1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liubo4ka [24]
3 years ago
7

What value is needed to complete the square x^2-6x+

Mathematics
1 answer:
Andrew [12]3 years ago
4 0

Answer:

9

Step-by-step explanation:

Take half of the coefficient of x and square it.

-6/2 = -3

Square -3 to get 9.

Answer: 9

You might be interested in
If a person bikes 6 miles in 15 minutes, how far can she bike in 1.5 hours?
Natalka [10]

Answer:

36\:miles

Step-by-step explanation:

There is <em>one-and-a-half</em> <em>hour</em> in <em>ninety</em><em> </em><em>minutes</em>,<em> </em>so multiply 6 by 15 to get 90, then whatever is done to the bottom is also done to the top, so you <em>square</em> 6 to get 36.

I am joyous to assist you anytime.

8 0
3 years ago
A press release describing the 1986 nonstop, round-the-world trip by the aircraft voyager including the following data:
adoni [48]

Answer:

a.) the average speed of the aircraft in miles per hour

115.76 miles/ hour

b.) the fuel consumption in miles per pound of fuel

(assume a density of 0.70 g/mL for the fuel.)

2.8 miles/Ib of fuel

Step-by-step explanation:

A press release describing the 1986 nonstop, round-the-world trip by the aircraft voyager including the following data:

flight distance: 25,012 miles

flight time: 9 days, 3 min., 44 seconds

fuel capacity: nearly 9000 lbs.

fuel remaining at the end of flight: 14 gal.

To the maximum number of significant figure permitted, calculate:

a.) the average speed of the aircraft in miles per hour

Step 1

We convert the time to hours

flight time: 9 days, 3 min., 44 seconds

1 day = 24 hours

9 days =

24 × 9

= 216 hours

60 mins = 1 hour

3 mins =

3/60 = 1/20 = 0.05 hours

1 hour = 60 minutes

1 minute = 60 seconds

1 hour = 60 × 60 = 3600 seconds

If 3600 seconds = 1 hour

44 seconds =

= 44/3600

= 0.0122222222 hours

Total number of hours spent = (216 + 0.05 + 0.0122222222) hours

= 216.06222222 hours

Speed = Distance/Time

= flight distance: 25,012 miles

Speed = 25,012 miles/ 216.06222222hours

= 115.76294895 miles/ hour

Approximately = 115.76 miles/ hour

b.) the fuel consumption in miles per pound of fuel

(assume a density of 0.70 g/mL for the fuel.)

Step 1

We determine how much fuel is used

We have 14 gallons of fuel left over

1 gallon = 3.785 litres

14 gallons =

Cross Multiply

14 gallons × 3.785 liters/1 gallon

= 52.9958 liters

Note that density of fuel =

0.70 g/ml

1 gram / millilitre = 1 kilogram / litre

Hence, 0.7g/ml = 0.7 kg/L

Hence,the mass of fuel left = 52.9958 liters * 0.7 = 37.09706kg

1 kilogram = 2.205 pounds

37.09706kg =

37.09706kg × 2.205 pounds

= 81.7990173 lbs

Since the full capacity = 9000 lbs

The fuel used = 9000 - 81.7990173 lbs

= 8918.2009827 lbs

Hence, fuel consumption is

Distance/ amount of fuel used

25012/8918.2009827 lbs = 2.8046015164 miles/lb of fuel

Approximately = 2.8 miles/Ib of fuel

7 0
3 years ago
In this discussion, you will discuss the relationships of key points on the unit circle. For the key points shown in the four qu
butalik [34]
Did you ever do this if so do you have an email I can message you on. I've been stuck on this.
3 0
3 years ago
What is 289% as a decimal
lakkis [162]

Answer:

the answer is 2.89

Step-by-step explanation:

u divide 289 to 100 or 289/100=2.89

hope this helps

4 0
2 years ago
Read 2 more answers
Which of the following explains the relationship between angles B and C? Lines JK and JM intersect at point J, creating four ang
zhenek [66]

Answer:

Adjacent angles

4 0
2 years ago
Read 2 more answers
Other questions:
  • Cassidy's goal is to raise more than $75 for charity. She has already raised $6. Now she is selling cupcakes for $3 each to reac
    11·2 answers
  • Please help I'm not good with fractions (the circled ones)
    7·1 answer
  • Please help me with this
    5·1 answer
  • Copy each exerise $37 45¢
    10·1 answer
  • A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have.
    11·2 answers
  • The local weather report stated there is a 1/3 chance of rain on friday.How likely is it to rain?
    15·1 answer
  • An object travels at 20 m/s for 20 seconds. how far has it traveled?
    8·1 answer
  • Whats 2 +2 first one to answer I might give brainiest
    5·2 answers
  • Out of the 10 people in Carla’s office, 6 regularly watch the evening news on TV. a) What fraction of the workers watch the even
    5·2 answers
  • Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 81 people
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!