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ryzh [129]
2 years ago
6

Simply the expression -3(x+3)2-3+3x. what is the simplified expression in standard form?

Mathematics
2 answers:
adelina 88 [10]2 years ago
8 0

Answer:

TL;DR on behalf of all other answers, B

Step-by-step explanation:

Lyrx [107]2 years ago
3 0
(-3x-9)× 2
-6x-18 -3 +3x
-3x -21
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Find the area of the shaded region. Use 3.14 for at as necessary. PLEASE HELP ASAP!!
ollegr [7]

9514 1404 393

Answer:

  A. 53.5cm^2

Step-by-step explanation:

The area of the circle is ...

  A = πr²

  A = 3.14(5 cm)² = 78.5 cm²

The area of the triangle is ...

  A = 1/2bh

  A = 1/2(10 cm)(5 cm) = 25 cm²

The shaded area is the difference between the circle area and the triangle area:

  shaded = 78.5 cm² -25 cm² = 53.5 cm²

_____

<em>Additional comment</em>

As with many multiple-choice questions, you can simply pick the answer that is not outlandish. The circle will fit into a square that is 10 cm on a side, so its total area is less than 100 cm² (eliminates choice B).

The shaded area is definitely more than 1/4 of that 100 cm² square, so choices C and D are eliminated, too. The only choice that is not unreasonable is choice A.

7 0
2 years ago
Find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6​
abruzzese [7]

Answer:

a₆ = 13x + 31

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

Here a₁ = 3x + 1 and d = 2x + 6 , then

a₆ = 3x + 1 + 5(2x + 6)

    = 3x + 1 + 10x + 30

    = 13x + 31

7 0
3 years ago
Read 2 more answers
Help me to answer this please
Ksju [112]
The correct answer to your question is C. (I think, I'm pretty sure)
3 0
3 years ago
A coin is dropped in a 15.0 m deep well.
guajiro [1.7K]

Answer:

 57.04m

Step-by-step explanation:

7 0
3 years ago
2. Graph the function d Sh, which gives the approximate distance d in miles to the horizon, (l p where h is the height of the vi
Bumek [7]
<span>in measuring distance you must measure your height of eye, the distance bteween the ground and your eyes in meters or feet. Which in your case is the 95,000 feet. Multiply that by 1.5, then take the square root of that answer and you get d= the distance you can see to the horizon.</span>
6 0
3 years ago
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