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
Rufina [12.5K]
3 years ago
9

Trigonometry. I can't figure it out. ​

Mathematics
1 answer:
Ber [7]3 years ago
6 0

You also seem to be given that m\angle ADC=50^\circ, according to the diagram.

In triangle ABC, we have

\cos\angle CAB=\dfrac39=\dfrac13\implies m\angle CAB=m\angle CAD=\cos^{-1}\dfrac13

By the law of sines,

\dfrac{\sin\angle ADC}{AC}=\dfrac{\sin\angle CAD}{CD}

\implies CD=\dfrac{(9\,\mathrm{cm})\sin\left(\cos^{-1}\frac13\right)}{\sin50^\circ}\approx11.1\,\mathrm{cm}

You might be interested in
Which pair of expressions is equivalent?
hodyreva [135]
T is the first one bc it is just look it up
6 0
4 years ago
Read 2 more answers
Based on census data, the population of Freedonia is modeled by the function P ( t ) = 325 t^2 + 28547 people, where t represent
navik [9.2K]

Answer:

dP/dt = 650t = 650(2 ) = 1,300 people/year

The rate of increasing of population at the end of the year 1992 is 1,300 people/year

Step-by-step explanation:

Given;

Population function as;

P(t) =325 t^2 + 28547

The rate of change of the population dP/dt at any given time can be given as;

Rate = change in population/change in time = dP/dt

dP/dt = 2×325t = 650t

Therefore, after 1992;

t = 1992-1990 = 2years

dP/dt = 650t = 650(2 ) = 1,300 people/year

The rate of increasing of population at the end of the year 1992 is 1,300 people/year

5 0
4 years ago
Solve: 3(2d - 1) – 2d = 4(d– 2) + 5
FrozenT [24]

<em>The</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em><u>No</u></em><em><u> </u></em><em><u>solution</u></em><em><u>.</u></em>

<em><u>Look</u></em><em><u> </u></em><em><u>at</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>attached</u></em><em><u> </u></em><em><u>picture</u></em>

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>you</u></em>

6 0
3 years ago
What are two characteristics of a good line of best fit?
FromTheMoon [43]

Answer:

A line of best fit is a straight line drawn through the maximum number of points on a scatter plot balancing about an equal number of points above and below the line

Step-by-step explanation:

7 0
4 years ago
Give the most accurate name for this figure
anyanavicka [17]

Answer:

Equilateral Triangle

geometric shapes equilateral triangle

Equilateral triangles have all angles equal to 60° and all sides equal length.

All equilateral triangles have 3 lines of symmetry.

Isoscles Triangle

Isosceles triangle

Isosceles triangles have 2 angles equal and 2 sides of equal length.

All isosceles triangles have a line of symmetry.

Scalene Triangle

scalene triangle

Scalene triangles have no angles equal, and no sides of equal length.

Right Triangle

right triangle or right angled triangle

Right triangles (or right angled triangles) have one right angle (equal to 90° ).

Obtuse Triangle

obtuse triangle

Obtuse triangles have one obtuse angle (an angle greater than 90° ). The other two angles are acute (less than 90° ).

Acute Triangle

acute triangle

Acute triangles have all angles acute.

Only cause i dont see a figure

8 0
3 years ago
Other questions:
  • What is the answer? 6^2(2/5 +5)-3
    14·1 answer
  • 1 + 16n2 =17<br> solve the equation by using square roots
    14·2 answers
  • How do you determine if two triangles are similar?
    15·2 answers
  • Evaluate:<br><br> 4<br> ———- + 2 <br> -3 + 5
    10·1 answer
  • Write a proportion to find the value of each x
    6·1 answer
  • I suck at math
    10·1 answer
  • The difference of m and 7 increased by 15 in algebra
    7·1 answer
  • Can you guys help me please!
    10·1 answer
  • Can someone help me pls
    5·2 answers
  • Simplify the following expression completely using distribution and combining like terms
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!