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kicyunya [14]
2 years ago
5

Geometry Proof - please help ASAP

Mathematics
1 answer:
DanielleElmas [232]2 years ago
4 0

Answer:

  • If angle C is 90 degrees (def. of right angle) then the sum of angle A and B has to 90 degrees since angle A + B + C (90°) = 180°

Statements and Reasons:

3. Angle C is 90 degrees because of the definition of right angle.

4. Angle A + angle B + angle C is 180 degrees because of triangle sum.

5. Angle A + angle B + 90 = 180 because of substitution postulate.

6. Angle A + angle B is 90 degrees because of subtraction postulate. (subtract 90 from both sides from the equation above this step).

7. Angle A and angle B are complementary.

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Sin 60° x tan 45° what is that is for a homework
Ugo [173]

Answer:

75 degrees

Step-by-step explanation:

60 = 45= 75 = 180

Because every triangle has 180 degrees in it

6 0
2 years ago
a jar contains 133 pennies. a bigger jar contains 1 2/7 times as many pennies. what is the value of the pennies in the bigger ja
ivann1987 [24]
Multiply\ 1\frac{2}{7}\ times\ pennies\ in\ jar\\\\
 1\frac{2}{7}*133=\frac{9}{7}*133=\frac{1197}{7}=171\\\\
In\ the\ bigger\ jar\ there\ are\ 171\ pennies.
6 0
3 years ago
Which value, in order, will complete the table? ​
tia_tia [17]
Answer: The answer is the first choice.

Explanation:

Because you must find the sin of the x values in the table.

Sin(7pi/6) = -1/2

Sin(5pi/4) = -sqrt 2/2

Sin(4pi/3) = -sqrt 3/2
4 0
3 years ago
Triangle DNO has vertices at D(5, 8), N(– 3, 10), and O(– 3, 6). If vertex D is translated 4 units to the right, the best name f
prisoha [69]

Using distance between two points to find the lengths of the edges of the triangle, the correct option is:

b. Isosceles

The distance between two points, (x_1,y_1) and (x_2,y_2), is given by:

d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Vertex D is translated 4 units to the right is (9,8).

The lengths of the edges are:

DN = \sqrt{(9 - (-3))^2 + (8 - 10)^2} = \sqrt{12^2 + 2^2} = \sqrt{148}

DO = \sqrt{(9 - (-3))^2 + (8 - 6)^2} = \sqrt{12^2 + 2^2} = \sqrt{148}

NO = \sqrt{(-3 - (-3))^2 + (10 - 6)^2} = \sqrt{0^2 + 4^2} = 4

<u>Two edges of the same length</u>, hence, it is an isosceles triangle, given by option b.

You can learn more about distance between two points at brainly.com/question/18345417

6 0
2 years ago
Solve the system of equations for x using elimination. 3x-2y=8<br> 2x+2y=7
jonny [76]
Answer is: x=3

Add the two equations together to eliminate y from the system.
Then divide each term by 5 and simplify.
5 0
3 years ago
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