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laiz [17]
3 years ago
9

Really need help!!! quadratic equations UGH

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
2m³ + 10 m = 48

2m² + 10m - 48 = 0, solve this quadratic for m. Apply the formula:

m'=[-b + √(b²+4ac)]/2a and m" ==[-b - √(b²+4ac)]/2a

WHERE  a = 2, b=10, c= - 48
and you will find :
m=  3 and m= - 8 (answer a)
kati45 [8]3 years ago
4 0
2m^2 + 10m = 48\\
2m^2+10m-48=0\\
m^2+5m-24=0\\
m^2-3m+8m-24=0\\
m(m-3)+8(m-3)=0\\(m+8)(m-3)=0\\
m=-8 \vee m=3
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8 0
3 years ago
What is the slope of the line through the points (6,-8)And (3,- 4)​
Nina [5.8K]

Answer:

y=(-4/3)x

Step-by-step explanation:

you put the points into this equation to find the slope

(y2-y1)/(x2-x1)

now lets label the points

(6,-8)

x1=6 and y1=-8

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x2=3 and y2=-4

Input into equation

(-4-(-8))/(3-6)=

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7 0
3 years ago
What is the surface area of the cube below?
Elden [556K]

Answer:

150 units^2

Step-by-step explanation:

A cube has all equal sides. This one has five units for every side.

There are 6 faces here, and 4 vertices for every face.

The equation would look like this 6 x side^2.

Which would also equal to 6 x 5^2.

If you do this, you will find that the answer is 150 units^2.

7 0
3 years ago
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Nostrana [21]

Answer:

7x - 6y = 16

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using substitution method

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4 0
3 years ago
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vivado [14]

Step-by-step explanation:

1. Arrange all the numbers in ascending order.

2. Since there are 10 numbers, there will be 2 numbers in the middle, add those two middle numbers and divide by 2.

3. The result is your answer.

5 0
3 years ago
Read 2 more answers
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