Note that going from R to Q means we go down 3 and to the right 2. The slope here is -3/2. You can use the slope formula to get the same result. The slope formula is:
m = (y2-y1)/(x2-x1)
Using the visual trick or the slope formula, we see that the slope of QS is 2/3. We go up 2 and over to the right 3 to go from S to Q.
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In summary so far:
- slope of RQ = -3/2
- slope of QS = 2/3
If we multiply the slopes together, we end up with -1
(-3/2)(2/3) = (-3*2)/(2*3) = -6/6 = -1
Any time two slopes multiply to -1, this means the lines are perpendicular. Because we got -1 as a result, we have shown that segment RQ is perpendicular to segment QS. Angle RQS is 90 degrees.
Step-by-step explanation:
5160 In two trucks they have a 50 specimen , 10 , 20
Answer:
Step-by-step explanation:
Given information:
- Total number of pupils = 20
- 3 pupils play the flute
- 6 pupils play the piano only
- 6 play both instruments
We can assume that 3 pupils play the flute <u>only</u> as we have also been told that 6 pupils play both instruments.
To calculate the probability that a randomly chosen pupil plays neither instrument, first determine how many pupils do not play an instrument by subtracting the number of pupils who do play an instrument from the total number of pupils:
⇒ total number of pupils - pupils who play instruments
⇒ 20 - (3 + 6 + 6)
⇒ 20 - 15
⇒ 5
Therefore, 5 pupils do not play the piano and/or flute.
To calculate probability:
Therefore:
Hey there,
Your question states: <span>What is the value of the expression |-7| + |-4|
Sense they both are absolute values, they are pretended to be as normal numbers. By simplifying this, your correct answer would be 11.
Hope this helps.
~Jurgen</span>
It wont open it up, so no one can really help
