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Paha777 [63]
3 years ago
7

Re-write the quadratic function below in standard form y=3(x+4)(x+1)

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

y = 3x² + 15x + 12

Step-by-step explanation:

A quadratic function in standard form is

y = ax² + bx + c ( a ≠ 0 )

Given

y = 3(x + 4)(x + 1) ← expand the factors using FOIL

  = 3(x² + 5x + 4) ← distribute parenthesis by 3

  = 3x² + 15x + 12

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aalyn [17]
Given that each of the brick is \frac{2}{3} ft tall and the finished stack of bricks is 4\frac{2}{3} ft tall.

Let the number of bricks in the stack be x, then

\frac{2}{3} x=4 \frac{2}{3} = \frac{14}{3}  \\  \\ \Rightarrow x= \frac{ \frac{14}{3} }{ \frac{2}{3} } = \frac{14}{3} \times \frac{3}{2}  \\  \\ = \frac{14}{2} =7

Therefore, 7 bricks will go in the stack.
3 0
3 years ago
Write an equation of a line parallel to line EF in slope-intercept form that passes through the point (2, 6).
irakobra [83]

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7 0
3 years ago
A function is shown in the table.
Maurinko [17]

Answer:

Step-by-step explanation:

$1.11

7 0
3 years ago
Question 5<br> Find the slope of the line that goes through the points (-2, -1) &amp; (-1,-2)
Cloud [144]

Answer:

-1

Step-by-step explanation:

solution:

(-2 , -1) = (x1 , y1)

(-1 ,-2) = (x2 , y2)

we know that,

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=(-2 - -1)/ (-1 - -2)

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3 0
3 years ago
I need help ! Please help me
Mazyrski [523]
4d² / (d+1)  when d=3;
therefore:

4(3)² / (3+1)=4(9) / 4=9

Answer:4d² / (d+1)  when d=3 is equal to 9. 
4 0
3 years ago
Read 2 more answers
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