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7nadin3 [17]
3 years ago
15

PLEASE HELP!!!! ILL GIVE YOU 10 POINTS IF YOUR ANSWER IS CORRECT!!!!

Mathematics
2 answers:
lesya692 [45]3 years ago
8 0
Y=X-4. -20 = x -4. -20+4 =X. -16 = X
Cerrena [4.2K]3 years ago
7 0

Answer:

x=-16

Step-by-step explanation:

y=-20

y=x-4

-20=x-4

x=-16

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The length of a rectangular field is 6 metres longer than its width. If the area of the field is 72 square metres, What are the
Mnenie [13.5K]

Answer:

The length is 12metres, the width is 6metres

Step-by-step explanation:

Suppose the width is x, the length is x+6

The square is 72. The square of rectangular field is equal to product of length and width.

so x(x+6)=72

x^2+6x-72=0

a=1 b=6 c=-72

D= b^2-4ac= 6*6+288= 36+288= 324

sqrtD= 18

x1= (-b-sqrtD)/2a=(-6-18)/2= -12 (it is negative, but width is only positive. So this root doesn't match)

x2=(-b+sqrtD)/2a= (-6+18)/2= 12/2=6 - the width

The length is 6+6=12

5 0
3 years ago
What equation relates the distance, y, and the time, x? ​
seraphim [82]

9514 1404 393

Answer:

  y = 15x

Step-by-step explanation:

You can identify the slope (constant of proportionality) by finding y when x = 1. That value is 15. It goes into the equation as the coefficient of x.

  y = 15x

5 0
3 years ago
Read 2 more answers
PLEASE HELP what's the value of x<br>a.23<br>b.30<br>c.46<br>d.62
Zinaida [17]
Since they are vertical angles, they are equal.
5x - 53 = 3x - 7
2x = 46
x = 23
A
6 0
3 years ago
Does Anybody Know Anything About Angle Bisectors?
iragen [17]

Answer:

I know a bit about Angle Bisectors. (the line that splits an angle into 2 equal angles)

6 0
3 years ago
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A line passes through (0, -1.8) and has a slope of 7. Write an
horsena [70]

Answer:

equation of a line= y-y¹=m(x-x¹)

y--1.8=7(x-0)

y+1.8=7x-0

y+1.8=7x

y=7x+1.8

3 0
3 years ago
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