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Nana76 [90]
2 years ago
13

Shown below is a trapezium, name a line perpendicular to AD.​

Mathematics
1 answer:
kramer2 years ago
6 0

Answer:

answer is yesterday was thrusdays

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To create a giant gemstone, sara first made two identical square pyramids that each had a base area of 100 square inches. Then s
inysia [295]

Answer:

8 inches.

Step-by-step explanation:

From the statement we have that they first made two identical square pyramids, each with a base area of 100 square inches.

Ab = s ^ 2 = 100

Therefore each side would be:

s = (100) ^ (1/2)

s = 10

So, side of the square base = 10 inches

Then they tell us that they glued the bases of the pyramids together to form the precious stone. The surface area of the gemstone is 520 square inches, so for a single pyramid it would be:

Ap = 520/2 = 260

For an area of the square pyramid we have the following equation:

Ap = 2 * x * s + s ^ 2

Where x is the height of each triangular surface and s is the side of the square base

Replacing we have:

260 = 2 * x * 10 + 10 ^ 2

20 * x + 100 = 260

20 * x = 160

x = 160/20

x = 8

Therefore, the value of x is 8 inches.

5 0
3 years ago
At the same rate, how many miles did she bike in the next 15 minutes?
mamaluj [8]
Distance = speed* time
D= constant rate *1/4 miles/hour
8 0
3 years ago
-(-8)= can someone please solve this? Is a fill in the blank.
butalik [34]

Answer:

8

Step-by-step explanation:

when multiplying two negative, it turn into a positive.

7 0
3 years ago
Read 2 more answers
A rectangular locker is 1 4/5feet long, 1 4/5 feet wide, and 1 foot tall.The locker has a capacity of BLANK
alexandr1967 [171]
V=xyz where x,y,z are the three dimensions...

V=(1 4/5)(1 4/5)1

V=(9/5)(9/5)=81/25

V=3 6/25 ft^3
3 0
3 years ago
Multiply.round your answer to the nearest tenth 3×2.5×1.05. A.7.9 B.8.0 C.11.25 D.11.3
dangina [55]
3 x 2.5 = 7.5
7.5 x 1.05 = 7.8750

Note : remember to always line up the decimal points.

Hope this helps

7 0
3 years ago
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