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Studentka2010 [4]
3 years ago
15

Problem: What values of a and b make this statement false? |a-b|=|a|-|b|

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Answer:

All (a,b) that satisfy a.b < 0 will make that statement false

Step-by-step explanation:

It is only right when:

|a-b| = |a| - |b|

<=> ( |a-b| ) ^ 2 = ( |a| - |b| ) ^ 2

<=> a^2 - 2ab + b^2 = a^2 - 2.|ab| + b^2

<=> ab = |ab|

<=> ab ≥ 0

So, when ab < 0, it's wrong

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Step-by-step explanation:

From the question, we are informed that Jerome use 3 1/4 gallons of gasoline while driving from school to his baseball game.

Assuming that he originally had 7 gallons in his car, the amount of gasoline he have left will be:

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STatiana [176]

1x+5=10

1x-5=10

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3 years ago
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Ivahew [28]

Answer:

<em></em>Height = 173.8ft<em></em>

<em></em>

Step-by-step explanation:

Given

\theta = 40^o

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Let the height of the building be H. So:

\tan(\theta) = \frac{Opposite}{Adjacent}

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Make H the subject

H = 200 * \tan(40)

H = 167.82

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