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
algol13
3 years ago
6

The difference of the square of a number and 28 is equal to 3 times that number

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0

Answer:

- 4, 7

Step-by-step explanation:

Let the required number be x.

Therefore, according to the given condition:

{x}^{2}  - 28 = 3x \\  {x}^{2}  - 3x - 28 = 0 \\  {x}^{2}  - 7x + 4x - 28 = 0 \\ x(x - 7) + 4(x - 7) = 0 \\ (x - 7)(x + 4) = 0 \\ x - 7 = 0 \: or \: x + 4 = 0 \\ x = 7 \: or \: x =  - 4 \\

You might be interested in
WRITE AN EQUATION 331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students we
Molodets [167]

Answer:

probably 331-7=6x

Step-by-step explanation:

cause you take away 7 and have 324, then divide by 6 and end up with 54 soooo

3 0
2 years ago
In triangle ABC, m a = 45 m b =65 and a = 15.05. Use the law of sines to find b. Round your answer to the nearest tenth.
skelet666 [1.2K]
The Law of Sines is the relationship between the sides and angles of non-right (oblique)triangles .  Simply, it states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle.

6 0
3 years ago
Read 2 more answers
Use the Distributive Property to factor the polynomial.
yawa3891 [41]
<span>30v + 50x = 10(3v + 5x) (Answer A)

2k</span>² + 4k = 2k(k + 2) (Answer D)<span>


</span>
4 0
2 years ago
Read 2 more answers
Divide: 7/8 ÷ 3/8<br><br> A) 21/64<br><br> B) 3/7<br><br> C) 64/21<br><br> D) 7/3
lozanna [386]

Answer:

When you need to divide two fractions, reverse the second fraction, then multiply the top numbers by each other and the bottom numbers by each other.


7/8 / 3/8 =

7/8 x 8/3 =

(7 x 8) / (8 x 3) =

56/24 which reduces to 7/3

The answer is D) 7/3


5 0
3 years ago
Answer and show work #36
Artyom0805 [142]
I dont understant that
8 0
3 years ago
Other questions:
  • Find the product.
    5·2 answers
  • A driver brings a car to a full stop in 2.0s. It’s acceleration is -11 m/s^2. How far did the car travel while braking
    11·2 answers
  • What is 2 1\3 + 3 1\3
    12·2 answers
  • A college graduating class consists of 450 students. There are 206 more females than males. Determine the number of male and fem
    13·2 answers
  • 27 x 36 <br><br> What will this equal
    9·2 answers
  • -1+7=6x<br> 4y-5=-9x<br><br> Remember I’m suppose to graph the x,y ☺️
    9·1 answer
  • Need help! 22 points!​
    15·1 answer
  • WILL GIVE BRAINLIST IN SECONDS!!! <br><br> [ solve for x ]
    14·1 answer
  • -2(3+m)= <br> Solve the question
    13·1 answer
  • A person driving her car at 12.5 m/s approaches an intersection just as the traffic light turns yellow. She knows that the yello
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!