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
7nadin3 [17]
3 years ago
5

Classify angle D in the figure as right, straight, acute, or obtuse.

Mathematics
1 answer:
Alika [10]3 years ago
8 0

Answer:

C.

Step-by-step explanation:

The angle D. is acute

You might be interested in
Write the given second order equation as its equivalent system of first order equations. u′′−5u′−4u=1.5sin(3t),u(1)=1,u′(1)=2.5
lakkis [162]

Answer:

hi your question options is not available but attached to the answer is a complete question with the question options that you seek answer to

Answer:  v = 5v + 4u + 1.5sin(3t),

  • 0
  • 1
  •  4
  • 5
  • 0
  • 1.5sin(3t)
  • 1
  •  2.5

Step-by-step explanation:

u" - 5u' - 4u = 1.5sin(3t)        where u'(1) = 2.5   u(1) = 1

v represents the "velocity function"   i.e   v = u'(t)

As v = u'(t)

<em>u' = v</em>

since <em>u' = v </em>

v' = u"

v'  = 5u' + 4u + 1.5sin(3t)   ( given that u" - 5u' - 4u = 1.5sin(3t) )

    = 5v + 4u + 1.5sin(3t)  ( noting that v = u' )

so v' = 5v + 4u + 1.5sin(3t)

d/dt \left[\begin{array}{ccc}u&\\v&\\\end{array}\right]= \left[\begin{array}{ccc}0&1&\\4&5&\\\end{array}\right]  \left[\begin{array}{ccc}u&\\v&\\\end{array}\right] + \left[\begin{array}{ccc}0&\\1.5sin(3t)&\\\end{array}\right]

Given that u(1) = 1 and u'(1) = 2.5

since v = u'

v(1) = 2.5

note: the initial value for the vector valued function is given as

\left[\begin{array}{ccc}u(1)&\\v(1)\\\end{array}\right]  = \left[\begin{array}{ccc}1\\2.5\\\end{array}\right]

7 0
3 years ago
in a certain county, the number of charter schools is 4 less than twice the number of alternative schools. We know that there ar
Minchanka [31]

Answer:

There are 26 alternative schools in the country

Step-by-step explanation:

Let

x------> the number of charter schools

y----->  the number of alternative schools

we know that

x=48

x=2y-4 -----> equation A

substitute the value of x in the equation A and solve for y

48=2y-4

2y=48+4

2y=52

y=26

5 0
3 years ago
A) (3,2),(2,1)<br><br> B) (3,-2),(-2,1)<br><br> C) (-3,2),(-2,-1)<br><br> D) (-3,-2),(2,-1)
bija089 [108]

Answer:

d

Step-by-step explanation:


4 0
4 years ago
Shorney Construction Company bids on projects assuming that the mean idle time per worker is 72 or fewer minutes per day. A samp
joja [24]

Answer:

Null hypothesis : H_0 = \mu \leq 72

Alternate hypothesis : H_a = \mu = 72

Step-by-step explanation:

To Find : State the hypotheses to be tested.

Solution

Mean = 72

Standard deviation = 20

N = 30

Claim : Shorney Construction Company bids on projects assuming that the mean idle time per worker is 72 or fewer minutes per day.

So, Null hypothesis : H_0 = \mu \leq 72

Alternate hypothesis : H_a = \mu = 72

7 0
4 years ago
6^2 - 7 (10 - 5 ) = ?
drek231 [11]
Your answer is 1
Hope it helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution of Log Subscript x Baseline 729 = 3?
    6·2 answers
  • EASY WILL GIVE BRAINLEIST WILL THANK YOU AND FRIEND YOU
    13·1 answer
  • The amount of data left on a cell phone plan is 6gb after 8 Days 1.5 GB of the data is used each day how much data is available
    13·2 answers
  • Solve the equation.<br><br> 6(x−2)=−18<br><br> what does x equal? Please help
    14·1 answer
  • 24 and 48 are common multiples of 4 and B. if B is a one digit number greater than 1, what is B?​
    12·1 answer
  • Sara got 98, 100, 65, 78, 98, 46, 100, 100, 45, and 50 on her reading test. Lee got 97, 67, 89, 99, 100, 45, 79, 89, 58, and 67
    5·1 answer
  • Please help<br> Solve this
    11·2 answers
  • What is the slope of the line passing through the point (2,1) and the origin ?
    15·1 answer
  • Claire is going to invest in an account paying an interest rate of 5.4% compounded daily. How much would Claire need to invest,
    10·1 answer
  • Which of the following identities is used to expand the polynomial (3x - 4y)2?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!