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Rina8888 [55]
2 years ago
11

Please help i will give brainliest

Mathematics
2 answers:
Ket [755]2 years ago
6 0

Answer:

13

Step-by-step explanation:

stellarik [79]2 years ago
6 0

Answer: x=1

Step-by-step explanation:

Like x^2-4x+3=0 or sin(x)=1.

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Solve quadratic formulax^2-4x+3=0
bekas [8.4K]

The general formula for a equation of the form:

ax^2+bx+c=0

is:

x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

In this case we notice that a=1, b=-4 and c=3. Plugging this values in the general formula we get:

\begin{gathered} x=\frac{-(-4)\pm\sqrt[]{(-4)^2-4(1)(3)}}{2(1)} \\ =\frac{4\pm\sqrt[]{16-12}}{2} \\ =\frac{4\pm\sqrt[]{4}}{2} \\ =\frac{4\pm2}{2} \end{gathered}

then:

x_1=\frac{4+2}{2}=\frac{6}{2}=3

and

x_2=\frac{4-2}{2}=\frac{2}{2}=1

Therefore, x=3 or x=1.

8 0
9 months ago
Eleven plus forty-one is divided by a number. If the result is 13, what's the number?
sergij07 [2.7K]

Answer:

4

Step-by-step explanation:

Let the number be x.

(11+41)/x = 13

52/x = 13

13x = 52

x = 52/13

x = 4

4 0
3 years ago
What's the difference between radius and diameter?
Andreas93 [3]
Diameter is from one side of the circle to the other through the middle
and the radius the from the middle to the edge of the circle
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