Answer:
7) No
8) Yes
Step-by-step explanation:
Tangent lines are perpendicular to the radius lines at the point of intersection. So we just need to check if these are right triangles.
7) c² = a² + b²
20² = 12² + 14²
400 = 340
No
8) c² = a² + b²
13² = 7.8² + 10.4²
169 = 169
Yes
Log xy/4 =
log xy - log 4 =
log x + log y - log 4
Answer:
For #6 the answer is 0.079.
For # 7 the answer is 200,000
For # 8 the answer is 800000
Step-by-step explanation:
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The LCM of 6 and 4, is 12.