which means the graph is on quadrate 2 or 3.
Straight Line :
A straight line is an infinite-length line that does not have any curves on it. A straight line can be formed between two points also but both ends extend to infinity. A straight line is a figure formed when two points A (x1, y1) and B (x2, y2) are connected with the shortest distance between them, and the line ends are extended to infinity.
In the image shown below, a straight line between two points A and B is shown. A straight line AB is represented by: Vector AB
The lines are drawn in a slanting position or form some angle other than 0o, 90o, 180o, 270o, 360o with horizontal or vertical lines are called oblique or slanting lines.
y= -(x - 3)² + 2.
y= - (x2+9-6x)+2
y= -x2-9+6x+2
y= -x2-7+6x
y= -x2+6x-7
-y = x2+7x-x-7
-y= x(x+7)-1(x+7)
-y= (x+7)(x-1)
which means the graph is on quadrate 2 or 3.
straight line graph of y = -(x - 3)² + 2.4
More details : brainly.com/question/20492082
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Answer:
54!
Step-by-step explanation:
300-30
=270×.20
=54
Answer:
0.75<p<0.85
Yes,the proportion of girls is significantly different from 0.5.
Step-by-step explanation:
We calculate the proportion of girls:
#We then calculate the confidence interval as follows:
![CI=p\pm z(ME)\\\\=p\pm z_{0.005}\sqrt{\frac{p(1-p)}{n}}\\\\=0.8+2.576\times \sqrt{\frac{0.8\times 0.2}{425}}\\\\=0.8\pm0.05\\\\=[0.75,0.85]](https://tex.z-dn.net/?f=CI%3Dp%5Cpm%20z%28ME%29%5C%5C%5C%5C%3Dp%5Cpm%20z_%7B0.005%7D%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%7D%5C%5C%5C%5C%3D0.8%2B2.576%5Ctimes%20%5Csqrt%7B%5Cfrac%7B0.8%5Ctimes%200.2%7D%7B425%7D%7D%5C%5C%5C%5C%3D0.8%5Cpm0.05%5C%5C%5C%5C%3D%5B0.75%2C0.85%5D)
Hence, the proportion's confidence interval at 99% is 0.75<p<0.85
#We then state our hypothesis to validate the claim:
Since the confidence interval does not contain 0.5, which is the the 50% chance of having a girl, then it can be concluded the proportion of girls is significantly different from 0.5.
if the speed "s" of the current in a certain whirlpool is modeled by s = 300/d, where "d" is the distences from the center of the whirlpool. the true statement is: as you move closer to the center of the whirlpool, the speed of the current approaches infinity.hope this help
