Answer:
C- 15 cars.
Step-by-step explanation:
To do this, you will need to set up an equation as follows:
8x+15=6x+45
Then you will subtract 6x from each side. Then you will have this:
2x+15=45
Then you will subtract 15 from each side, and then you will have:
2x=30
Then you will divide each side by 2 and you will get 15. Hope this helped!
Answer:
Length of AC = <u>12units</u>.
Step-by-step explanation:
- Hypotenuse of the triangle =
- Height of the triangle =
Base of the triangle.
As we know that,
Pythagoras Theorem:
So, In triangle ABD by putting the value of hypotenuse and height in this formula we get,
Since, it is given that BD is the perpendicular bisector of AC so length of AC will be doubled.
Therefore, length of AC of the given triangle = 
Hi!
The correct answer is B, 1.997 • 10^2
This can be found by simply moving the decimal
place over x times (x represents the exponent). For example, if it were 1.12 • 10^2, you’d move your decimal place over 2 places to the right because it is positive (move left if negative).
.
Simplifying the radical, we have <u />
, so our answer is
.
Answer:
<u>A. p(hat) = .139</u>
We divide our sample population by the amount who tested positive. 14851/107109 = .139.
<u>B. 1.62 million</u>
We just multiply the p times the population. 11.69 M * .139 = 1.62 M
<u>C. No</u>
It depends upon the sample method. From what I can tell, I assume all conditions are met and it was not biased.
If it wasn't random, that is a problem, but we aren't given this information.
We can test if it's small enough. It can't be larger than 10% of the population. 107109 * 10 < 11.69 million, so it's small enough.
We can also test if it's large enough. np and nq must be greater than 10. 107100 * .139 > 10, 107100 * .861 > 10.
