1. (0-3= -3, -3- (-6) =-9
Answer:
Smaller angle: 69 degrees
Larger angle: 111 degrees
Step-by-step explanation:
Supplementary angles= two angles that make up 180 degrees
x = smaller angle
x + x + 42 = 180 Add like terms
2x + 42 = 180 Subtract 42 on both sides
2x = 138 Isolate the variable by dividing 2 on both sides
x = 69
x = smaller angle, 69 degrees
x + 42 = larger angle, 111 degrees
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Answer:
45 dogs and 52 cats.
Step-by-step explanation:
45+7=52
Let "a", "b" and "с" be sides of the triangle ("с" is the longest side). The triangle will be:
right if a² + b² = c²
аcute if a² + b² > c²
obtuse if a² + b² < c²
We have a=10, b=14 and c=18
a² + b² = 10² + 14² = 100 + 196 = 296
and
c² = 18² = 324
296 < 324 ⇒ obtuse triangle.
If this is what you meant...