Mary bought 4 small cookies for 40 cents each and 2 large cookies for 90 cents each how much did she spend all together
1 answer:
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The value at point ( 1, 1 ) is 8.
<u>Explanation:</u>
Given
3y³ = 2x⁹ + 1
y³ = 2/3x⁹ + 1/3
y = ∛2/3 x⁹ + 1/3
We need to first find dy/dx which is the first derivative and then d²y/dx² which is the second derivative
Put the value of (1,1) : x = 1 and y = 1 in d²y/dx² equation
Therefore, the value is 8.
Answer:
225
Step-by-step explanation:
Using the basic components of summation ∑
∑n = n(n + 1) and ∑1 = n
Thus
∑ (2n - 1) ← for n = 1 to 15
= ∑2n - ∑1
= 2∑n - ∑1
= 2 ( n(n + 1)) - n
= n(n + 1) - n ← Evaluate for n = 15 ( the upper value )
= 15 × 16 - 15
= 240 - 15
= 225