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Dmitry [639]
2 years ago
13

Type the correct answer in the box. Rewrite the quadratic function in the form that best reveals the zeros of the function. f(x)

=2(2x2+4x)+3
Mathematics
1 answer:
sergey [27]2 years ago
5 0

Try this suggested option:

Step-by-step explanation:

f(x)=2(2x²+4x)+3; ⇔

f(x)=4(x²+2x)+3; ⇔

f(x)=4(x²+2x+1)+3-4; ⇔

f(x)=4(x+1)²-1; ⇔

f(x)=(2x+1)(2x+3).

Then the roots are:

\left[\begin{array}{ccc}x=-1.5\\x=-0.5\end{array}.

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Please i need help wha is 5/3 + 2/4
Anettt [7]
Using like denominators, we can turn this into 20/12 + 6/12, then you just add the numerators to get 26/12, then simplify to get 13/6
7 0
3 years ago
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Combine the like terms to simplify the expression: 9+3+17xy(2)+8y(3)+10x –13xy(2) – 9x – 6y(3)
seraphim [82]
9 + 3 + 17xy² + 8y³ + 10x - 13xy² - 9x - 6y³
12 + 17xy² + 8y³ + 10x - 13xy² - 9x - 6y³
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7 0
3 years ago
What is 30 in the ratio 3:2
TiliK225 [7]

Total units in ration = 3+2 =5

So, 1 unit of the 30 here will be, 30/5 = 6

30 in the ration 3:2 will be 18:12

Did you understand???


4 0
3 years ago
You move down 1 units and up 2 units. You end at (-3,1). Where did you start? On a number graph 1 through 5 axis graph
Roman55 [17]

Let's do it step by step:

First we need to understand that moving upwards would be addition to y-coordinates, while moving downwards would be deduction to the y-coordinates.

Moving to rightwards would be addition to x-coordinates and leftwards would be deduction to x-coordinates.

As we moved down by 1 unit and up for 2 units, it means that we are originally upward for one unit and downward by 2 units, which makes downwards for 1 units and would be -1 to the y-coordinates:

(-3,1 -1)

=(-3,0)

Therefore the start would be (-3,0).

Hope it  helps!


6 0
4 years ago
Help me for brainlist no cap
Schach [20]

Answer:

C

Step-by-step explanation:

So first, you find the area of a rectangle, which would be 15 * 30 = 450. Next, find the area of the semicircle by doing \pi *r^2 / 2 (you have to divide by 2 because it's only have a circle).

The radius is half of 15, so 15 / 2 = 7.5. This would be:

\pi * 7.5^2 / 2

=\pi * 56.25 /2

=28.125\pi

=28.125*3.14=88.3125

The last step is to add 450 + 88.3125 = about 538.3 m^2

7 0
3 years ago
Read 2 more answers
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