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
natta225 [31]
4 years ago
12

Solving Quadratic Equations- Factorable 2x^2 - 7x -15= 0

Mathematics
1 answer:
Pepsi [2]4 years ago
6 0

Step-by-step explanation:

2{x}^{2}  - 7x - 15 = 0

can be factored to

(2x + 3)(x - 5) = 0

Hence,

x = 5

or

x =  -  \frac{3}{2}

You might be interested in
After eating at your favorite restaurant, you know that the bill before
PilotLPTM [1.2K]

You should leave $10.52 for waiter.

The total bill will be $67.33 including tax and tip.

Step-by-step explanation:

Given,

Bill before tax and tip = $52.60

Tip = 20% of pre tax amount

Amount of tip = \frac{20}{100}*52.60

Amount of tip = \frac{1052}{100}\\

Amount of tip = $10.52

Sales tax = 8%

Amount of sales tax = \frac{8}{100}*52.60

Amount of sales tax = 0.08*52.60

Amount of sales tax = $4.208

Final bill = Bill + Tip + Sales tax

Final bill = 52.60 + 10.52 + 4.208 = $67.33

You should leave $10.52 for waiter.

The total bill will be $67.33 including tax and tip.

Keywords: percentage, addition

Learn more about addition at:

  • brainly.com/question/833559
  • brainly.com/question/8054589

#LearnwithBrainly

8 0
4 years ago
Find the midpoint of points A(-8, 2) and B(-5, 10)
Andru [333]

Answer:

-40×20

= -40/20

= -2

Step-by-step explanation:

5 0
3 years ago
Someone help and plz make sure it’s right
Archy [21]
The answer is b because 80+60=140, -7 and then divide by three you get 11
7 0
3 years ago
Read 2 more answers
Find the measures of two complementary angles, ÐA and ÐB, if mÐA = (7x + 4)° and mÐB = (4x + 9)°. Measure of angle A = ... Measu
Westkost [7]

Answer:

The measure of angle A is 53 degrees

The measure of angle B is 37 degrees

Step-by-step explanation:

Here in this question, we are interested in calculating the measure of the two angle.

When how angles are complementary, it means the sum of both equals 90 degrees

mathematically ;

(7x + 4) + (4x + 9) = 90

7x + 4x + 4 + 9 = 90

11x + 13 = 90

11x = 90-13

11x = 77

x = 77/11 = 7

The measure of angle A = 7x + 4 = 7(7) + 4 = 49 + 4 = 53 degrees

The measure of B = 4x + 9 = 4(7) + 9 = 28 + 9 = 37 degrees

3 0
4 years ago
which answer is correct? Please and thank you!
Aleks [24]

Answer:

third option

(-3,3)

Step-by-step explanation:

plz mark me as brainlist

8 0
3 years ago
Other questions:
  • Affonso has 14 fewer dimes than nickels. He has 21 dimes. Use the five-step problem-solving plan. How many nickels does Affonso
    12·1 answer
  • How to simplify the expression 3w+2(2-3w)+2
    8·2 answers
  • Answer to solve for z??
    9·1 answer
  • -3x + 6 > 12 help meeeee
    9·1 answer
  • In the figure below, lines A and B are parallel. Find the m∠5 if m∠1 = 75° and m∠3 = 40°
    13·1 answer
  • Tori rented a car and drove 325 miles. She decided to fill up the tank before returning the car to the rental company.
    14·1 answer
  • Rachael has a job assembling a certain car accessory.
    7·1 answer
  • Help please who ever correct brainliest
    10·1 answer
  • Leon and Thomas have the same number of cherries. Leon eats 5 of his cherries and has 12 cherries left. Thomas eats 9 of his che
    14·1 answer
  • A car travels at a speed of 0.915 miles per minute. Write the speed in expanded<br> form.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!