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vladimir1956 [14]
3 years ago
10

1 is the first odd number. It is also the first square number and the first cube number.

Mathematics
1 answer:
Vlad [161]3 years ago
5 0

Answer:

a. third odd number = 5

third square number = 9

third cube number = 27

Answer is the third cube number.

b. sixth odd number = 11

fourth square number = 16

second cube number = 8

Answer is the fourth square number.

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At 55 mph it will take you approximately _____ feet to stop the car. A. 5 feet B. 100 feet C. 228 feet
ololo11 [35]

Answer:

The correct answer is option C, 228 feet

Step-by-step explanation:

As per Newton’s third law of motion:

V2 – U2 = 2 x a x S

Where V = final velocity

U = Initial Vlocity

a = acceleration (-ve)

S= distance travelled

V= 0 mph

U= 55 mph = 80.6667 ft /sec

0 – (80.6667 ft /sec)2 = 2 x (-g/2) x S

S = (80.6667 ft /sec)2 /(32.2 feet per second per second x0.5)

S = 202.1 feet

So the most nearest option is option C

6 0
2 years ago
A rectangle has an area of 40,if the length and width are doubled. What is the new area ?
sweet [91]

Answer:

160

Step-by-step explanation:

e.g. 5×8 --> 10×16 =160

4×10 --> 8×20 =160

2×20 --> 4×40 =160

4 0
2 years ago
Read 2 more answers
12. Find the surface area of each figure to the nearest tenth.
Zolol [24]

Answer:

  12a. 471.2 cm²

  12b. 60 m²

Step-by-step explanation:

Part A.

The surface area of each figure is the sum of the end area and the lateral area.

  <u>cylinder</u>

  S = (2)(πr²) +2πrh = 2πr(r +h)

  S = 2π(5 cm)(5 cm +10 cm) =150π cm² ≈ 471.2 cm²

__

  <u>triangular prism</u>

  S = (2)(1/2)bh + PL . . . . b=triangle base; h=triangle height; P=triangle perimeter; L=length of prism

  S = (4 m)(1.5 m) + ((4 + 2·2.5) m)(6 m) = (6 + 54) m² = 60 m²

_____

Part B.

Surface area is useful in the real world wherever products are made from sheets of material or wherever coverings are applied.

Carpeting or other flooring, paint, wallpaper are all priced in terms of the area they cover, for example.

The amount of material used to make containers in the shapes shown will depend on the area of these containers (and any material required for seams).

6 0
2 years ago
There are 24 grapes. Luke eats 6 grapes from the bowl. Then Juan and Luke equally shared the grapes that are left.
Luden [163]

Answer:

Juan and Luke each ate 9 grapes

Step-by-step explanation:

24 - 6 = 18

18 ÷ 2 = 9

7 0
2 years ago
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Ingrid dug a trench 18/20 of a meter long. The next day she dug 9/20 of a meter more of the trench. What is a reasonable estimat
lutik1710 [3]
Omg sorry i don’t really know i hope someone answers your question
6 0
3 years ago
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