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asambeis [7]
2 years ago
6

Solve the following using completing the square method :

Mathematics
1 answer:
Lesechka [4]2 years ago
7 0

Answer:

1. is 3843

2. is 4903

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At the start of 2012, the US federal budget had a deficit of more than $1.5×1013. Convert this number to decimal form.
kotegsom [21]

Answer:

Just multiple it

Step-by-step explanation:

1.5 × 1013

1519.5 has your result

7 0
3 years ago
How do you solve this?
zavuch27 [327]

Answer:

f(- 10) = 74

Step-by-step explanation:

To find f(- 10) , substitute n = - 10 into f(n) , that is

f(- 10) = - 7(- 10) + 4 = 70 + 4 = 74

3 0
2 years ago
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Sheila can ride her bicycle 6000 meters in 15 minutes. How far can she ride her bicycle in 2 minutes.
taurus [48]

Answer: about 500

Step-by-step explanation:

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40+56; if a = 1/2; 6 = 5
ExtremeBDS [4]

Answer:

Step-by-step explanation:

6 0
2 years ago
During a tunnel construction project, engineers used explosives to excavate partway into a mountain. Because of time constraints
AnnyKZ [126]

The given data can be tabulated as:

number of days,x                            length of tunnel (ft), y

0                                                                              225

5                                                                              350

20                                                                           725

30                                                                           975

55                                                                           1,600

 

To check if the growth is linear, the slope at points (0, 225) and (5, 350), and (0, 225) and (20, 725) should be equal. The formula for slope is:

m = (y2 – y1) / (x2 – x1)

 

Finding for slope (0, 225) and (5, 350):

m = (350 – 225) / (5 – 0) = 25

 

Finding for slope (0, 225) and (20, 725):

m = (725 – 225) / (20 – 0) = 25

 

Therefore the equation is linear in the form of:

y = mx + b

where b is the value of y at x = 0, so b = 225

 

The complete equation is:

y = 25x + 225

 

At x = 86 days

y = 25(86) + 225

y = 2,375 ft

 

Therefore the length of the completed tunnel is 2,375 feet.

5 0
3 years ago
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