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ddd [48]
3 years ago
15

If y = 12x, which table shows the values of y for different values of x?

Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0
The answer is

B. x 0 2 4
y 0 24 48

100% Verified!

Hope This Helps!
Maslowich3 years ago
6 0

Answer:

it's

x = 0 \:  \:  \:   \:  \: 2 \: \:  \:  \:  \:  4 \\ y = 0 \:  \:  \:  \:  \: 24 \:  \:  \:  \:  48

Step-by-step explanation:

y = 12x \\  =  x = 0 \\  = y = 12 \times 0 \\  = y = 0 \\  \\ y = 12 x\\  = x = 2 \\ y = 12 \times 2 \\ y = 24 \\  \\ y = 12x \\ =x = 4 \\ y = 12 \times 4 \\ y = 48

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The common factor is 7 so its

7(2x - 3)

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Find the quadratic function that fits the following data. which one function fits.
Oksana_A [137]

Answer:

C

Step-by-step explanation:

The general rule for the quadratic function is

y=ax^2+bx+c

Use the data from the table:

y(50)=130\Rightarrow 130=a\cdot 50^2+b\cdot 50+c\\ \\y(70)=130\Rightarrow 130=a\cdot 70^2+b\cdot 70+c\\ \\y(90)=200\Rightarrow 200=a\cdot 90^2+b\cdot 90+c

We get the system of three equations:

\left\{\begin{array}{l}2500a+50b+c=130\\ \\4900a+70b+c=130\\ \\8100a+90b+c=200\end{array}\right.

Subtract these equations:

\left\{\begin{array}{l}4900a+70b+c-2500a-50b-c=130-130\\ \\8100a+90b+c-2500a-50b-c=200-130\end{array}\right.\Rightarrow \left\{\begin{array}{l}2400a+20b=0\\ \\5600a+40b=70\end{array}\right.

From the first equation

b=-120a

Substitute it into the second equation:

5600a+40\cdot (-120a)=70\Rightarrow 800a=70,\\ \\ a=\dfrac{7}{80},\\ \\ b=-120\cdot \dfrac{7}{80}=-\dfrac{21}{2}=-10.5

So,

2500\cdot \dfrac{7}{80}+50\cdot (-10.5)+c=130\Rightarrow 218.75-525+c=130\\ \\c=130-218.75+525=436.25

The quadratic function is

y=\dfrac{7}{80}x^2-10.5x+436.25\\ \\y=0.0875x^2-10.5x+436.25

4 0
3 years ago
In the equation 3x+ 2 = 11 which number is the constant?
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Answer:

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Step-by-step explanation:

A constant is a number that always has the same value. In this equation 2 and 11 are the constants because they stay the same. 3x doesn't stay the same because 3 is multiplying x.

Hope This Helps :)

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3 years ago
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erastova [34]
In a triangle, the midsegment is parallel to and half of non-intersecting side.
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3 years ago
Read 2 more answers
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