Explain how bacteria are both helpful and harmful to out bodies

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?