Answer:
x = 31°
Step-by-step explanation:
All the angles given, a, 2x, and 3x, form a straight lines, so therefore, they add up to 180°. We can write an equation from the info:
a + 2x + 3x = 180°
We know a is 25°, so we can substitute that in:
25° + 2x + 3x = 180°
Combine like terms...
25° + 5x = 180°
And solve.
5x = 155°
x = 31°
Answer:
ok
Step-by-step explanation:
well thats good
Answer:
1.05 x 10 to the 8th power
Step-by-step explanation:
Answer:
18y+30y+14y+150°+142=540
62y+292=540
subtract 292 from both sides
62y= 248
divide 62
y=4°
We know that
[scale factor ]=[real]/[drawing]
[real]=[drawing]*[scale factor ]
step 1
find the real values
if the base of Riley's drawing is 10 centimeters
[real]=[drawing]*[scale factor ]--------> 10*3-------> 30 cm
the base of the triangular clock face is 30 cm
the height of Riley's drawing is 15 centimeters
[real]=[drawing]*[scale factor ]--------> 15*3-------> 45 cm
the height of the triangular clock face is 30 cm
the area of the triangular clock face is-----> 45*30/2-------> 675 cm²
the answer is the option C. 675 square centimeters
