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Mekhanik [1.2K]
3 years ago
13

Commutative property under integers and rational numbers with examples​

Mathematics
1 answer:
katovenus [111]3 years ago
3 0

Step-by-step explanation:

Commutative law under addition says- p + q = q + p. Commutative law under multiplication says p x q = q x p. Note- Rational numbers, integers and whole numbers are commutative under addition and multiplication. Rational numbers, integers and whole numbers are non commutative under subtraction and division.

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Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is
Fofino [41]

Answer:

Undefined

Step-by-step explanation:

Slope of CD

=  \frac{8 - ( - 7)}{4 - 4}  =  \frac{8 + 7}{0}  =  \infty \\

Hence, Slope of CD is undefined.

4 0
3 years ago
Find the area of the circle. Round to the nearest tenth.
Lerok [7]

Answer:

283.5

Step-by-step explanation:

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A $16,000 robot depreciates linearly to zero in 10 years. (a) find a formula for its value as a function of time, t, in years.
SVETLANKA909090 [29]

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0 represents initial time of the robot.

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Slope is the rate of change.

So, we need to find the slope of the two coordinates we wrote above.

We know, slope formula

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Plugging values in formula, we get

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Therefore, rate of depreciation is $1600 per year.

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f(x) = -1600x + 16000.

But the problem is asked to take the variable t for time.

Replacing x by t, we get

f(t) = -1600t + 16000.

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Vaselesa [24]

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