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Elina [12.6K]
3 years ago
6

Use the Quadratic Formula to Solve: 8x^2+4x-16= -x^2

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0
Solve the equation for x by finding a, b and c of the quadratic then applying the quadratic formula

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Help. help.!!!!!!!!!!!!!!!!!!
Shkiper50 [21]

Answer:

2

Step-by-step explanation:

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3 years ago
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I give up on math. help.
hichkok12 [17]

Answer:

try b

Step-by-step explanation:

5 0
2 years ago
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in the morning kylie drove to the store and used 7/10 of a gallon of gas. In the afternoon, she drove to the movie theater and u
Dimas [21]
Alright so all we are doing is adding 7/10 and 1/2
But sometimes that can be difficult because they don’t have the same denominator
In that case, we want to give them the same denominator (bottom number if the fraction)
So we do this by multiply 1/2 by 5/5 which will get you 5/10
We now have 5/10 and 7/10 which both have the same denominator (10)
So add them together and you will get 12/10
Now that’s more than 1 gallon so let’s figure out how much more
So 12/10 -10/10 (full gallon) = 2/10
So she used 1 2/10 gallons
If you want it in decimal form then it’s 1.2 (divide 2 by 10)
Hope that helped!
8 0
3 years ago
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I will give you brainliest!
Bingel [31]

Answer:

110

Step-by-step explanation:

i think if its wrong im sorry

6 0
3 years ago
Change of subject x the subject<br> y=2x+3/5x-2
Nezavi [6.7K]

Answer:

x = \frac{3+2y}{5y-2}

Step-by-step explanation:

Given

y = \frac{2x+3}{5x-2} ← multiply both sides by (5x - 2)

y(5x - 2) = 2x + 3 ← distribute left side

5xy - 2y = 2x + 3 ( add 2y to both sides )

5xy = 2x + 3 + 2y ( subtract 2x from both sides )

5xy - 2x = 3 + 2y ( factor out x from each term on the left side )

x(5y - 2) = 3 + 2y ← divide both sides by (5y - 2)

x = \frac{3+2y}{5y-2}

7 0
3 years ago
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