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natka813 [3]
3 years ago
11

Please Help pronto!!!! Given f(x)=4x^2+6x and 2x^2+13x+15, find (f+g)(x). Show your work.

Mathematics
1 answer:
stellarik [79]3 years ago
7 0

Answer:

{6x}^{2}  + 19x + 15

Step-by-step explanation:

we are give f(x) and g(xl

4 {x}^{2}  + 6x + 2 {x}^{2}  + 13x + 15

combine like terms and it is done.

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Solve the quadratic equation. <br><br> 3x^2 - 5= 70<br><br> (Please explain steps)
Svet_ta [14]
Simplifying
3x2 + -5 = 70

Reorder the terms:
-5 + 3x2 = 70
Solving
-5 + 3x2 = 70

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 3x2 = 70 + 5

Combine like terms: -5 + 5 = 0
0 + 3x2 = 70 + 5
3x2 = 70 + 5

Combine like terms: 70 + 5 = 75
3x2 = 75

Divide each side by '3'.
x2 = 25

Simplifying
x2 = 25

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5 0
2 years ago
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Define the variables for the situation. Then enter an equation.
stepan [7]

Answer:

A= L + 5

Step-by-step explanation:

Andrews class is equal to Lauren's class and there are more 5 students

4 0
3 years ago
Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the rec
Ann [662]

Answer:

Option B is correct that is  amount she is getting per bottle is $0.15  

Step-by-step explanation:

We have been given the information that melisande collected 14 bottles on saturday and 9 bottles on sunday

That means she has collected total of 23 bottles

Let us assume that the amount she is paid for recycling is $b

Since, she is left with $3.20 after the amount she gets for bottles we will get the equation below:

23b=3.20

Now, since she has to pay one time service fee equation will become

23b -0.25 =3.20

After simplification we will  get

23b=3.20+0.25=3.45

b=3.45/23=.15

b=$0.15

Therefore, The amount she is getting per bottle is $0.15

4 0
2 years ago
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BRAINLIEST BRAINLIEST!!! <br> EASY MATH! Do with explanation!!
Anuta_ua [19.1K]

Answer:

<em>Answer is </em><em>given below with explanations</em><em>.</em><em>,</em>

Step-by-step explanation:

1)formula \: for \: linear \: equation \: is \:  \\ ax + by + c = 0 \\ 2) \: solution \: of \: the \: equation \: y = 9x - 3 \\ (2,15) \: is \: the \: solution \:  \\ on \: substitutuing \: the \: points \\ 15 = 9(2) - 3 \\ 15 = 18 - 3 \\ 15 = 15 \\ hence \: proved\\ 3) \: given \:( k,7) \: is \: a \: solution\\ \: of \: y =  - 4x + 1 \\ on \: substitutuing \: the \: points  \\ 7 =  - 4k + 1 \\ 4k =  - 7 + 1 \\ 4k =  - 6 \\ k = \frac{ - 6}{4}  \\ k = \frac{ - 2}{3}

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>.</em>

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2 years ago
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8 liters of 8% lemonade should be added to make the mixture 10% lemon juice.
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