Answer:
Step-by-step explanation:
1: find the perpendicular gradient - this is the negative reciprocal of the original gradient:
2: Substitute in the coordinate to find the value of c:
3: Put it all together:
Heyy I really need help. I don't understand any of this.
1 answer:
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Answer:
1/15
Step-by-step explanation:
The first thing to do is to change both denominators so that they're the same. In this case, that would be 15.
Then, whatever you do to the denominator, you must also do to the numerator.
+ x =
X = 1/15
Answer:
Option (3)
Step-by-step explanation:
From the picture attached,
Bar graph sketched shows the grades earned by the students in an exam.
Number of students who achieved the grade A = 17
Number of students who achieved grade B = 14
Number of students with grade C = 5
Number of students with grade D = 9
Total students who took the exam = 17 + 14 + 5 + 9 = 45
Option (1)
" of the students earned a C"
Fraction of students who earned C =
=
=
Therefore, this option is incorrect.
Option (2)
"3% more students earned an A then B"
Percentage of students who earned A =
=
= 37.78%
Percentage of students who earned B =
=
= 31.11%
Difference in percentage = 37.78 - 31.11
= 6.67%
Therefore, this option is not correct.
Option (3)
"20% of the students earned a D"
Percentage of students who earned D =
=
= 20%
Option (3) is the correct option.
Option (4)
" of the class earned a B"
Fraction of class who earned B =
=
Therefore, Option (4) is not correct.