5. Simply the following b) 1078) + (-11)
2 answers:
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Answer:
3 + 4
Step-by-step explanation:
If u = < x₁, y₁ > and v = <x₂ , y₂ > , then
u • v = x₁x₂ + y₁y₂
Given
u = < , - 1 > and v = < 3, - 4 >, then
u • v = 3 + (- 1)(- 4) = 3
+ 4
Answer:
This means that the family must travel for at least 4 days.
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Step-by-step explanation:
Given
Required
Determine and solve the inequality
The number of days is represented with D
So:
On any D number of days, the family would have covered a distance of 350 * D miles
If the total distance is at least 1400, then the inequality is:
[The term "At least" is used to represent <em>greater than or equal to</em>]
Divide through by 350
<em>This means that the family must travel for at least 4 days.</em>