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3 years ago

How do you solve this equation

Mathematics

2 answers:

dsp733 years ago

5 0

First, you must get rid of the fractions. You can do that by multiplying that 15. Then, you get:
45x-12=-5x
Then combine the like terms

50x=12

x=12/50=6/25

uysha [10]3 years ago

5 0

Go to this website called cymath that then enter your equation or equations and it will help u GO NOWW!!!! :) :) :) ;) ;) =-)

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Find the arc length of a partial circle

marusya05 [52]

Answer:

12.5664 units (rounded off to four decimal values)

Step-by-step explanation:

Arc length = 2 × π × r × $\frac{central-angle}{360}$

For our partial circle;

The radius (r) = 8 units

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Arc length = 2 × π × 8 × $\frac{90}{360}$ = 12.5663706144 units

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Read 2 more answers

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likoan [24]

Answer:

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Step-by-step explanation:

The highest common factor of 54, 18 and 36 is 18

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4 years ago

Giving brainliest 10 points if you answer correctly !!!!

inn [45]

Answer:

(2,4) I hope this helps :))

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3 years ago

What are the exact solutions of x2 − 5x − 1 = 0 using x equals negative b plus or minus the square root of the quantity b square

geniusboy [140]

Answer:

$x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

Step-by-step explanation:

So the question here is asking you to use the quadratic formula which is expressed as: $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

A quadratic can generally be expressed as: $y=ax^2+bx+c$

So using the equation you gave: $0=x^2-5x-1$

We can identify the following values: a=1, b=-5, c=-1

Btw the equation explicitly write "1" as the coefficient of x, but since it's not provided it's implied that it's 1.

So plugging in the known values, we get the following equation:

$x=\frac{5\pm\sqrt{(-5)^2-4(1)(-1)}}{2(1)}\\\\x=\frac{5\pm\sqrt{25+4}}{2}\\\\x=\frac{5\pm\sqrt{29}}{2}\\\\x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

The last step just consists of taking the + and - solution, and since it asks for exact solutions you leave the 29 under the radical, and you don't approximate. There is no further simplification that can be done here.

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2 years ago

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melamori03 [73]

X=any number

x is( greater than sign) (and then a line at the bottom of the greater or less than sign) x

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4 years ago