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3 years ago

How to create an equation in point slope form

Mathematics

2 answers:

poizon [28]3 years ago

5 0

Answer:

the formula is y=mx+b

Step-by-step explanation:

Sorry I wasn't sure exactly what you were asking. I hope that helps

postnew [5]3 years ago

5 0

Answer:

$y=mx+b$

Step-by-step explanation:

Slope-intercept form: $y=mx+b$

m: represents the slope and is constant.

b: represents the y-intercept.

Rise/run

$\frac{rise}{run}=m=\frac{y^2-y^1}{x^2-x^1}$

Hope this helps!

-Charlie

Thanks!

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98.92 as a decimal to 2 places

Vadim26 [7]

Answer:

98.9 i think

Step-by-step explanation:

to round to 2 decimal places, look for the number 2 places from the decimal point. that number is 2. is there any number next to it on the right? no. so just round.92 which is 98.9

6 0

3 years ago

Read 2 more answers

Find the number of liters in 12.8 gal of gasoline. Round to the nearest hundredth.

Svetlanka [38]

Answer: 48.45 liters

Step-by-step explanation:

Since, $1 \text{ gallon} = 3.78541 \text{ liters}$

⇒ $12.8 \text{ gallon} = 12.8\times 3.78541$

⇒ $12.8 \text{ gallon} = 48.453248 \text{ liters} \approx 48.45 \text{ liters}$

Thus, there are approx 48.45 liters in 12.8 gallon.

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3 years ago

Simply 3x +9y + 2x<br> Please help me

dem82 [27]

Answer:

5x+9y

Step-by-step explanation:

4 0

3 years ago

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The value of a dvd player decreases by 60% each year. If you purchased this dvd player today for $180, how much would the player

Volgvan

The formula is
A=p (1-r)^t
A future value?
P present value 180
R rate of decreases 0.6
T time 2 years
A=180×(1−0.6)^(2)
A=180×(0.4)^(2)
A=28.8

3 0

3 years ago

How many gallons of 30% alcohol solution and how many of 60% alcohol solution must be mixed to produce 18 gallons of 50% solutio

allochka39001 [22]

Answer:

x = 6 gallons (of 30% alcohol)

y = 12 gallons (of 60% alcohol)

Step-by-step explanation:

Let

x = liters of 30% alcohol

y = liters of 60% alcohol

There are two unknowns, we need two equations

x + y = 18. (1)

0.30x + 0.60y = 0.50(x+y) (2)

From (1)

x + y = 18

y = 18-x

Substitute the value of y into (2) and solve for x:

0.30x + 0.60y = 0.50(x+y)

0.30x + 0.60(18-x) = 0.50(x+18-x)

0.30x + 10.8 - 0.60x = 0.50(18)

10.8 - 0.30x = 9

-0.30x = -1.8

Divide both sides by -0.30

x = 6 gallons (of 30% alcohol)

Substitute x=6 into (1) and solve for y:

x + y = 18

6 + y = 18

y = 12 gallons (of 60% alcohol)

5 0

3 years ago