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Tanzania [10]
3 years ago
12

Factorise the following problem:x^2+4x+4

Mathematics
2 answers:
docker41 [41]3 years ago
5 0

Answer:

2^4X+3

Step-by-step explanation:

I

alexdok [17]3 years ago
4 0

Answer:

it's a remarkable identity :

(x+2)^2

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A total of 31,000 is to be invested, some in bonds and some in certificates of deposit (CDs). If the amount invested in bonds is
kupik [55]

Answer:

Bonds: $42,000

Certificates of deposit: $41,000

Step-by-step explanation:

Total invested = Amount in bonds + Amount in CDs

 

Amount in bonds = Amount in CDs + 1000

 

Let the amount in bonds = B and the amount in CDs = C

 

 

1. 83,000 = B + C

 

2. B = C+1000

 

Since the above expression (#2) defines B, you can substitute it for the B in the first equation (#1).

 

83,000 = C + 1000 + C

 

Now, you can solve for C.

 

83,000 = 2C + 1000

82,000 = 2C

41,000 = C

 

You know that the amount invested in bonds is $1000 greater than the amount invested in CDs, so add $1000 to C and you find B, $42,000.

4 0
3 years ago
Perimeter of a triangle (combine like terms)
patriot [66]

Answer:

6x+3

Step-by-step explanation:

(x+4)+(3x-2)+(2x+1)

=x+4+3x-2+2x+1

=x+4+3x-2+2x+1 --> Here I'm just bolding the variables. This makes it easier to combine like terms in the next line.

=6x+4-2+1

=6x+3

5 0
2 years ago
Read 2 more answers
The water under a draw bridge was 15 feet deep at midnight. As the tide went out, the
Vsevolod [243]

Answer:

80 minutes or 1 h 20 minutes

Step-by-step explanation:

15-13=2

2/0.025=80

So we can conclude that it takes 80 minutes till it reaches 13 feet.

7 0
3 years ago
Find the total surface area.
Damm [24]
I think it’s 3 (900 cm2) sorry if it’s wrong.
5 0
1 year ago
Please help me quick!!
ki77a [65]

Answer: how many hours is she working

Step-by-step explanation:

8 0
3 years ago
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