Total Cost = 55+0.35x
X represents the amount of minutes you spend talking on the phone.
Answer: √51
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a^2 + b^2 = c^2
a^2 + 7^2 = 10^2
a^2 + 49 = 100
a^2 = 51
√(a^2) = √51
a = √51
Answer:
12
Step-by-step explanation:
Givens
Harpreet = x + 3
Sukhpreet = x
Komalpreet = 2*(x + 3)
Average Age = 15
Equation
[(x + 3) + x + 2*(x + 3) ] / 3 = 15 Multiply both sides by 3
Solution
3 [(x + 3) + x + 2*(x + 3) ] / 3 = 15 * 3 Combine
[(x + 3) + x + 2*(x + 3) ] = 45 Remove the brackets
x + 3 + x + 2x + 6 = 45 Combine like terms
4x + 9 = 45 Subtract 9 from both sides
4x + 9 - 9 = 45 - 9 Combine
4x = 36 Divide by 4
4x/4 = 36/4
x = 9
Answer
Harpreet is x+ 3 = 9 + 3 = 12
Answer:
39.
Step-by-step explanation:
We subtract f(1) which is the value of f(x) when x = 1 from f(3), then we divide by 3 - 1.
It is [(f3) - f(1]) / (3 - 1), so
Average rate of change = (3(3)^3 + 1) - (3(1)^3 + 1) / (3 - 1)
= (82 - 4) / 2
= 78 / 2
= 39.
