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
dalvyx [7]
2 years ago
9

Is x^2 -4x = =4x +7 a quadratic equation

Mathematics
1 answer:
Tems11 [23]2 years ago
3 0

Answer:

x=4+√23 , 4-√23

Step-by-step explanation:

x^2-4x=4x+7

x^2-8x-7=0

now solving from quadratic equation

x=4+√23 , 4-√23

You might be interested in
how long will it take b and c to equal the same if b starts with 30,000 with an raise of 2400 and c starts with 36000 with a rai
Rufina [12.5K]
The easiest way is to make equations y=2400x+30000 and y=2000+36000
and then put that in the calculator and go to table and the point they intersect at is (15,66000)
3 0
3 years ago
Find the lowest common denominator of and . A. x3y4 B. x2y3 C. xy4 D. x4y5
Blizzard [7]
Lowest Common Denominator refers to lowes t common multiple. These expressions have two terms 'x' and 'y' and we want to choose the expression that has the highest power such that the other expressions can be multiplied into the common denominator.

For the 'x' term, the highest power is x⁴ and for the 'y' term, the highest power is y⁵

Common denominator of A, B, C, and D: x⁴y⁵




5 0
3 years ago
The side lengths of a triangle are 9, 12, and 15. Is this a right triangle?
andriy [413]

Answer:

<h2>Yes, this is a right triangle.</h2>

Step-by-step explanation:

Hypotenuse always have the highest number than base and perpendicular.

Hypotenuse ( h ) = 15

Base ( b ) = 9

Perpendicular ( p ) = 12

Let's see whether the given triangle is a right triangle or not

Using Pythagoras theorem:

{h}^{2}  =  {p}^{2}  +  {b}^{2}

Plugging the values,

{15}^{2}  =  {12}^{2}  +  {9}^{2}

Evaluate the power

225  = 144 + 81

Calculate the sum

225 = 225

Hypotenuse is equal to the sum of perpendicular and base.

So , we can say that the given lengths of the triangle makes a right triangle.

Hope this helps..

Best regards!!

4 0
3 years ago
Read 2 more answers
Jennifer is shopping with her mom. They pay 2 dollars per pound for tomatoes. What is the constant of proportionality in the sit
pantera1 [17]
2x=y where 2 is dollars per tomatoe, x is amount of pounds of tomatoes, and y is amount of money spent in total. say you got 3 pounds of tomatoes; the equation would be 2(3)=y. y=6. Hope I helped! 
5 0
3 years ago
Mr. Aba builds a circular patio with a diameter of 12 feet. He covers the patio with paving stones. The cost of the paving stone
Anettt [7]

Answer:

395.85

Step-by-step explanation:

If the diameter is 12, then the radius must be 6. Following the formula of pi: 2 * pi * radius, our result is 37.7. 37.7 * 10.50 is 395.85

I really hope this helps. My memory of circles and pi isn't the best.

8 0
2 years ago
Read 2 more answers
Other questions:
  • .Find the area of the square park whose perimeter is 120m.
    6·1 answer
  • How many thousands does 0.572 represent
    11·2 answers
  • Randy is designing a circular garden that is 18 feet in diameter. He is buying plastic edging that costs $1.50 per foot. He can
    10·1 answer
  • Ms. Clint is comparing the sales of sweaters and gloves at her store for the past ten winter weeks. Select the true statement ba
    6·2 answers
  • TRY IT Identifying Inequalities with No S.
    12·2 answers
  • 2x=45-3xs simplify?
    11·1 answer
  • TIME REMAINING
    12·1 answer
  • Help pelase i need help
    13·1 answer
  • Who will solve this attached picture problem correctly they will be marked as Brainliest answer.​
    5·1 answer
  • What is the mean for this list of numbers? 4, 12, 13, 7​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!