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il63 [147K]
3 years ago
14

WILL GIVE BRAINLIEST! Is the relationship between x and y as shown in this table a proportional relationship? Explain your answe

r.
x y
1 2.5
2 5
4 10
6 12
8 20
Mathematics
1 answer:
Mumz [18]3 years ago
4 0

Answer:

No, a porportional relationship is not shown

Step-by-step explanation:

Up until 4(x) and 10(y), the relationship is porportional. Then, when x increases by 2, y also only increases by 2. Y would need to increase by 5.

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Solve 3x² + 4x = 2. (2 points)
uysha [10]

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are x_1 and x_2.

The famous quadratic formula for solving any second order equation is the following:

x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}

Where a is the coefficient of x^2, b is the coefficient of x, and c is the free term. In other words,

a = 3\\b=4\\c=-2

as the equation should be in the following form:

a x^2 + bx+c = 0

Therefore the possible answer should be the following,

\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}

by dividing the numerator and denominator by 2, we can deduce the following,

6 0
2 years ago
Hector is visiting a cousin who lives 350 miles away he has driven 90 miles how many more miles does it take to drive to reach h
bija089 [108]
260 more miles,since 350-90=260
8 0
3 years ago
R−5r−6s+8s−15 what is the answer for this equation
weeeeeb [17]

Step-by-step explanation:

r-5r-6s+8s-15

-4r+2s-15

= 2s-4r-15

4 0
2 years ago
What is the greatest common factor of 12 and 90?
dsp73
The answer is 6. Hopefully this helped!!
6 0
3 years ago
Find p(4) when p=.80
deff fn [24]

Answer:

3.2

Step-by-step explanation:

0.8(4) = 3.2

3 0
3 years ago
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