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Gnoma [55]
3 years ago
12

Total surface area of the drawing

Mathematics
1 answer:
Crazy boy [7]3 years ago
4 0
The pentagon's area is the sum of the 5 triangles that comprise it.  This is

5( \frac{1}{2}bh) \times 2=5(9)(6.2)= 279

where the factor of 2 accounts for the top and bottom.  The walls have an area of 5 rectangles

5(bh)=5(9)(6)=270 \\  \\ 279+270=549km^2
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An electrician needs 18.25 feet of wire for each outlet she installs. How man can she install with a 50 ft spool of wire?
jolli1 [7]

Answer:

2

Step-by-step explanation:

Ok, so if we know how much wire is needed for one outlet, we must figure out how many 18.25s fit into 50 ft of wire.

18.25*2=36.5

18.25*3=54.75 which is over 50 so it cannot possibly be more than 2.

3 0
3 years ago
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More help please!!!!!!!!!!!!!!!!!!!!!!!
Gemiola [76]

Answer:

3 1/3

Step-by-step explanation:

10+z=z+z+z+z

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8 0
3 years ago
Solve the equation. |x + 5| = 9 {–4, 14} {–14, 4} {4, 14} {–14, –4}
inna [77]

Answer:

{-14, 4}

Step-by-step explanation:

the absolute value function only makes sure that the result always has a positive sign.

so, (x + 5) must be either +9 or -9 to make the original equation true. the absolute value would turn both into +9.

so,

x + 5 = 9

x = 4

and

x + 5 = -9

x = -14

that gives us the correct set of solutions as indicated above.

6 0
2 years ago
How many line segments are shown?<br><br> A.8<br> B.12<br> C.6<br> D.10
Pani-rosa [81]
The answer is B. There are 12 line segments
5 0
3 years ago
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A) x2 when x = 5<br> b) y2 when y = -2<br> c) z2 when z = 0.5
Andrews [41]

Answer:

A) 25

B) 4

C) 0.25

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6 0
3 years ago
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