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ikadub [295]
3 years ago
13

Are the 2 triangles congruent? If so, what postulate did you use?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
3 0

Answer:

Step-by-step explanation:

4

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9 cm
OLEGan [10]

Answer:

∴ ∠BAD = sin^{-1}(0.2044) = 11.8°

Step-by-step explanation:

i) AD = 9 cm

ii) DC = 3 cm

iii) ∠BCD = 35°

iv) Since AB is parallel to DC and ∠ABD = 90°  then we can conclude that ∠BDC = 90°.

v) \frac{BD}{DC}  =  \frac{BD}{3\hspace{0.1cm}cm}  = tan(35) = 0.6128      ∴ BD  = 3 \times 0.6128 = 1.84 cm

vi) ∴ sin(∠ BAD ) = \frac{BD}{AD}      ⇒     sin(∠ BAD ) = \frac{1.84}{9} = 0.2044

     ∴ ∠BAD = sin^{-1}(0.2044) = 11.8°

7 0
4 years ago
Solve the following: 2(5x-3)
Otrada [13]

Answer:

The vale of x is 3/5.

Step-by-step explanation:

First you have to expand out :

2(5x - 3)

= 2(5x) - 2(3)

= 10x - 6

Next you have to solve it by adding 6 to both sides :

Let expression = 0,

10x - 6 = 0

10x - 6 + 6 = 0 + 6

10x = 6

x =  \frac{6}{10}

x =  \frac{3}{5}

6 0
3 years ago
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2. The equation y = -7x - 5 and another equation have a solution of (-2, 9). Which of the
amid [387]
The answer should be y=3x-3 hope this helps!
8 0
3 years ago
Which set of numbers includes only integers?
Bad White [126]

Answer:

the answer is D

Step-by-step explanation:

hope this helps you

5 0
3 years ago
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Mandy is thinking of a prime number that is greater than 41 and less than 47. What is many number
Sunny_sXe [5.5K]
43 is the answer hope I help
5 0
4 years ago
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