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
charle [14.2K]
4 years ago
7

Write the quadratic equation whose roots are -3 and 3 and whose leading coefficient is 5. (Use the letter x to represent the var

iable)
Mathematics
1 answer:
Bumek [7]4 years ago
4 0
A(x - x₁)(x - x₂) = 0
a=5,  x₁=-3,  x₂ = 3

so:
5(x-(-3))(x-3)=0
5(x+3)(x-3)=0
5(x²-9) = 0
5x² - 45 = 0   ←  answer
You might be interested in
A dog pen in the shape of a rectangle is to be built using one wall of a house as a side. If 132 feet
diamong [38]
This is a very poorly written question. im assuming the house wall is at least 130 ft since there is no information given about it.

each set of side lengths has three elements, the long side and the two short sides. we're asked to list all whole number possibilities so start anywhere, the two short sides being 1ft
(1 1 130). the long side has to be the difference of 132 and the length of both short sides.

the area is one of the short sides times the ling side, in the first case 1*130=130 sqft

continuing the list

(2 2 128) area=256
(3 3 126) area=378
(4 4 124) area=496
(5 5 122) area=610

the short sides increase by 1, the long side decreases by 2, the area gets bigger, but the difference between the areas are 4 less each time. dividing the first difference, 122, by 4 will give us a number to make a better guess from.

122÷4=30.5

so lets try

(30 30 72) area=2160

lets try 31 and see if that gives a smaller area

(31 31 70) area = 2170

(32 32 68) area =2176

(33 33 66) area = 2178

(34 34 64) area = 2176

so the area is decreasing now which means the maximum area is found when thw long side is 66 feet and the short sides are 33 feet.

as far as listing all possibilities, you see the pattern i started, i leave the rest to you
6 0
3 years ago
five people, each working 8 hours a day, can assemble 400 toys in a five day work week. what is the average number of toys assem
vladimir1956 [14]

The question asks for the rate of toys per hour.

So we shall divide the total toys assembled by the total hours.

Its a five day week.

The number of hours allotted per day are 8.

So total allotted during the week are 8 × 5 = 40 hours.

Number of toys made during the week are 400.

Hence the number of toys assembled per hour per person

= number of toys / number of hours

= 400 / 40

= 10 toys per hour per person.

The average number of toys assembled per hour per person is 10.


8 0
3 years ago
Read 2 more answers
Find the value of the variable
earnstyle [38]

Answer:

x

Step-by-step explanation:

If c represents the total cost in dollars and cents of the juice for any number, j, of bottles of juice

8 0
3 years ago
Read 2 more answers
The length of a rectangle is 1 foot less than 3 times the width. The area is 310 ft². Find the dimensions of the rectangle.
sattari [20]
The dimension would be 10, i think


brainly pleaseee
4 0
3 years ago
What is the place value of the 5 in 59.085?
Leokris [45]

Answer:

Tens

Step-by-step explanation:

It's in the tens place because, it's after the decimal point so don't worry about anything after the decimal. So it's just 59. 9 is the first digit making it in the ones place. So that leaves 5.

5 0
3 years ago
Other questions:
  • A snail is traveling at a rate of 1.5 feet per minute. Write the rate in feet per second. Write the rate in feet per hour
    10·1 answer
  • Which one of the following statements is it ?
    6·2 answers
  • I need help simplifying this
    10·1 answer
  • Mike is driving a boat at 12 mph and is increasing his speed by 0.2 mph each second. Hank is driving a boat at 26.4 mph and is d
    12·1 answer
  • Maimi's annual precipitation in 2000 was 61.05 in. Albanys was 46.92 in. How much greater was Miami's precipition than Albany's?
    10·2 answers
  • Solve for x.
    6·1 answer
  • KAMAKURA KAMAKUARA YASS QUEEN ✨Anywaysss.. help me, I know this but I’m too lazy to do it, DKSKSK
    5·1 answer
  • Titus works at a hotel. Part of his job is to keep the complimentary pitcher of water at least half full and always with ice. Wh
    8·2 answers
  • Plsss help me :((((((
    13·1 answer
  • There are 20,000 owls in the wild. Every decade, the number of owls halved. is this linear or Exponential.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!