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Anna11 [10]
3 years ago
7

PLEASE HELP IF YOU CAN, THE QUESTION IS IN THE PICTURE

Mathematics
1 answer:
Rama09 [41]3 years ago
8 0

Answer: a

Step-by-step explanation:

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the length of a soccer pitch is 20 m less than twice its width. the area of the pitch is 6000m^2. find its dimensions.
Setler79 [48]
X=width of a coccer pitch
2x-20=length of a soccer pitch
Area (rectangule)=length x width
We suggest this equation:
x(2x-20)=6000
2x²-20x=6000
2x²-20x-6000=0
x²-10x-3000=0
We solve this quadratic equation:

x=[10⁺₋√(100-4*1*-3000)]/2=[10⁺₋√(100+12000)]/2=
=(10⁺₋110)/2
we have two solutions:
x₁=(10-110)/2=-50, invalid solution.
x₂=(10+110)/2=60

x=60
2x-20=2(60)-20=120-20=100

Solution: the length is 100 m, and the width is 60 m.

To check:
Area=100 m*60 m=6000 m²
The twice of width is =2(60 m)=120 m,
20 m less than twice its width is: 120 m-20 m=100 m=the length.


8 0
3 years ago
Can someone answer this
MA_775_DIABLO [31]

Answer:

10 inches

Step-by-step explanation:

18*2=36

56-36=20

20/2= 10

The missing side length is 10 inches.

Hope this helps! Have a nice day :)

5 0
3 years ago
Read 2 more answers
PLS HELP!!! ONLY ANSWER IF U KNOW IT!!
atroni [7]

Answer:

hello,

the answer is option c (0.84)

and if you wabt to find in angle then the answer is 33.04°.

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
What is the next number in the sequence? 7….10….16….28…?
alexira [117]
I think that 52 is next number
5 0
3 years ago
Read 2 more answers
A = πab/4 solve for b
Studentka2010 [4]

Answer:

4A/ (πa)  = b

Step-by-step explanation:

A = πab/4

Multiply each side by 4

4A = 4πab/4

4A = πab

Divide each side by πa

4A/(πa)  = πab/ πa

4A/ (πa)  = b

8 0
3 years ago
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