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
murzikaleks [220]
3 years ago
11

How do i solve this?​

Mathematics
1 answer:
Alina [70]3 years ago
8 0

Answer:

m∠R = 60°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA  
  • [Right Triangles Only] sinθ = opposite over hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Identify</u>

Angle θ = ∠R

Opposite Leg of ∠R = 10√3

Hypotenuse = 20

<u>Step 2: Solve</u>

  1. Substitute in variables [sine]:                                                                         \displaystyle sin(R^\circ) = \frac{10\sqrt{3}}{20}
  2. [Equality Property] Trig inverse:                                                                    \displaystyle R^\circ = sin^{-1}(\frac{10\sqrt{3}}{20})
  3. Evaluate trig:                                                                                                   \displaystyle R = 60^\circ
You might be interested in
What is the value of arcsin1/2<br><br> Please show all work thx
almond37 [142]

Answer:

The Answer is 0.785398163 rad

Step-by-step explanation:

5 0
3 years ago
Which of the following is the correct equation for the distance formula for the points (x1, y1) and (x2,y2)?
svp [43]

Answer:

  A. D=sqrt( (x2-x1)^2+(y2-y1)^2 )

Step-by-step explanation:

The distance between two points is the root of the sum of the squares of the differences in their corresponding coordinates. The equation of choice A is the usual formulation.

__

<em>Comment on answer choices</em>

Because the square of a number is the same as the square of its opposite, the formula in choice D is also correct.

4 0
3 years ago
Suppose triangle bca is congruent to triangle ecd. which statement is not necessarily true?
natali 33 [55]
Answer is <span>a) line BC is congruent to line CD

this is not true

BC should be </span>congruent to line EC, not CD
5 0
3 years ago
David rolls a number cube fifty times. The number 4 comes up twelve times. The number 3 comes up eight times. What is the experi
Maurinko [17]

Answer:

40%.

Step-by-step explanation:

Prob( Rolling a 4) = 12/50

Prob( Rolling a 3) = 8/50

When the combined probabilities contain  an 'OR' we Add the probability values:

Probability of a 3 or a 4  

= 12/50 + 8/50

= 20/50

= 2/5

= 40%.

5 0
3 years ago
Read 2 more answers
Question 11-(3 marks available)
klasskru [66]

Answer: 1080 cm^{2}

Determine the values of b1, b2, and b3, the sides of the triangular base. Also determine the value of h, the height of the triangular base and l, the length of the prism (the length between the bases).

The sides of the triangular base are:

b1 = 13 in.

b2 = 14 in.

b3 = 15 in.

The triangular base is a right triangle, and so the height is one of our sides. We will use

h = 12 in.

The length of the prism is

l = 20 in.

total surface area = bh + (b1+b2+b3)*l

bh = 12*20 = 240 cm^{2}

l * (b1+b2+b3) = 20*(13 + 14+ 15) = 840 cm^{2}

TSA = bh + l * (b1 + b2 + b3) = 240 + 840 = 1080 cm^{2}

to know more about prism,

brainly.com/question/16128664

5 0
1 year ago
Other questions:
  • Find the point, M, that divides segment AB into a ratio of 5:6 if A is at (0, 22) and B is at (11, 0). A) (5, 12) B) (5, 11) C)
    11·2 answers
  • Calculate the area of a circle with radius of 6m
    6·1 answer
  • Why is 1+(-5) equal to -4
    9·1 answer
  • #1 Combine like terms (AlgebraTiles) 3y2+3y2 #2 -3x2-3x2 #3 X2-3x2
    10·1 answer
  • The figure shows a person estimating the height of a tree by looking at the top of the tree with a mirror. Assuming that both th
    12·2 answers
  • Complete the formulas for surface area and volume of a cube, where a is the length of an edge
    7·1 answer
  • What is the missing leg length
    10·2 answers
  • A jar contains 25 gray, 7 pink, and 22 orange marbles. A marble is drawn at random.<br> P(not gray).
    9·1 answer
  • Find the value of x.
    14·2 answers
  • PLEASE HELP<br><br> Which line segment is a radius of K?<br> A) EH<br> B) FG<br> C) DK<br> D) KH
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!