3 years ago

Solve the system algebraically.y=3-1/2x3x+4y=1what is the value of x?

Mathematics

1 answer:

Gre4nikov [31]3 years ago

8 0

Use the expression for y in the second equation.
.. 3x +4(3 -(1/2)x) = 1
.. 3x +12 -2x = 1
.. x +12 = 1
.. x = -11

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The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye

Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

$\frac{y}{a} = e^{-0.00012\cdot t}$ (1)

Where:

$y$ - Current amount of carbon-14, no unit.

$a$ - Initial amount of carbon-14, no unit.

$t$ - Time, in years.

If we know that $\frac{y}{a} = 0.25$ , then the approximate age of the bone is:

$t = -8333.333\cdot \ln \frac{y}{a}$

$t\approx 11552.453\,yr$

The approximate age of the bone is approximately 11552 years.

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3 years ago

A vertex a is at (-1, -2)

Flura [38]

Answer:

A'(-4,4)

B'(-2,11)

Step-by-step explanation:

6 unit up and 3 unit left

A (-1,-2) : 6 unit up → (-1,4) → 3 unit left → (-4,4)

A'(-4,4)

B (1,5) : 6 unit up → (1,11) → 3 unit left → (-2,11)

B'(-2,11)

8 0

3 years ago

Whitch is the simplified form of the expression 5(14-2)^2 over 2

Anika [276]

[5(14-2)^2]/2=
(5•12^2)/2=
5•144/2=
5•72=
720/2= 360

7 0

3 years ago

a triangle has two sides that have lengths of 8 cm and 14 cm.Which length below would not represent the length of the third side

anyanavicka [17]

Answer:

hmmm..... let me think. A

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A company packages their product in two sizes of cylinders each dimension of the largest cylinder is twice the size of the corre

Katarina [22]

The correct answer to your question is:
D. The volume of the cylinder is 8 times the volume of the smaller cylinder.

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3 years ago