Answer:
230.3cm^2
Step-by-step explanation:
surface area: sum of all faces
base: 12 x 2.5 = 30cm^2
back: 84 cm ^2
cross section x 2 = 7 x 2.5 = 17.5
use Pythagoras theorem to find the width of slope: 7^2 + 2.5^2 = 49 + 6.25 = 55.25. square root of 55.25 = 7.4
so, area of slope : 7.4 x 12 = 88.8cm^2
sum of all areas: 114 + 106.3 = 230.3
Answer:
ABCD ⇒ AB = 6 cm , AD = 1 cm
EFGH ⇒ EF = 5 cm , EH = 2 cm
IJKL ⇒ IJ = 3 cm , IL = 4 cm
Step-by-step explanation:
∵ The perimeter of the rectangle = 14 cm
∴ Length + width = 14/2 = 7
∴ The two sides can be :
1 , 6 ⇒ p = 2(1 + 6) = 14 cm
2 , 5 ⇒ p = 2(2 + 5) = 14 cm
3 , 4 ⇒ p = 2(3 + 4) = 14 cm
The drawing in the attached file
Answer:
her first step should be to multiply the coefficient of the first term by the constant 1 • -3 = -3
Step-by-step explanation:
i looked it up on tiger algebra lol
Using sampling concepts, it is found that the correct option regarding if this is a random sample is given by:
Yes, because the slips of paper were all the same shape and size.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
In this problem, since the slips have the same shape and size, each name has an equal probability of being chosen, hence it is a random sample and the correct option is:
Yes, because the slips of paper were all the same shape and size.
More can be learned about sampling concepts at brainly.com/question/25122507
Answer:
C. Urea. The correct answer is Urea.
Step-by-step explanation:
