In 1870 the average ground temperature in paris was 11.8°c. since then it has risen at a nearly constant rate, reaching 13.5°c in 1969.
(a) express the temperature t (in °c) in terms of time t (in years), where t = 0 corresponds to the year 1870 and 0 ≤ t ≤ 99.

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "