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Svetach [21]
3 years ago
6

Hello!! I Need HElp ASAP PLEAASSEE

Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

  a = -1

Step-by-step explanation:

The line of symmetry for the parabola given by ...

  y = ax² +bx +c

is

  x = -b/(2a)

Using the given values, we have ...

  -2 = -(-4)/(2a)

Multiplying by -a/2, we get ...

  a = (4/2)(-1/2) = -1

The value of "a" is -1.

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A used car was purchased in July 1999 for $11,900. If the car depreciates 13% of it's value each year, what is the value of the
trapecia [35]
1999 price = 11900
it depreciates 13%
\frac{13}{100} \times 11900 = 1547
year 2000 cost = 11900 - 1547 = 10353
it depreciates 13%
\frac{13}{100} \times 10353 = 1345.89
year 2001 cost = 10353 - 1345.89 = 9007.11
it depreciates 13%
\frac{13}{100} \times 9007.11 = 1170.92
year 2002 cost = 9007.11 - 1170.92 = 7836.19
pls mark as brainliest
8 0
3 years ago
The walls of a farm silo form a hexagonal prism as shown. What is the volume of the​ silo?
Valentin [98]
I think this is what you meant you meant silo or Solid if you meat solid the answer is there in the picture

3 0
3 years ago
I need Help ASAP PLS, WILL FAN AND MEDAL  79 POINTS IF ANSWER
Alenkinab [10]
Okay, i went with a rectangle, if the rectangle base is 12 and the height is 6 then it would be 12*6 + 12*6 + 12*6= 216 now the ratio is easy , 72:72 because that's what makes up the 12*6 and because there is 3 it's 72 two times now for part b 5 x 10 so that is the height and length so now what you want to do is do what you did the second time so it would be 72:50.
Extra tips: To find the volume of any cube you need to know the length, width and height. The formula to find the volume multiplies the length by the width by the height. The good news for a cube is that the measure of each of these dimensions is exactly the same. Therefore, you can multiply the length of any side three times.
3 0
3 years ago
Read 2 more answers
PLZZZ CHECK ME<br><br> Is this correct, if not please help me.
Gwar [14]
Hello! For this question, you solve using order of operations, which you probably already have remembered as PEMDAS. Anytime a number is raised to the 0 power, that is equivalent to 1. 0.5^0 is 1. 250 * 1 is 250. x = 0 gives us the answer of 250. Now, let's solve for the number by the second power. 0.5² is 0.25. 250 * 0.25 is 62.5. x² gives us 62.5. Now, let's subtract the two numbers together. 250 - 62.5 is 187.5. Because the number is decreasing, the slope is negative, so the answer is -187.5. Your answer is correct.
5 0
3 years ago
A salespersons commission rate is 4% what is the commission from the sale of $36,000 worth of furnaces use pencil and paper supp
Mnenie [13.5K]

Answer:

1440

Step-by-step explanation:

36,000x0.04=1440

7 0
3 years ago
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