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Butoxors [25]
3 years ago
8

In right triangle ABC, ∠C is a right angle and sin A = sin B. Solve for m∠A.

Mathematics
2 answers:
bekas [8.4K]3 years ago
4 0
A triangle's angles all add up to 180 degrees. Since it's stated in the answer that angle C is a right angle, which is 90 degrees, and the other two angles are equal, the other two must be 45 degrees.
The answer is B.
malfutka [58]3 years ago
3 0
The best and most correct answer among the choices provided by your question is the second choice or letter A. The measures of both angles would be 45 degrees.

If A = B = 45 degrees
Therefore, sin (45) = sin (45) = sqrt(2)/2
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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The diameter of a circular tablecloth is 72 inches. Find the area and circumference. Use 3.14 as an approximation for pi.
nalin [4]

Answer:

Part 1) The area is A=4,069.44\ in^{2}

Part 2) The circumference is C=226.08\ in

Step-by-step explanation:

step 1

Find the area

we know that

The area of a circle (circular tablecloth) is equal to

A=\pi r^{2}

we have

r=72/2=36\ in ------> the radius is half the diameter

\pi =3.14

substitute

A=(3.14)(36)^{2}

A=4,069.44\ in^{2}

step 2

Find the circumference

we know that

The circumference of a circle (circular tablecloth) is equal to

C=\pi D

we have

D=72\ in

\pi =3.14

substitute

C=(3.14)(72)

C=226.08\ in

5 0
3 years ago
Solve the following system of equations algebraically:<br> y = x^2+7x−4 <br> y = −x−4
oksian1 [2.3K]
Y = x² + 7x - 4
y = -x - 4

x² + 7x - 4 = -x - 4
      + x       + x
x² + 8x - 4 = -4
           + 4  + 4
     x² + 8x = 0
x(x) + x(8) = 0
    x(x + 8) = 0
x = 0  or  x + 8 = 0
                   - 8  - 8
                     x = -8

      y = -x - 4
      y = -0 - 4
      y = 0 - 4
      y = -4
(x, y) = (0, -4)
         or
       y = -x - 4
       y = -(-8) - 4
       y = 8 - 4
       y = 4
 (x, y) = (-8, 4)

The solutions are (0, -4) and (8, -4).
7 0
3 years ago
Read 2 more answers
Teje ratio of adulta to children attedening a new exhibit at the museum was found 8:5 based on this ratio if 390 people attended
Ratling [72]
8x - adults
5x - children

8x+5x=390\\&#10;13x=390\\&#10;x=30\\\\&#10;5x=5\cdot30=150
8 0
3 years ago
Lucia has 50 sports cards she has 20 football cards 10 baseball card 15 basketball card and five hockey cards a single card is s
Ket [755]
The probability that the card is a football card is 20 out of 50 or 40%
the probability that the card is a basketball card is 10 out of 50 or 20%
4 0
3 years ago
Read 2 more answers
Is n÷12=36,n=108 true or false​
maksim [4K]

Answer:

False

Step-by-step explanation:

n÷12=36

n=36*12

hence n=432

hope it helps you and give me a brainliest

4 0
2 years ago
Read 2 more answers
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