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taurus [48]
3 years ago
12

Line AB is drawn from A(0,10) to B(-7,-4). Find point C that partitions line AB in ratio 5:2

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0
C) (-5, 0)

Working;
Use the formula;
x coordinate=\frac{ k_{1}  x_{B}+ k_{2} x_{A}   }{ k_{1} + k_{2} }\frac{ k_{1} y_{B} + k_{2} y_{A}   }{ k_{1} + k_{2} }
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PLEASE HELP!!!!!! TIMED QUESTION!!!! FIRST CORRECT ANSWER WILL GET BRAINLIEST....PLEASE ANSWER NOW!!!!
Margarita [4]

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)

"\frac{1}{5} of the students earned a C"

Fraction of students who earned C = \frac{\text{Students who earned C}}{\text{Total students}}

                                                          = \frac{5}{45}

                                                          = \frac{1}{9}

Therefore, this option is incorrect.

Option (2)

"3% more students earned an A then B"

Percentage of students who earned A = \frac{\text{Students got A}}{\text{Total students who took the exam}}\times 100

                                                                = \frac{17}{45}\times 100

                                                                = 37.78%

Percentage of students who earned B = \frac{\text{Students got B}}{\text{Total students who took the exam}}\times 100

                                                                = \frac{14}{45}\times 100

                                                                = 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 = \frac{\text{Students got D}}{\text{Total students who took the exam}}\times 100

                                                                 = \frac{9}{45}\times 100

                                                                 = 20%

Option (3) is the correct option.

Option (4)

" \frac{1}{4} of the class earned a B"

Fraction of class who earned B = \frac{\text{Students got B}}{\text{Total students who took the exam}}

                                                    = \frac{14}{45}

Therefore, Option (4) is not correct.                                        

6 0
3 years ago
A use bike costs $75 a new one costs $300. how many times more expensive is a new bike compare with a use bime
Alisiya [41]

Answer:

jvjdebsjd bjiweibqewasje

Step-by-step expla

3 0
3 years ago
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Helpppppp!!!!!!!!!!and explain too
olga2289 [7]

Answer:

Relation

Explanation:

The definition of a relation is just a set of ordered pairs.

A function is a relation in which each domain element is paired with exactly one range element.  

It can't be a function because if it is a vertical line, then the x-value is the same for the whole line.

I hope that helps a bit

8 0
3 years ago
1. - 4 + (-8) =
lara [203]
1)4-8=-4
2)3+4-5=2
3) -13
4)8+12=20
5) -14
4 0
3 years ago
Read 2 more answers
Which expression is equivalent to x + y + x + y + 3(y + 5)? 2x + 5y + 5 2x + y + 30 2x + 5y + 15 2x + 3y + 10 NextReset
jolli1 [7]
<span>Which expression is equivalent to x + y + x + y + 3(y + 5)? 2x + 5y + 5 2x + y + 30 2x + 5y + 15 2x + 3y + 10 

</span>x + y + x + y + 3(y + 5)=  \\  \\ x+y+x+y+3y+15=   \boxed{ 2x+5y+15 }<span>
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7 0
3 years ago
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