3 years ago

Which comparison below is a true statement

Mathematics

1 answer:

Alinara [238K]3 years ago

7 0

C is the true statement

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The equation cos super negative 1 (StartFraction 3.4 Over 10 EndFraction)equals x can be used to determine the measure of angle

Dmitriy789 [7]

Answer:

70 degrees

Step-by-step explanation:

$cos^{-1} \frac{3.4}{10}=x$

This implies that: $cos x= \frac{3.4}{10}$ Recall: $cos x=\frac{adjacent}{hypotenuse}$

From the diagram

Angle CAB, $x=cos^{-1} \frac{3.4}{10}=70.1 degrees$ =70 (to the nearest degree)

6 0

4 years ago

Read 2 more answers

Help please!!!

vaieri [72.5K]

We know that In right angle triangle c^2 = a^2 + b^2.
19^2 = 3^2 + b^2
b = (361 - 9)^1/2 = 18.761663039294
Now for angles
sin(A) = a/c = 3/19
A = sin{-1}(3/19) = 9.0847202873911
A = 9.0847202873911
sin(B) = b/c = 18.761663039294 / 19
B = sin{-1}(18.761663039294 / 19) = 80.915279712614
B = 80.915279712614

8 0

3 years ago

Please a,b,c ko answer plz plz plz

Ahat [919]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Pleade help will give brainiest answer!!!

luda_lava [24]

❤hey mate❤

it took 6 trials to get the answet

thanx...