False they are named according to shape and size
Answer:
A
Explanation:
You must know the basics of Trigonometry to solve this.
First, you must know that

lies in the second quadrant, so sin is negative.
Next, since
pi/4, is the reference angle of 3 pi/4, this means that we can set up a right triangle with pi/4 as an angle, we get


So the answer is A
I’m pretty sure is “his” which will be C
There are different kinds of experiment. The relationship between volume and temperature is that As temperature goes up, volume also goes up when pressure is held constant.
- As seen in the data, as the temperature often increases the volume in each gas therefore still increases slightly.
<h3>What is the relationship between volume and temperature?</h3>
Note that the volume of any gas or substance is said to directly proportional to its temperature.
Charles's law gave the theory that the volume of a given amount of gas is certainly proportional to its temperature using the kelvin scale when the pressure is known to be constant.
Learn more about temperature from
brainly.com/question/18130122
Answer= 4:9
HCF of 8 and 18 is 2
8/2 =4. 18/2=9