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Veseljchak [2.6K]
3 years ago
6

What are the values of a, b, and c in the quadratic formula given the equation 2x^2 + 6x= -8 ?

Mathematics
2 answers:
AlladinOne [14]3 years ago
8 0
It should be written in the form ax²+bx+c=0,
so you meed to move -8 to the left side
2x²+6x+8=0
the number in front of x²  is a
the number in front of x is b
the number without x is c,
so a=2, b=6,c=8
shutvik [7]3 years ago
8 0
QUADRATIC \: \: EQUATIONS \\ \\ \\\\Standard \: form \: of \: Quadratic \: equation \: is \: - \\ a {x}^{2} + bx + c \: = \: 0 \\ \\ Given \: expression \: \: - \\ 2 {x}^{2} + 6x = - 8 \\ \\ 2 {x}^{2} + 6x + 8 = 0 \\ \\ Comparing \: with \: Standard \: form \: \\ \\ We \: get \: \\ \\ a = 2 \\ b = 6 \\ c = 8 \: \: \: \: \: \: \: \: \: \: Ans.
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Inverse of the function f(x) = 2x + 5?
andrew-mc [135]

Answer:

y^{-1} =\frac{1}{2} x-\frac{5}{2}

Step-by-step explanation:

3 0
3 years ago
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What is the value of x in the equation x + 24. 5 =34. 8
ser-zykov [4K]

Answer:

x = 10.3

Step-by-step explanation:

x + 24. 5 = 34.8

  - 24.5   - 24.5

x = 10.3

Check your answer:

x + 24. 5 = 34.8

10.3 + 24.5 = 34.8

34.8 = 34.8

Hope this helps!

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2 years ago
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.................................:........:.................
8 0
3 years ago
Find the volume of the prism.<br> 9km 8km 6km
HACTEHA [7]

The correct answer is option B which is the volume of the prism is 216 km³.

<h3>What is the volume of the prism?</h3>

A prism is a three-dimensional solid with a triangular base called a triangular prism. The volume of the triangular prism is equal to the product of the area of the base and the height of the prism.

The volume of the prism will be calculated by using the formula below:-

V  =  Area of the base   x   Height

Since the base is a right-angle triangle so we will calculate the area of the right-angle triangle.

V  =  Area of the triangle  x  Height

V  =  ( 1/2 ) x 8 x 6 x ( 9 )

V  =  216 km²

Therefore the correct answer is option B which is the volume of the prism is 216 km³.

To know more about volume follow

brainly.com/question/1972490

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6 0
2 years ago
Why is it necessary to apply inverse operations on both sides of the equals l sign when solving an equations
liraira [26]
Take this example (cause it's easy to explain)

10+5x=15x

To solve it we have to minus five on both side. We have to do this because we need to isolate the variable (in this case x) on the one side so we can divide and solve.

You would -5x (inverse from positive 5) from both sides on this because whatever you do to one side you have to do to the others to make it equal. In this case the answer would be x=1 (again cause it's easy lol.)

I hope this helps you!
8 0
3 years ago
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