Which of the following transformations maps an isosceles trapezoid onto itself?
a) A 180° rotation around the point of intersection of the diagonals
(b) A reflection with respect to the midsegment of the trapezoid
(c) A 90° rotation around a base vertex
(d) A reflection with respect to the perpendicular bisector of a base
(e) All of these are correct.
(d) A reflection with respect to the perpendicular bisector of a base
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Solve the problem.Roberto invested some money at 8%, and then invested $3000 more than twice this amount at 11%. His total annual income from the interest was $3930. How much was invested at 11%?
A. $27,000 B. $9000 C. $24,000 D. $2700
The growth rate G, in thousands per year, of a certain population depends on the number N, in thousands, of individuals present. The relationship is
.
?
A: Make a graph of growth rate versus population size.
?
B: What population level results in a maximum growth rate? What is that maximum growth rate?
Round your answers to two decimal places.
?
C: When population demands exceed available resources, a population decline can be expected. What population levels would result in a declining population? Round your answer to two decimal places.
What will be an ideal response?
If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(1, -3) (1, 1) (4, 3)
A. 6 B. 2.5 C. 12 D. 5
Multiply. Write the answer in lowest terms.2 ? 
A. 
B. 
C. 
D. 