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julsineya [31]
3 years ago
9

What is the expanded notation for 0.21?

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0
0+0.2+0.01
hope this helps fiewonfcojwnq
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Find the surface area of the net below.
dedylja [7]

Answer:

472 in²

Step-by-step explanation:

This net is made up of 3 identical rectangles and 2 identical triangles.

Area of a rectangle = width x length

Area of a triangle = 1/2 x base x height

<u>Rectangle</u>

  • width = 8 in
  • length = 19 in

<u>Triangle</u>

  • base = 8 in
  • height = 2 in

<u>Surface Area</u>

SA = 3(8 x 19) + 2(0.5 x 8 x 2)

⇒ SA = 456 + 16

⇒ SA = 472 in²

5 0
3 years ago
X2+ 1 = 9
Aleks04 [339]

Answer:

X = 4

Step-by-step explanation:

x2 + 1 = 9

We have to cross 1 over to the other side so that x becomes a value on its own. Because we are it over, the addition sign changes to subtraction which makes the expression,

x2 = 9- 1

x2 = 8

For x to stand alone we have to divide both sides by 2

x 2/2 = x

and 8/2 = 4

Therefore x=4 (Answer)

3 0
3 years ago
Which ordered pair is a solution to the system of linear equations -4x+y=8 and x-5y=17 ?
Nastasia [14]

Answer:

(-3,-4)

Step-by-step explanation:

6 0
3 years ago
Solve for g. g/20 ≤5
Nadusha1986 [10]

\frac{g}{20}≤5

Multiplying by 20 in all sides gives:

g≤(20×5)

Answer: g≤100



4 0
3 years ago
one superstar pizza feeds 4 people. if you invite 42 people to your party how many pizzas should you order?​
erica [24]
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