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
Murrr4er [49]
3 years ago
8

Solve equation by using the quadratic formula. 2x²-5x-7​

Mathematics
1 answer:
Korolek [52]3 years ago
8 0

Answer:

3.5 or -1 first of all know the formula method , I Don't have the right symbols so I don't want to confuse you so the number infront of x^2 or any alphabet with a square is a , b is the number infront of the letter without a square and c is the single number without an alphabet, this is the easiest formula compared to factorization method so check online or your textbook for the formula

You might be interested in
BASED ON WHAT U KNOW ALREADY What are your thoughts about avoiding high dopamine activities in order to make other activities fe
musickatia [10]

i dont know, my personal thoughts is that I will not do it:)

8 0
3 years ago
Read 2 more answers
The growth of a city is described by the population functionwhereis the initial population of the city, t is the time in years,
mamaluj [8]

Complete question:

The growth of a city is described by the population function p(t) = P0e^kt where P0 is the initial population of the city, t is the time in years, and k is a constant. If the population of the city atis 19,000 and the population of the city atis 23,000, which is the nearest approximation to the population of the city at

Answer:

27,800

Step-by-step explanation:

We need to obtain the initial population(P0) and constant value (k)

Population function : p(t) = P0e^kt

At t = 0, population = 19,000

19,000 = P0e^(k*0)

19,000 = P0 * e^0

19000 = P0 * 1

19000 = P0

Hence, initial population = 19,000

At t = 3; population = 23,000

23,000 = 19000e^(k*3)

23000 = 19000 * e^3k

e^3k = 23000/ 19000

e^3k = 1.2105263

Take the ln

3k = ln(1.2105263)

k = 0.1910552 / 3

k = 0.0636850

At t = 6

p(t) = P0e^kt

p(6) = 19000 * e^(0.0636850 * 6)

P(6) = 19000 * e^0.3821104

P(6) = 19000 * 1.4653739

P(6) = 27842.104

27,800 ( nearest whole number)

3 0
3 years ago
What is the equivalent decimals for 1\2
DedPeter [7]
.5 is the equivalent decimal for 1/2<span />
3 0
4 years ago
Read 2 more answers
25 cm of ribbon at £2.20 per metre what is the cost
Step2247 [10]
0.55 pence or quid per 25 centimeters as if you multiply it by 4 it would be 2.20 pound because 1 metre is 100 centimeters after i divide 100 by 25 i get 4 which would be 1/4 which i would then multiply 1/4 x 2.2 pound 
3 0
4 years ago
Estimate the volumevolume of dalkbox 15 ou inThe estimated volume of the large box is aboutain
jeka57 [31]
The answer is 10 because if you round It Off it will be 5 + 10 equal 15 Sultan is the answer to your question
6 0
3 years ago
Other questions:
  • Sarah is 27 years old and is retiring at the age of 65. When she retires, she estimates that she will need a semiannual income f
    8·1 answer
  • During a snowstorm, 4 -1/2 inches of snow fell in 1 -1/3 hours. The same amount of snow fell each hour.
    6·1 answer
  • Please help me ASAP!!!​
    5·1 answer
  • In what way are juveniles subject to different laws than adults?
    11·2 answers
  • I am a rectangle. One of my sides is 8 centimeters long. Another side is 6 centimeters long. What is my area?
    10·2 answers
  • Identify the quadratic function from the four functions
    7·1 answer
  • For a school project, 6 students are working on a skit that has 4 different roles. Each role can be played by anyone, and no stu
    13·2 answers
  • The cross country team practice by jogging on town steerts the average jogging rate is 6 mile per hour one member jogged for 3.5
    15·1 answer
  • You make 12 equal payments. You pay a total of $1440. How much is each payment?
    13·2 answers
  • how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!