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Ivahew [28]
3 years ago
14

a rectangle is 12 feet long and 5 feet wide. if the length of the rectangle is increased by 25% and the width is decreased by 20

% what is the change in the area of the rectangle
Mathematics
1 answer:
Verizon [17]3 years ago
4 0

Answer:

60% decrease in area

Step-by-step explanation:

12 x5 == 60 sq feet (original area)

9 x 4 == 36 sq feet (new area)

36/60 = 6/10 = 60%

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Would really love some help, 20 points
Vilka [71]

Answer:

x=23.78 cm

Step-by-step explanation:

As this problem is involving the adjacent and hypotenuse sides, we will be using the cosine function

We can setup an equation as follows

cos(18)=\frac{x}{25}

We can now solve for x

x=25cos(18)\\\\x=23.776

This rounds to

x=23.78

3 0
3 years ago
Anyone know how to answer this
Papessa [141]

Answer:

21

Step-by-step explanation:

The average rate of change of function f(x) from x = a to x = b is

\dfrac{f(b) - f(a)}{b - a}

Here we have

a = -1

b = 2

f(a) = f(-1) = 1

f(b) = f(2) = 64

\dfrac{f(b) - f(a)}{b - a} =

= \dfrac{f(2) - f(-1)}{2 - (-1)} =

= \dfrac{64 - 1}{2 + 1}

= \dfrac{63}{3}

= 21

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2 years ago
It should take 5.22 minutes to clean a shower. You have 5 showers that need to be cleaned. How many minutes should it take for y
allochka39001 [22]
The answer is 26.1 Hope this helps
5 0
3 years ago
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Jose is asked to graph the equation y = −4x + 5 without a table, but he cannot remember how. Which explanation will help him gra
geniusboy [140]

Answer:

See explanation below.

Step-by-step explanation:

He has to remember that b is the y-intercept and in this case it is 5 so he can automatically graph that point. Next, he has to recall that the number before the x is the slope and in this case it is -4 so he can use this to graph the line correctly.

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Shkiper50 [21]

Answer:

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3 years ago
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