frac{b}{2a})^2+(\frac{-b^2+4ac}{4a^2})=0

I'm going to factor out a -1 in the second term ( the one in the second ( ) ):

(x+\frac{b}{2a})^2-(\frac{b^2-4ac}{4a^2})=0

Now I'm going to add (b^2-4ac)/(4a^2) on both sides:

(x+\frac{b}{2a})^2=\frac{b^2-4ac}{4a^2}

I'm going to square root both sides to rid of the square on the x+b/(2a) part:

x+\frac{b}{2a}=\pm \sqrt{\frac{b^2-4ac}{4a^2}}

x+\frac{b}{2a}=\pm \frac{\sqrt{b^2-4ac}}{2a}

Now subtract b/(2a) on both sides:

x=\frac{-b}{2a} \pm \frac{\sqrt{b^2-4ac}}{2a}

Combine the fractions (they have the same denominator):

x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

6 0
3 years ago
Please help with explanation if anyone can
diamong [38]

Answer:

3.7 million

Step-by-step explanation:

14,100,000 = 3,000,000 + 3p

3p = 11,100,000

p = 11,100,000 / 3

p = 3,700,000

6 0
2 years ago
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