D. Robertas boat was farther from the dock at the beginning, and it traveled more quickly
2 answers:
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Answer:
The answer to your question is given in the attached photo.
Step-by-step explanation:
To determine the answer to the question,
First, we shall determine the value 3A.
This is obtained by multiplying matrix A by 3 as shown in the attached photo.
Next, we shall carry out the operation 3A – B as shown in the attached photo.
Answer:
1.39
Step-by-step explanation:
According to the problem, calculation of the given data are as follows,
Given equation = 0=2x2+3x-8
Here, we use general formula of quadratic equation, then
By taking the value by given equation,
a = 2, b = 3, c= -8
by putting the value in equation , we get
x = [- 3 ± √3^2 - 4(2 × -8)] ÷ 2×2
= [- 3 ± √73] ÷ 4
= [- 3 ± 8.544] ÷ 4
So, for positive solution, we get
x = (-3 + 8.544) ÷ 4
x = 1.386 or 1.39