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
brilliants [131]
3 years ago
6

Find each solution to the quadratic by using the square root property 4. x2 -49= 0 5. 3x2 – 27 = 0 6. x2 - 225 = 0 help plz 20 p

oints and brainliest
Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
4. x^2 = 49  so x = +/- 7

5. 3x^2 = 27 
x^2 = 9
x = +- 3

6.x^2 = 225
 x = +/- 15
You might be interested in
Cruz is training to compete in a triathlon. He left his house at 6:00 and ran until 7:30. Then he rode his bike until 9:45. He c
alexandr402 [8]

Answer: Cruz's biking is 16 miles per hour and his running speed is 10 miles per hour.

Step-by-step explanation:

Let x represent Cruz's speed when running.

He left his house at 6:00 and ran until 7:30. This means that the time spent while running is 1hour 30 minutes = 1.5 hours.

Distance = speed × time

Distance covered while running would be

1.5 × x = 1.5x

Then he rode his bike until 9:45. This means that the time he spent riding his bike is 2hours 15 minutes = 2 hours + 15/60 = 2.25 hours

His speed when biking was 1.6 times his speed when running. It means his speed when biking would be

1.6 × x = 1.6x

Distance covered while riding would be

1.6x × 2.25 = 3.6x

He covered a total distance of 51 miles. Therefore,

1.5x + 3.6x = 51

5.1x = 51

x = 51/5.1 = 10 miles per hour.

His biking speed would be

1.6 × 10 = 16 miles per hour.

5 0
3 years ago
Help with algebra 2
Setler [38]
The answer is x=-6
2+(-3x)+(-7)=-x+19
-3x+-5=-x+19 
 -3x=x+24 
-4x=24 
x=-6
8 0
3 years ago
The town of lantana needs $14,000 for a new playground. lantana elementary school raised $5358 lantana middle school raised $283
Arada [10]
Total money needed = $14,000
Total money collected = $5358+$2834+4132 = $12324

Additional money needed = Total money - Money collected

=> $14,000 - $12,324
=> $1,676

So they need $1676 more money to be collected
7 0
3 years ago
15 is what percent of 25?
jok3333 [9.3K]

Answer:

60%

Step-by-step explanation:

divide 15/25 and you get 0.6 which is 60 percent

7 0
3 years ago
Read 2 more answers
What is the answer for this question?
const2013 [10]

The least steep graph is y=1/2 x+2, or C, because the slope of the graph is the closest to 0, or being a flat horizontal line.

3 0
4 years ago
Read 2 more answers
Other questions:
  • What is -3/5 simplified
    6·2 answers
  • Find the area of this shape.
    15·1 answer
  • Find the equation of the line parallel to y= 6x+7 with a y-intercept of 8
    6·1 answer
  • the triangles below are congruent and their corresponding parts are marked. name all the corresponding congruent angles and side
    10·1 answer
  • "Express as a mixed numeral: 39/8" is a problem found in a fifth-grade arithmetic textbook. This problem is BEST solved through:
    9·1 answer
  • 2y2 times -8 help me pleaseee
    7·1 answer
  • Calculate the pay for the following day of a
    11·1 answer
  • Please help me! I need details please!
    9·1 answer
  • NO FILES NO LINKS ASAP
    11·1 answer
  • Solve for j: j + j / 2 + J + 5 = 45
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!