Answer/Step-by-step explanation:
Area of trapezium = ½*(AD + BC)*AB
Area = 42 cm²
AD = (x + 8) cm
BC = (x + 5) cm
AB = x cm
Plug in the values into the equation
42 = ½((x + 8) + (x + 5))*x
42 = ½((x + 8 + x + 5)*x
42 = ½(2x + 13)*x
Multiply both sides by 2
42*2 = (2x + 13)*x
84 = 2x² + 13x
2x² + 13x = 84
Subtract both sides by 84
2x² + 13x - 84 = 0
The weight Kristen can lift is 1.3 times more than Jane's
<h3>How to determine the number of times?</h3>
The given paramater can be represented using the following equation
Kristen = 133% * Jane
Express the percentage as decimal
Kristen = 1.33 * Jane
Hence, the weight Kristen can lift is 1.3 times more than Jane's
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Answer:
14x+19x+8-8
=33x
because 8-8 is 0 always so the answer is 33X
Answer:
6.70m/s
Step-by-step explanation:
Speed = distance/time
Given the winner covered a distance of 26m in time of 3.88 seconds
Therefore
Speed = 26/3.88
= 6.70m/s
Answer:
Option (C)
Step-by-step explanation:
Cost of ordering the number of shirts is represented by the function,
f(x) = 12.75x + 3.5
where x = number of players in the bowling team
Since number of players a bowling team can have,
6 ≤ x ≤ 10
Therefore, domain of the function: 6 ≤ x ≤ 10
For x = 6,
f(6) = 12.75(6) + 3.5
= 80
For x = 7,
f(7) = 12.75(7) + 3.5
= 92.75
For x = 8,
f(8) = 12.75(8) + 3.5
= 105.5
For x = 9,
f(9) = 12.75(9) + 3.5
= 118.25
For x = 10,
f(10) = 12.75(10) + 3.5
= 127.5 + 3.5
= 131
Therefore, for the given domain range of the function will be,
Range : {80, 92.75, 105.5, 118.25, 131}
Option (C) will be the answer.
