3 years ago

Find size of angle BAC

1 answer:

3 0

Answer:

i think the answer is 31°c

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olasank [31]

$a\equiv2\pmod7$
$b\equiv5\pmod7$

$a+a\equiv2+2\equiv4\pmod7$

$a+b\equiv2+5\equiv7\equiv0\pmod7$

$3a\equiv6\pmod7$

$2b\equiv10\equiv3\pmod7$

7 0

3 years ago

zlopas [31]

Answer:

Step-by-step explanation

4 0

3 years ago

White raven [17]

Answer:

$343.66m$

Step-by-step explanation:

Consider the diagram attached

|AC| is the length of the radio transmission tower

If the wire is attached 13 feet from the top, at point B, |BC|=177cm and the wire is attached at point D on the ground

In Triangle BCD,

$Sin \alpha = \frac{|BC|}{|BD|}$

$Sin 31 = \frac{177}{|BD|}$

Cross multiplying

$|BD| X sin 31 = 177\\|BD|=\frac{177}{Sin 31} =343.66m$

5 0

4 years ago

Bogdan [553]

Check the picture below.

6 0

3 years ago

Romashka-Z-Leto [24]

Y=-3/2 + ?

21/2=-3/2 + ?
-?= -3/2-21/2
-?= -24/2
-?=-12
?=12

The equation is y=-3/2x + 12

4 0

4 years ago