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
andrey2020 [161]
1 year ago
7

Can I find a tutor to help me bro ?

Mathematics
1 answer:
nignag [31]1 year ago
3 0

Solution

Given the quadratic equation:

x² + 2x + 7 = 21

x² + 2x + 7 - 21 = 0

x² + 2x - 14 = 0

a = 1, b = 2, c = - 14

(1) The number of solutions of a given quadratic equation is determine by the discriminant.

From the given values;

(2)² - 4(1 x -14) = 4 + 56 = 60

60 > 0 ( 2 solutions)

1 positive solution and 1 negative solution

Thus, number of positive solutions to this equation is one

(2) The greatest solution or positive solution to the equation is calculated as;

You might be interested in
Which ordered pair best describes the point that represents the time capsule?
luda_lava [24]

Answer:

(4, 3)

Step-by-step explanation:

just is

[character limit thing]

5 0
3 years ago
In a trapezoid, the lower base is 15 cm, the upper base is 7 cm, and each of the two legs is 10 cm. How far must each of the leg
lora16 [44]

Answer:

15 feet apart

Step-by-step explanation:

brainliest?

4 0
3 years ago
Help needed!!! Please
Sliva [168]

Answer:

<em>The correct option is:  C. x=6\sqrt{3}, y=12</em>

Step-by-step explanation:

The two angles of the triangle are given as 60° and 60°

As the sum of all three angle in any triangle is always 180°, so the measure of the third angle will be: 180°-(60°+60°) = 180° - 120° = 60°

Now each angle of the triangle is 60°, it means the triangle is equilateral.

The base of the triangle is given as 12. So, the length of each side will be 12.

That means, the value of y=12

Now in the left right triangle.....

Sin(60)=\frac{x}{y} \\ \\ \frac{\sqrt{3}} {2}=\frac{x}{12} \\ \\ 2x=12\sqrt{3} \\ \\ x=6\sqrt{3}

So, the value of x = 6\sqrt{3}

7 0
2 years ago
Suppose you estimated square root of 12 by averaging a square like rectngle.What would be a reasonable estimation?​
sesenic [268]

Answer:

3.5.

Step-by-step explanation:

3^2 = 9

and 4^2 = 16 so the square root is between 3 and 4.

Take a rectangle 3.4 by 3.6:

the area = 3.4 * 3.6 = 12.24 so an estimate of the square root could be 3.5.

3.5 * 3.5 = 12.25.

5 0
2 years ago
Distribute to create an equivalent expression with the fewest symbols possible.<br>4(x - 2 + y) =
kifflom [539]

Answer:

4x-8+4y

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • What’s the answer to this problem and how do you figure it out.
    5·1 answer
  • There were 20 gallons of gasoline in your car's gas tank. You used 4 gallons and 1 quart. How much gasoline remains in the tank?
    10·1 answer
  • Find the volume of a cone with a base area 36pi and a height equal to twice the radius
    10·1 answer
  • If ( 2 x 1) (0 x -1) = ( 15 ), then the value of x is
    6·1 answer
  • A 7.5 kg block is placed on a table. If its bottom surface area is 0.6 m2, how much pressure does the block exert on the tableto
    15·2 answers
  • If AM = 14y - 2 and MB = 10y + 6, find AM.
    14·1 answer
  • How does the division rule for exponents help in understanding why anything to the zero power is 1?
    7·2 answers
  • What is the solution to this equation?
    7·1 answer
  • A sector of a circle has an arc length of pi cm and a central angle of pi over 6 radians. What is the area of the sector?
    9·1 answer
  • Complete the equation of the line whose slope is -2 and y-intercept is (0,-8)?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!