2 years ago

Chất nào sau đây là muối dung hòa CH

1 answer:

S_A_V [24]2 years ago

8 0

How is this a math question lol ?

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jasenka [17]

D because i did this alreadyyy

5 0

2 years ago

Annette [7]

Answer:

tan (48°19'23'') => 1.1232

Step-by-step explanation:

60' minutes are present in a degree, and 60 * 60' seconds are present in a degree;

48°19'23'' = 48 + 19/60 + 23/3600

= $\frac{172800}{3600}+\frac{1140}{3600}+\frac{23}{3600}$

= $\frac{172800+1140+23}{3600}$

= $\frac{173963}{3600}$ = 48.323°

tan(48.323°) = 1.1232

4 0

2 years ago

irakobra [83]

Answer:

a. dbc = 66, ABC = 132

b. abd = 52, dbc= 52

Step-by-step explanation:

just remember that bisects means that the angles on either side of the middle line are equal. so for a, dbc = abd and ABC = 2x 66

for b, abd and dbc are equal, so both of them are just 104 divide by two

6 0

2 years ago

Setler79 [48]

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8 0

2 years ago

kherson [118]

Answer:

Step-by-step explanation: 180- 135

5 0

2 years ago