Ashibeddaba
Step-by-step explanation:
Answer: The missing angle is 13°
Step-by-step explanation:
Let ∠B
be the missing angle.
Let ∠A
be the angle that measures
77∘Let ∠C
the right angle that measures
90∘
The following is true of all triangles:
∠A+∠B+∠C=180∘
Express the above equation as
∠B
in terms of the other angles:
∠B=180∘−∠A−∠C
Substitute the values for ∠A and ∠C
∠B=180∘−77∘−90∘
∠B=13∘
Answer:
12
Step-by-step explanation:
Equation y=40x+420
plur in 900 to the y
900=40x+420
subtract
480=40x
divide
x=12
the penny travels at a faster rate by 56.4 kilometers
penny = 153 for 30 min
penny = 306 for 1 hour
rocket = 208 in 50 min
208/5 = 41.6 *6 = 249.6 in 1 hour
penny is faster by 56.4 kilometers
First picture:
Find x first by calculating the interior angles. Since a triangle measures 180°,
46 + 80 + x = 180
126 + x = 180
x = 180 - 126
x = 54°
Now by supplementary angle theorem (angles add up to 180°),
54° + y = 180°
y = 180° - 54°
y = 126°
Second picture:
Through Alternate Exterior angles,
x = 117°
