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34kurt
3 years ago
12

Find area of shaded regions​

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
5 0

Answer:

1039.5 cm²

Step-by-step explanation:

Area (shaded) = 22/7 x 21 x 21 - 22/7 x 21/2 x 21/2

= 1386 - 346.5

= 1039.5 cm²

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Whats two-thirds of four-fifths of a dozen
leonid [27]

Answer:

  • 6.4

Step-by-step explanation:

  • 2/3*4/5*12 =
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6 0
3 years ago
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An architect plans to build an extension to​ Meiling's rectangular deck. Let x represent the​ increase, in​ meters, of her​ deck
elena-14-01-66 [18.8K]

Complete question is;

An architect plans to build an extension to meiling's rectangular deck. Let x represent the increase, in meters, of her deck's length. The expression 4(x+8) represents the area of the deck, where 4 is the width, in meters, and (x+8) represents the extended length, in meters. Use distributive property to write an expression that represents the total area of meilings new deck.

Answer:

4x + 32

Step-by-step explanation:

We are told that the expression 4(x+8) represents the area of the deck.

Also, that 4 is the width, in meters, and (x+8) represents the extended length, in meters.

Thus, area is;

A = 4(x+8)

Using distributive property simply means we will distribute the term outside the bracket to each term inside the bracket.

Thus;

A = (4 * x) + (4 × 8)

A = 4x + 32

8 0
3 years ago
What value of x makes the equation −2x−(−5−4x)=−5(2x−7) true?
Anestetic [448]

Answer:

-2x - (-5 - 4x) = -5(2x - 7)

-2x + 5 - 4x = -5 * 2x - 5 * (-7)  

-6x + 5 = -10x - 35

-6x + 5 + 10x = -10x - 35 + 10x

4x + 5 = -35

4x + 5 - 5 = -35 - 5

4x = -40

4x/4 = -40/4

x = 10  

Step-by-step explanation:

3 0
3 years ago
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In ax+by=c form
slope=-a/b

y intercept is when x=0


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4y+24=0
4y=-24
y=-6
y int=-6

y=mx+b
m=slope
b=y intercept
y=2/5x-6

answer is 2nd optoin
4 0
3 years ago
How many micrograms are in 1 milligram?
julia-pushkina [17]

Answer:

1,000 micrograms

Step-by-step explanation:


6 0
3 years ago
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