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
Liono4ka [1.6K]
2 years ago
12

Need help with explanation on solving this problem.

Mathematics
1 answer:
ivanzaharov [21]2 years ago
8 0

Answer:

x=27.80

Step-by-step explanation:

we know that cosA=base/hypotaneous

so,

cos44 =  \frac{20}{x}  \\ x =  \frac{20}{cos(44)}  \\  =  \frac{20}{0.7193...} \\  = 27.80

You might be interested in
I need some help solving |b|+b^3;b=-2
Sedaia [141]
You can use photo math to help you,It helps a lot of people with equations. You should go ahead and give it a try
4 0
3 years ago
Help me plz and thank you
Kay [80]
The second one - 6/21
3 0
3 years ago
If tanx-cotx=5 then what is the value of tan²x+cot²x​
Roman55 [17]

Answer:

27

Step-by-step explanation:

note that tanx cotx = tanx × \frac{1}{tanx} = 1

Given

tanx - cotx = 5 ( square both sides )

(tanx - cotx)² = 5² = 25 ← expand left side using FOIL

tan²x - 2tanxcotx + cot²x = 25

tan²x - 2 + cot²x = 25 ( add 2 to both sides )

tan²x + cot²x = 27

4 0
3 years ago
I need help <br> 8 1/4 x 4 1/2 x 6 1/2
Vesnalui [34]

Answer:

241\frac{5}{16}

Step-by-step explanation:

6 0
3 years ago
Problem1 The behavior of a physical system can be described by the following first order differential equation: dy/dt=2y +t^2
daser333 [38]

Answer:

y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}.

Step-by-step explanation:

Using first order linear differential equation:

\dfrac{\mathrm{d} y}{\mathrm{d} t} = 2y + t^2

\frac{\mathrm{d} y}{\mathrm{d} t} - 2y =t^2

finding integrating factor:

I.F = e^{\int -2dt}

I.F =e^{-2t}

now,

y = \dfrac{1}{IF}(\int t^2dt+ c )

y = \dfrac{1}{e^{-2t}}(\int t^2dt+ c )

y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}

hence the solution is

y = \dfrac{t^3e^{2t}}{3}+Ce^{2t}

8 0
4 years ago
Other questions:
  • 2. Solve this equation for x:<br> 0.17k - 0.43 = 0.25k + 0.05
    5·1 answer
  • What is 86x65=?Bc I don't know!​
    15·1 answer
  • A cat and dog shelter houses 23 animals that are 5 more cats than dogs y. Write and solve a system of linear equations to find t
    13·1 answer
  • 48 51 48 48 50<br><br> Find the mean
    6·2 answers
  • The formula for converting temperatures in degrees Celsius to degrees Fahrenheit is F = 95C + 32. If the temperature is 20°C, wh
    9·1 answer
  • Given g(x) = -2x – 4, find g(6).
    12·2 answers
  • Please help me as fast as you can please
    5·2 answers
  • A college graduate is considering two different companies to apply to for a job. Acme Corp lists this sample of salaries on thei
    10·1 answer
  • Zack buys some potatoes from a store. The potatoes cost $7.68 for 3 pounds. He wants to buy more vegetables, but at the same pri
    11·2 answers
  • How much will the taxi driver earn if he takes one passenger 4.8 miles in another passenger 7.3 miles explain your process
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!