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3 years ago

Find the slope of the line graphed

Mathematics

2 answers:

erastova [34]3 years ago

7 0

Answer:

the slop is 1.5

Step-by-step explanation:

Marrrta [24]3 years ago

3 0

Answer:

Slope = -1.5

Step-by-step explanation:

The two points are: (1, 1) and (3, -2)

Slope = (-2 - 1) / (3 - 1)

Slope = -1.5

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If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2<br> Express answer as a common fraction.<br> Thanks!!

timama [110]

$x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0$

By the quadratic formula,

$x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2$

Then

$(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2$

$\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}$

Multiply numerator and denominator by the denominator's conjugate:

$\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15$

3 0

3 years ago

Please help! I’ll give brainliest!:)

bearhunter [10]

Answer:

1467

Step-by-step explanation:

i know this because taking a negative number and a positive is like adding and then you subtract 144 and you get 1467

8 0

2 years ago

Can someone help? I don’t really understand what reflect over line y=x means :)

soldier1979 [14.2K]

Answer: (-3,7)

Step-by-step explanation:

Flip the signs

6 0

3 years ago

Read 2 more answers

How do I find the correct Domain.

Damm [24]

Answer:

The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.

Step-by-step explanation:

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

hope this helps a little

5 0

3 years ago

1 inch= 2.54 cm

Digiron [165]

Answer:

152.4 cm is the answer

Step-by-step explanation:

4 0

4 years ago