Which intersection forms a circle?

a plane intersects only one nappe of a double-napped cone, and the plane is perpendicular to the generating line of the cone.

a plane intersects only one nappe of a double-napped cone, and the plane is parallel to the generating line of the cone.

a plane intersects only one nappe of a double-napped cone, and the plane is perpendicular to the axis of the cone.

a plane intersects both nappes of a double-napped cone, and the plane does not intersect the vertex.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69