Since there are zero girls there are a number of options say 1:0 is an option,2:0 is an option here are the rest. 8:0 4:0 16:0. Hope this helped.
Answer:

Step-by-step explanation:
The scientific notation:

We have:

Answer:
Your answer is not there.... but my answer is... so, check it put...
Step-by-step explanation:
P is the principal amount, $400.00.
r is the interest rate, 7.5% per year, or in decimal form, 7.5/100=0.075.
t is the time involved, 6 month period(s) time periods.
To find the simple interest, we multiply 400 × 0.075 × 3 to get that:
The interest is: $90.00
Option B: 50 is the value of the constant.
Explanation:
From the graph, the coordinates are
,
,
and 
Where the x coordinates denotes the width and the y - coordinates denotes the height.
Also, given that 
We need to determine the value of the constant
<u>Value of the constant:</u>
The value of the constant can be determined using the formula,

Since, all the coordinates lie on the same line, then all the coordinates have the constant.
Substituting the coordinate
in the above formula, we get,


Therefore, the value of constant is 50.
Hence, Option B is the correct answer.
Answer:
a) D(t) = ![\[20*\sqrt{5} * t\]](https://tex.z-dn.net/?f=%5C%5B20%2A%5Csqrt%7B5%7D%20%2A%20t%5C%5D)
b) 178.885 miles
Step-by-step explanation:
Ship A travels north at the rate of 20 mph.
Ship B travels east at the rate of 40 mph.
After t hours, Ship A is at a distance of 20t miles from the origin.
Similarly, Ship B is at a distance of 40t miles from the origin.
(a) Distance D(t) = ![\[\sqrt{(20t)^{2}+(40t)^{2}}\]](https://tex.z-dn.net/?f=%5C%5B%5Csqrt%7B%2820t%29%5E%7B2%7D%2B%2840t%29%5E%7B2%7D%7D%5C%5D)
= ![\[\sqrt{400*t^{2}+1600 * (t)^{2}}\]](https://tex.z-dn.net/?f=%5C%5B%5Csqrt%7B400%2At%5E%7B2%7D%2B1600%20%2A%20%28t%29%5E%7B2%7D%7D%5C%5D)
= ![\[\sqrt{2000*t^{2}}\]](https://tex.z-dn.net/?f=%5C%5B%5Csqrt%7B2000%2At%5E%7B2%7D%7D%5C%5D)
= ![\[20*\sqrt{5} * t\]](https://tex.z-dn.net/?f=%5C%5B20%2A%5Csqrt%7B5%7D%20%2A%20t%5C%5D)
(b) Distance between the two ships when t = 4,
= ![\[20*\sqrt{5} * 4\]](https://tex.z-dn.net/?f=%5C%5B20%2A%5Csqrt%7B5%7D%20%2A%204%5C%5D)
=
miles
= 80 * 2.236
= 178.885 miles