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77julia77 [94]
3 years ago
12

The temperature of a city changed by -20°C over a four week. If the temperature changed by the same amount each week write an ex

pression to show the average change in the temperature of the week simplify the expression and explain using words what your answer means
Mathematics
1 answer:
andre [41]3 years ago
8 0

Answer:

A)  T=\frac{-20}{4}

B) T = -5 °C

Step-by-step explanation:

A) Let T be the change in temperature of the week. T is determined as the total temperature change (-20°C) divided by the number of weeks that have passed (4 weeks). The expression is:

T=\frac{-20}{4}

B) In order to simplify the expression, simply perform the division.

T=\frac{-20}{4}\\T=-5^oC

This means that the temperature has dropped by 5 degrees each week.

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Answer:

The area of this plate is 36.31\ \text{inches}^2.

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

C=2\pi r

r is radius of circular shape

r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}

Area of this plate is given by :

A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2

So, the area of this plate is 36.31\ \text{inches}^2.

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3 years ago
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2 years ago
7 to the 6th power = n to the 8th power what is n
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3 years ago
What is the slope of (15,9), (-14,-9)
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The formula for slope:

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