Shell, an energy company, creates very long range forecasts about energy. The oil and gas businesses require large upfront investments against long-term paybacks. They want to understand the risks to those paybacks. This is called

Budgeting

Explanation:

Budgeting is the process of balancing your expenses and income. It involves creating a spending plan that allocates income effectively to different activities of an entity.

Creating a budget help in meeting set objectives of a business by assigning funds to the most relevant activities per time.

In this scenario the oil and gas businesses require large upfront investments against long-term paybacks.

So they need to create very long range forecasts about energy in order to understand the risk from these paybacks.

This is called budgeting

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.

c

explanation: