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Tresset [83]
3 years ago
7

HELP ME PLEASE

Mathematics
2 answers:
Ghella [55]3 years ago
4 0

Answer:

B) No, supplementary angles are either of two angles whose sum is 180 degrees.

C) Yes, the triangles are congruent because the triangles have exactly the same size and shape

Step-by-step explanation:

B) From the image below an 180 degree angle would be obtuse in which neither angle appears to be so they are not supplementary.

C) They are congruent because they are taking angles of the same angles as one another just on different sides of the shape.

andrey2020 [161]3 years ago
3 0

Answer:

<em>She is incorrect.</em>

Step-by-step explanation:

<em>ABCD is a quadrilateral. Angle C measures less than 180 degrees. The sum of the measures of two supplementary angles equals 180 degrees. The sum of the measures of angles DCA and BCA equals the measure of angle C, but angle C measures less than 180 degrees, so the angles are not supplementary.</em>

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please show work. Use a trigonometric function to find the value of x. (Round your answer to the nearest tenth).​
Tatiana [17]

Answer:

x = 12.2

Step-by-step explanation:

sin theta = opp / hypotenuse

sin 55 = 10 /x

Multiply each side by x

x sin 55 = 10

Divide each side by sin 55

x = 10 / sin 55

x =12.20774589

Rounding to the nearest tenth

x = 12.2

7 0
3 years ago
What is the length of the unknown leg of the right​ triangle? And please put the answer as a decimal
irga5000 [103]

Answer:

3.87 ft = Length of unknown side of the right triangle.

Step-by-step explanation:

Given,

Hypotenuse = 4 ft

Base = 1 ft

Altitude = x

Hypotenuse² = Base² + Altitude²

4² = 1² + x²

4² - 1² = x²

16 - 1 = x²

15 = x²

√15 ft = x

3.87 ft = x

Hope it helps ⚜

6 0
2 years ago
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I need someone to solve for the variable and show how plzz
ValentinkaMS [17]

Answer:

Step-by-step explanation:

2(x + 15)⁰ + (3x + 20)⁰=180⁰

2x + 30⁰ + 3x + 20⁰=180⁰

2x + 3x + 30⁰ + 20⁰=180⁰

5x + 50⁰ - 50⁰=180⁰-50⁰

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5x/5=130⁰/5

x=26⁰

7 0
3 years ago
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Johanna started her new job for apple incorporated. She gets paid $21 per hour and received a $250 signing bonus. Her first chec
algol [13]
The answer is 42
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6 0
3 years ago
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To the nearest hundredth, what is the length of AC¯¯¯¯¯?
lubasha [3.4K]
Use pythagorean theorum: c^2 = a^2 + b^2, where BC = c, AB = a, AC = b
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b = SR(64 - 49) = SR(15) = 3.873 = B) 3.87 units
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3 years ago
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