Answer:
x = -1.5 y = 4
Step-by-step explanation:
4x + 3y = 6
-4x + 2y = 14 Add both equations together
5y = 20 Divide both sides by 5
y = 4
Plug this into one of the original equations
4x + 3(4) = 6 Multiply
4x + 12 = 6
-12 - 12 Subtract 12 from both sides
4x = -6 Divide both sides by 4
x = -1.5
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Answer:
coz it is
Step-by-step explanation:
the angle is 57° , so y is 63 as 63-6 = 57
Answer: C 1*10^5
Step-by-step explanation:
There are 10^2 cm in a meter, and 10^3 meter in a kilometer, so there are 10^2 * 10^3 = 10^5 cm in a kilometer
Answer:
The value of the expression is 28.
Step-by-step explanation:
Given that m = -2, and n = 5:
= 
= | 4 - 7 | + 25
= | -3 | + 25
= 28
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Answer:
9.8 cm
Step-by-step explanation:
Volume of a sphere, V = 4/3 πr³
V = 500cm³
π = 3.14
500 = 4/3 * 3.14 * r³
500 * 3 = 4 * 3.14 * r³
1500 = 12.56r³
r³ = 1500 / 12.56
r³ = 119.42675
r = (119.42675)^1/3
r = 4.9245574
Diameter = 2r
Diameter = 2 * 4.9245574
Diameter = 9.849
= 9.8cm
