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
Dafna1 [17]
3 years ago
9

What is the measure of AngleM? °

Mathematics
2 answers:
Deffense [45]3 years ago
6 0

Answer:

50

Step-by-step explanation:

i know what i know

Crazy boy [7]3 years ago
3 0
Answer: 50 degrees

Explanation: Triangles add up to 180 degrees. So you take 180-72-58 to figure out what the missing angle is.
You might be interested in
What is the interquartile range of the data set? {48, 50, 65, 60, 80, 42, 45, 50, 42, 55, 45}
MissTica
Order the number:
42,42,45,45,48,50,50,55,60,65,80

Mean:50
Quartile 1:45
Quartile 3:60

60-45=15. As a result, the interquartile range is 15. Hope it help!
5 0
3 years ago
Read 2 more answers
The work of a student to solve a set of equations is shown below: m=8+2n; 4m=4+4n. Solve by elimination
nadya68 [22]

Answer:

Step-by-step explanation:

4(8+2n) = 4 + 4n

32 + 8n = 4+4n

4n = -28

n = -7

4 0
3 years ago
Necesito las respuestas
Stels [109]

Answer:

I need it in English please so I can helps

3 0
1 year ago
Solve y ' ' + 4 y = 0 , y ( 0 ) = 2 , y ' ( 0 ) = 2 The resulting oscillation will have Amplitude: Period: If your solution is A
Vlad [161]

Answer:

y(x)=sin(2x)+2cos(2x)

Step-by-step explanation:

y''+4y=0

This is a homogeneous linear equation. So, assume a solution will be proportional to:

e^{\lambda x} \\\\for\hspace{3}some\hspace{3}constant\hspace{3}\lambda

Now, substitute y(x)=e^{\lambda x} into the differential equation:

\frac{d^2}{dx^2} (e^{\lambda x} ) +4e^{\lambda x} =0

Using the characteristic equation:

\lambda ^2 e^{\lambda x} + 4e^{\lambda x} =0

Factor out e^{\lambda x}

e^{\lambda x}(\lambda ^2 +4) =0

Where:

e^{\lambda x} \neq 0\\\\for\hspace{3}any\hspace{3}\lambda

Therefore the zeros must come from the polynomial:

\lambda^2+4 =0

Solving for \lambda:

\lambda =\pm2i

These roots give the next solutions:

y_1(x)=c_1 e^{2ix} \\\\and\\\\y_2(x)=c_2 e^{-2ix}

Where c_1 and c_2 are arbitrary constants. Now, the general solution is the sum of the previous solutions:

y(x)=c_1 e^{2ix} +c_2 e^{-2ix}

Using Euler's identity:

e^{\alpha +i\beta} =e^{\alpha} cos(\beta)+ie^{\alpha} sin(\beta)

y(x)=c_1 (cos(2x)+isin(2x))+c_2(cos(2x)-isin(2x))\\\\Regroup\\\\y(x)=(c_1+c_2)cos(2x) +i(c_1-c_2)sin(2x)\\

Redefine:

i(c_1-c_2)=c_1\\\\c_1+c_2=c_2

Since these are arbitrary constants

y(x)=c_1sin(2x)+c_2cos(2x)

Now, let's find its derivative in order to find c_1 and c_2

y'(x)=2c_1 cos(2x)-2c_2sin(2x)

Evaluating    y(0)=2 :

y(0)=2=c_1sin(0)+c_2cos(0)\\\\2=c_2

Evaluating     y'(0)=2 :

y'(0)=2=2c_1cos(0)-2c_2sin(0)\\\\2=2c_1\\\\c_1=1

Finally, the solution is given by:

y(x)=sin(2x)+2cos(2x)

5 0
3 years ago
The price of a shirt was $38. It was reduced by 20% and then again by 10%.
Arturiano [62]
A) 38*(1-20%)*(1-10%)=27.36
b)38*(1-30%)=26.6
c)Because in question one when you take off the 10% it is 10% of the already off price but when you take off 30% it is taking off from the original price
4 0
3 years ago
Read 2 more answers
Other questions:
  • A Statue cast a shadow 25 feet long a boy standing next to the statues 4.5 feet tall and casts a shadow that is 3.6 feet long ho
    12·1 answer
  • Ashley’s math average decreased 12 points to 78. Then she completed an extra credit assignment and raised her final average by 5
    13·3 answers
  • 5) For this problem, convert and solve forx: logy 4096 = x
    14·1 answer
  • Twenty pounds of a salt-water solution contains fifteen percent salt. How much salt is in the water?
    11·1 answer
  • A sequence of transformations was applied to an equilateral triangle in a coordinate plane. The transformations used were rotati
    14·1 answer
  • Please Help will give Brainliest!!
    15·1 answer
  • Grace has $500 in her bank
    6·1 answer
  • Correct answer gets brainliest
    5·1 answer
  • Monisha is comparing f(x) = |x| and g(x) = |2x-4|. She said the graph of g is a horizontal translation of the graph of f 4 units
    6·1 answer
  • 12. A shoebox has a volume of 456 cm3 and a mass of 114 g. What is its<br> density?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!