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3 years ago

11

What shape always contain perpendicular lines

2 answers:

Bumek [7]3 years ago

6 0

All right angle triangles have perpendicular lines

Vesna [10]3 years ago

3 0

Rectangles<span> have both perpendicular and parallel sides </span>

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226Ra has a half-life of 1599 years. How much is left after 1000 years if the initial amount was 10 g?

Ray Of Light [21]

$\bf \textit{Amount for Exponential Decay using Half-Life}\\\\
A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &10\\
t=\textit{elapsed time}\to &1000\\
h=\textit{half-life}\to &1599
\end{cases}
\\\\\\
A=10\left( \frac{1}{2} \right)^{\frac{1000}{1599}}$

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3 years ago

The given figure is a cylinder. The radius of

lesantik [10]

Answer:

11403.98133

Step-by-step explanation:

V = πr^2h = π·11^2·30 ≈ 11403.98133

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2 years ago

To rent a certain meeting room, a college charges a reservation fee of $39 and an additional fee of $5.30 per hour. The math clu

inessss [21]

Answer:

the most time they can spend is 8 hours

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2 years ago

*27. Jane has -$30 in her bank account, her electric company charges her her monthly bill of

Lorico [155]

Answer:

-$173

Step-by-step explanation:

$-30-128=-158 \\ \\ -158-15=-173$

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2 years ago

Mi is about to roll a six-sided number cube. What is the experimental probability that she will roll an even number based on her

Kryger [21]

Answer: The experimental probability that she will roll an even number= $\frac{1}{2}$

Step-by-step explanation:

We know that the probability for any event is given by6;-

$\text{Probability}=\frac{\text{Favorable outcomes}}{\text{Total outcomes}}$

In a dice, the total even numbers (2,4,6)= 3

Therefore, the probability that she will roll an even number will be given by:-

$\text{Probability}=\frac{\text{3}}{\text{6}}=\frac{1}{2}$

Hence, The experimental probability that she will roll an even number= $\frac{1}{2}$

6 0

3 years ago