Which repres
algebraically
the solution(s) of the system of equations, y=x2 - 4x - 21 and y = -5x - 227 determine the solution set
(-1, -17)
(1.-27)
(-1, -17) and (1, -27)
no solutions

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step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

c is the answer

step-by-step explanation:

0.32

step-by-step explanation:

2.24/7