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
alexgriva [62]
3 years ago
10

Suppose an isosceles triangle ABC has A = 45° and b = c = 4. What is the length of a2? A.22.63

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0

Since b = c, the angles B and C also equal

 so you get
180 - 45 = 135
135/2 = =67.5 for each angle

now we know 2 sides and all 3 angles, use the law of sines to find a

b/sin B = a/sin A

4/(sin 67.5) = a/(sin 45)

a = 4(sin 45)/(sin 67.5)

a^2 = (4(sin 45)/(sin 67.5))^2

a^2 = 9.37

 Answer is C

You might be interested in
Solve for the variable in each equation.
vaieri [72.5K]
All of the answers are 0
5 0
3 years ago
The company makes a profit of 15% on every faucet sold. What is the profit on one shower faucet ?
Rama09 [41]

Answer:

Hi there!

Your answer is:

D: 18.00$

Step-by-step explanation:

First, we plug in all the numbers under the columns "Kitchen Sink", "Bathroom Sink" and "Shower" in our matrix calculator as A. Then, we plug in all the numbers under "Total Selling Price" in our matrix calc as B. Then, we perform the equation A^-1 * B. We will look to the 3rd row for this, since shower is our "z" and the third row represents z

Since profit is determined by .15 * 120, we calculate this. Your answer is 18.

Hope This Helps

<u>Edge Tested & Approved</u>

8 0
3 years ago
ILL GIVE BRANILEST PLEASE HELP!
mezya [45]

Answer:

x=60^{\circ}

Step-by-step explanation:

The angle formed by 48+x and the angle marked as 72^{\circ} are co-interior angles and therefore must be supplementary (add up to 180 degrees).

Therefore, we have:

48+x+72=180,\\x+120=180,\\x=\boxed{60^{\circ}}

7 0
3 years ago
HELP upvote brainliest Write the statement that would go in the empty box to complete the flow proof below.
Degger [83]
Here, ∠WVX = ∠WZY
& ∠W = ∠W  [ Reflexive Property ]

Triangles have the constant sum, so they would be: equal.
WVX + WXV + W = W + WZY + WYZ
WXY = WYZ   [ ∠WVX = ∠WZY ]

Now, As all the angles are equal, we conclude:
ΔXVW ≈ ΔYZW  [ By ASA Postulate ]

Hope this helps!
8 0
3 years ago
Why would I rewrite this
Ratling [72]

You are finding 3 1/6 - 1 5/6.

To solve, you should first change it so that the numerator of the first fraction is greater than the numerator of the second. Note that both have the same denominator (6). Subtract as usual:

3 1/6 = 2 7/6

2 7/6 - 1 5/6 = 1 2/6

1 2/6 is your answer.

~

7 0
3 years ago
Other questions:
  • Evaluate the given expression for x= -13<br>-7x-5<br>The answer is​
    8·2 answers
  • What is the value of X
    7·1 answer
  • Find the area of the following rectangle. length = 15 cm width = 19.5 cm. Area = ? cm2
    15·1 answer
  • Find the LCM of 12, 15, 18
    15·1 answer
  • I have some extra pts so here we go!!
    8·2 answers
  • Collin is playing a video game. He wins 25 points for each gold coin he finds. His goal is to win more than 200 points. He wants
    11·2 answers
  • The school that Billy Bob goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 3
    7·1 answer
  • Alvin is 13 years younger than Elga. The sum of their ages is 27. What is Elga's age?
    5·2 answers
  • What is the value of x in the figure?<br><br><br>Enter your answer in the box.<br><br><br>x =
    8·1 answer
  • The endpoints of segment AB are A (-8,4) and B (10,6). What are the coordinates of M, the midpoint of segment AB?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!