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Aleonysh [2.5K]
3 years ago
7

What is the answer for this math

Mathematics
1 answer:
dolphi86 [110]3 years ago
3 0

A and C is the answer for the question

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Brian needs to find the value of a number, a, so that when (x^2+3x) is added to the binomial (3x^2+ax), the sum simplifies to 4x
Julli [10]

Answer:

a = 9

Step-by-step explanation:

First we need to add  (x^2+3x)  to (3x^2+ax),

(x^2+3x)+(3x^2+ax)

Expand

= x^2+3x+3x^2+ax

Collect the like terms

= x^2+3x^2+3x+ax

= 4x^2 + 3x + ax

= 4x^2+(3+a)x

Equate the solution to 4x^2+12x

4x^2+(3+a)x = 4x^2+12x

Comparing the like terms on both sides

(3+a)x =12x

3 + a = 12

a = 12 - 3

a = 9

Hence the value of a is 9

6 0
3 years ago
If the Lafita family deposits 8500$ ina savings account at 6.75% interest, compounded continuously, how much will be the account
julsineya [31]
A=pe^rt
A=8,500×e^(0.0675×25)
A=45,950.57
8 0
3 years ago
Right answer gets brainlist
jok3333 [9.3K]

Answer:

there ain't nun to answer here

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Solve for (x)<br> x+15=3x+5
dolphi86 [110]

Answer:

x + 15 = 3x + 5 \\ 15 - 5 = 3x - x \\ 10 = 2x  \\ \frac{10}{2}  =  \frac{2x}{2}  \\ x = 5

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em><em>.</em>

8 0
3 years ago
A conical container can hold 120π cubic centimeters of water. The diameter of the base of the container is 12 centimeters.
o-na [289]

Answer:

its 245

Step-by-step explanation:

i had a test with the same question, i promise its right :)

4 0
3 years ago
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