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geniusboy [140]
3 years ago
8

What is the distance between (−11,−20) and (−11,5) ?

Mathematics
1 answer:
swat323 years ago
7 0

Answer:

the answer is option D. 25 units. I hope that you'd understand

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Working together, Candice and Ximena painted a fence in 8 hours. Last year, Ximena painted the fence by herself. The year before
makkiz [27]

Answer: Time taken by Ximena to paint the fence alone  = 24 hours

Time taken by Candice to paint the fence alone = 12 hours

Step-by-step explanation:

Let x= Time taken by Ximena to paint the fence alone .

Time taken by Candice to paint the fence alone = x-12

As per given , we have

\dfrac{1}{x}+\dfrac{1}{x-12}=\dfrac{1}{8}\\\\\Rightarrow\ \dfrac{x-12+x}{x(x-12)}=\dfrac{1}{8}\\\\\Rightarrow\ 8(2x-12)=x^2-12x\\\\\Rightarrow\ 16x-96=x^2-12x\\\\\Rightarrow\ x^2-12x-16x+96=0\\\\\Rightarrow\ x^2-28x+96=0\\\\\Rightarrow\ x^2-4x-24x+96=0\\\\\Rightarrow\ x(x-4)-24(x-4)=0\\\\\Rightarrow\ (x-4)(x-24)=0\\\\\Rightarrow x=4, 24

if x= 4

Time taken by Ximena = 4 hours

Time taken by Candice = 4-12 hours =-8 hours which is not possible. (time cannot be negative)

Therefore, x= 24

Such that

Time taken by Ximena to paint the fence alone  = 24 hours

Time taken by Candice to paint the fence alone = 24-12=12 hours

3 0
3 years ago
PLEASE HELP
Stels [109]

Answer:

step three is wrong

Step-by-step explanation:

just did it

7 0
3 years ago
In the diagram below AB is parallel to CD what is the value of y?
Ilya [14]
Y° = y₁° (opposite or Vertical angles), but y₁ = 45° corresponding angles,


then y = 45°
5 0
3 years ago
Read 2 more answers
Finding area of circle with radius , giving brainliest :)) pls help asap
Schach [20]

Answer:

number 2 is the answer or 4*pi inches² or 12.6

Step-by-step explanation:

6 0
3 years ago
-6h - 13 - (-21) - 4h
bagirrra123 [75]

Answer:

-10h+8

Step-by-step explanation:

First, let's open the brackets:

-6h-13+21-4h (two -'s make a +)

This is equal to -10h + 8

8 0
3 years ago
Read 2 more answers
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