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Negative number addition and subtraction: word problems
A dolphin is swimming with her friend. The dolphin jumps to a height of 4.5 meters above the surface of the
water as her friend swims 9.8 meters directly below her.
What is the position of the dolphin's friend relative to the surface of the water?
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answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

there is no points to select.

step-by-step explanation:

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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