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3 years ago

Solve: 6x - 2 = x + 13

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

7 0

Answer:

x = 3

i think this is the answer.. iam not sure

Gnom [1K]3 years ago

4 0

Answer:

x=3

Step-by-step explanation:

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What is the radius of the circle?

Whitepunk [10]

Answer:

7 units

Step-by-step explanation:

Hello!

The radius of a circle is the distance from the center of the circle to it's outer edge.

The radius of this circle is 7 units, as the distance from the center to the outer edge is 7.

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1 year ago

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The radius of a circle is 3 feet. What is the circle's area?

seraphim [82]

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3 years ago

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What is the equivalent sum to 2556 over 5000 ???? Idk if u get it

scoray [572]

If over you mean division then it would be 2556 divided by 5000 and that would equal 0.5112 and if you meant it to be addition because sum means the answer of an addition problem then it would be 7556 because of 2556 plus 5000, but i dont know if that is what you meant by your question. if you explain the lesson to me that you are learning, then i might be of more help to you in solving your problem.

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3 years ago

How do i solve this exponential equation<br>

Novay_Z [31]

Answer:

x = 0 or 1/2

Step-by-step explanation:

Solving an exponential equation of this nature with different bases and coefficients is always a bit of an ad hoc affair. Here, we can divide by the right side expression and make a substitution that turns it into a quadratic.

$3\cdot16^x+2\cdot81^x=5\cdot36^x\\\\0.6\left(\dfrac{4}{9}\right)^x+0.4\left(\dfrac{9}{4}\right)^x=1\\\\\textsf{Let $z=\left(\dfrac{4}{9}\right)^x$}\\\\0.6z+\dfrac{0.4}{z}=1\qquad\text{after substitution}\\\\3z^2-5z +2 = 0\qquad\text{multiply by $5z$ and put in standard form}\\\\(3z-2)(z-1)=0\qquad\text{factor}\\\\z=\dfrac{2}{3}\quad\text{or}\quad z=1\\\\x=\dfrac{\log(z)}{\log(4/9)}=\boxed{\dfrac{1}{2}\quad\text{or}\quad 0}$

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<em>Additional comment</em>

A graphing calculator often solves these very nicely, especially when the equation is put into the form f(x) = 0.

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2 years ago

What is the slope of the line that passes through the points (-2, 2), and (-4, -2)?

love history [14]

The slope would be b.2

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4 years ago