In fire fighting a good water stream can be modeled by y equals -0.003x squared +0.62x +3 where x is the waters horizontal distance traveled in feet and why is the corresponding height in feet. if a fire fighter is aiming a good water stream out of buildings window 25 feet above the ground what to distance kind a firefighter stand from the building

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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answer for #1 is c

answer for #2 is d

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step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

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do you confirm there was a mistake in the question?

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

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step-by-step explanation: