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
tia_tia [17]
3 years ago
7

Zoom plz join you dont have to have video on tho

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

Okay 9 + 10 = 21

Step-by-step explanation:

You might be interested in
A kitchen starts with 4 fruit flies and triples in population every day. How many fruit flies
dexar [7]

Answer:

4x3n=Y

Step-by-step explanation:

4 0
2 years ago
Suppose you solved a second-order equation by rewriting it as a system and found two scalar solutions: y = e^5x and z = e^2x. Th
xenn [34]

Answer:

The solutions are linearly independent because the Wronskian is not equal to 0 for all x.

The value of the Wronskian is \bold{W=-3e^{7x}}

Step-by-step explanation:

We can calculate the Wronskian using the fundamental solutions that we are provided and their corresponding the derivatives, since the Wroskian is defined as the following determinant.

W = \left|\begin{array}{cc}y&z\\y'&z'\end{array}\right|

Thus replacing the functions of the exercise we get:

W = \left|\begin{array}{cc}e^{5x}&e^{2x}\\5e^{5x}&2e^{2x}\end{array}\right|

Working with the determinant we get

W = 2e^{7x}-5e^{7x}\\W=-3e^{7x}

Thus we have found that the Wronskian is not 0, so the solutions are linearly independent.

3 0
3 years ago
There are 3,848 students and staff at happy town high school. if the principal friendly and 15 teachers are infected by a zombie
Ostrovityanka [42]

Answer:

no

Step-by-step explanation:

at firth hr - 15×2=

2 nd hr - 60×2

and so on,it takes more than 8 hr

5 0
3 years ago
The life expectancy of a circulating coin is 30 years. The life expectancy of a circulating dollar bill is only
Afina-wow [57]
Life expectancy of dollar bill = d
life expectancy of coin = c

d = 1/20 c

substitute value in for c (30)

d = 1/20 * 30
d = 30/20
d = 1.5

life expectancy of a dollar bill = 1.5 years
3 0
3 years ago
an item is regularly priced at $90 . alan bought it on sale for 30% off the regular price. how much did alan pay?
Minchanka [31]

Answer:

$63

Step-by-step explanation:

100-30=70%

0.7*90=63

3 0
3 years ago
Other questions:
  • Please help me I stink at math ☹️
    14·2 answers
  • How much do you pay tax per each 1 dollar
    11·2 answers
  • What are three equivalents for 3/5
    6·2 answers
  • A building contractor is to dig a foundation 50 feet long, 20 feet wide and 10 feet deep. The contractor pays $15 per load for t
    8·1 answer
  • Bertha and Vernon are competing in a diving competition. Bertha's dive ended -54 m from the starting platform. Vernon's dive end
    6·1 answer
  • En red socks and ten blue socks are all mixed up in a dresser drawer. The 20 socks are exactly alike except for their colour. Th
    10·1 answer
  • Pl help it’s for a grade
    12·2 answers
  • Help please I don’t get itttttttt I’ll mark brainlist if I can pleaseee
    9·1 answer
  • I’ll give someone brainliest if they answer this
    10·1 answer
  • Consider the given density curve.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!