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OleMash [197]
4 years ago
6

Can anyone help me? a^2 -2a+2a-4-a^2+2a+3a+6=3a+9

Mathematics
2 answers:
slavikrds [6]4 years ago
8 0

Hi, hope this helps :)

Alinara [238K]4 years ago
6 0

Answer:

a=7/2

Step-by-step explanation:

a^2-2a+2a-4-a^2+2a+3a+6=3a+9

You want to solve for "a"

1. Mover all terms on the right side to the left side setting this equation to zero.

2. Combine Like Terms

3. Divide to isolate your "a"

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Michael invested 5,000 in an account that has a 5.5% annual interest rate. What equation best describes investment after T years
ivolga24 [154]

Answer:

V = 5000 +  275*T   for simple annual interest

or:   A = 5000 * (1.055)^T   for an annual compound interest

Step-by-step explanation:

I assume this is a simple interest rate.  If not I will give the one for compound interest.

V = 5000 + 5000* 0.055 * T      (Value of account after T years)

V = 5000 +  275*T   for simple annual interest

or:   A = 5000 * (1.055)^T   for an annual compound interest

5 0
3 years ago
Is trapezoid ABDC the result of a dilation of trapezoid MNPQ by a scale factor of ? Why or why not?
Nady [450]

Answer:

No, because AB is 2/5 the length MN but CD is 1/3 the length QP.  

Step-by-step explanation:

Comparing the corresponding sides, the length of AB is 4.  The length of MN is 10.  This makes their ratio 4/10 = 2/5.

The length of CD is 2.  The length of QP is 6.  this makes their ratio 2/6 = 1/3.

The ratios of the sides are not the same, so the figure is not proportional and is therefore not a dilation.

8 0
3 years ago
Read 2 more answers
3(2y-3)=27can u solve this one
navik [9.2K]
3(2y-3)=27
6y-9=27
6y=36
y=6
7 0
3 years ago
Solve for x.<br><br><br><br> 5+x+(−2)=−8
levacccp [35]
5+х-2+8=0
х+5-2+8=0
х+11=0
х=0-11
х=-11
7 0
3 years ago
Help pls this assignment has to be turned in by today
Papessa [141]

Answer:

v = 21

Step-by-step explanation:

the sum of the interior angles of a triangle is 180 degrees

add all 3 angle measures and set equal to 180:  

4v + 2v + 54 = 180

6v = 126

v = 21

4 0
3 years ago
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