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Nesterboy [21]
3 years ago
10

6.9 + (-5)+ 4.1=?

Mathematics
2 answers:
Keith_Richards [23]3 years ago
8 0
6.9+(-5)+4.1~ When there is a in front of an expression in parentheses, the expression remains the same - 6.9-5+4.1 then Calculate the sum or difference then you get 6. ANSWER=6
soldier1979 [14.2K]3 years ago
5 0

Answer:

6

Step-by-step explanation:

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Which function is the inverse of f (x) = 2x + 8?
tiny-mole [99]

Answer:

f-1(x) = (x-8)/2

Step-by-step explanation:

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The speeds (in miles per hour) of motorists ticketed during one day on a five-mile stretch of highway are
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Step-by-step explanation:

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3 years ago
Which describes the function on the graph below
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3 0
3 years ago
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The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr
malfutka [58]

For this case we have that by definition, the area of a triangle is given by:

A = \frac {b * h} {2}

Where:

b: It is the base of the triangle

h: It is the height of the triangle

According to the statement data we have:

b = 6 + 2h

Substituting we have:

88 = \frac {(6 + 2h) * h} {2}\\176 = 6h + 2h ^ 2\\2h ^ 2 + 6h-176 = 0

We divide between 2 on both sides:

h ^ 2 + 3h-88 = 0

We factor by looking for two numbers that, when multiplied, are obtained -88 and when added together, +3 is obtained.

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We have two roots:

h = -11\\h = 8

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Answer:

The base of the triangle is 22 units.

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