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Nina [5.8K]
3 years ago
5

A student in greece discovers a pottery bowl that contains 48 of its original amount of c-14

Mathematics
2 answers:
tatiyna3 years ago
4 0
O you know that N/N0 = .48 and k=.00001 (and e=2.718) Your equation becomes: .48 = 2.718*(.00001*t) NOTE: you probably mean<span>.48=(2.718<span>)<span>.00001t</span></span></span>
Harman [31]3 years ago
4 0

i have all the same questions like this and one has yet to be answered



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There are 800 members in an astronomy club, and 320 of them are females. What percent of the members are males.
Liula [17]
ANSWER: 60% of the members are males

How?
-800 total
-320 females
800 - 320 = 480
480/800 = 0.6

Hope this Helps!
8 0
3 years ago
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In the figure, line L1 is parallel to line L2. If the measure of ∠4 = 144°, what is the measure of ∠6 and why? A. 144°, vertical
Brrunno [24]

Answer:the answer is B

Step-by-step explanation:

7 0
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Given the position of the particle, what the position(s) of the particle when it’s at rest
choli [55]

The position function of a particle is given by:

X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t

The velocity function is the derivative of the position:

\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}

The particle will be at rest when the velocity is 0, thus we solve the equation:

2t^2-9t-18=0

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

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

Substituting:

\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}

We have two possible answers:

\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

undefined

6 0
1 year ago
-3+x=4 solve this question
user100 [1]
Just add 3 to both sides
x = 7
4 0
3 years ago
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How old was Lisa x years ago if she is now 13? Which expression represents this?
gogolik [260]

Answer:13-x= y

Step-by-step explanation:

6 0
3 years ago
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