<h3>
Answer: 297 square cm</h3>
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Work Shown:
Break up the figure as shown in the diagram below.
A rectangle and trapezoid form
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Area of rectangle = base*height = 9*15 = 135 cm^2
Area of trapezoid = (1/2)*(b1+b2)*h = (1/2)*(18+9)*12 = 162 cm^2
total area = (area of rectangle)+(area of trapezoid)
total area = (135) + (162)
total area = 297 square cm
Answer:
a) -4
b) +343
Step-by-step explanation:
a) 10 shares - loss $40
1 share --- ?
? = 40 / 10 = 4 decrease
b) each week 7 members increase for 49 weeks
so total increase = 7 * 49 = 343
A reseacher wants to collect a sample to learn more about the wild lemur population in Madagascar. According to this, the true statement is the reseacher can assign each lemur a number and then use a systematic sampling (option A).
Systematic sampling is a form of sampling characterized by choosing the sample at random. According to the above, random sampling is the best option for the researcher.
It is not easy to study the entire population of lemurs in Madagascar, therefore systematic sampling is ideal. In this way, the researcher can sample a few lemurs and using this probability method can draw conclusions.
According to the above, the correct answer is A. because it presents information corresponding to the situation presented.
Learn more in: brainly.com/question/24317913
Answer:
The answer to your question is: 54°F
Step-by-step explanation:
Data
Ti = 78°F
Initial hour = 2:00
Temperature drops 4°F every hour
Temperature at 8:00 = ?
Process
2:00
3:00 78-4 = 74°F
4:00 74-4 = 70°F
5:00 70-4 = 66°F
6:00 66-4 = 62°F
7:00 62-4 = 58°F
8:00 58-4 = 54°F
Answer:
x = -10
Step-by-step explanation:
-4x - 18= 22
-4x = 22 + 18
-4x = 40
x = 40/-4
x = -10
