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1 year ago

Which of the following is a true statement

Mathematics

2 answers:

77julia77 [94]1 year ago

7 0

Answer:

11/15 < 4/5

Step-by-step explanation:

1. 5/6 = 10/12, so the first answer is not correct

2. 1/4 = 4/16, so the second answer is not correct

3. 3/4 = 9/12 and 4/6 = 8/12, so the third answer is not correct

4. 4/5 = 12/15 > 11/15, so this answer is correct

Andru [333]1 year ago

6 0

The last option!! 11/15&It:4/5

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What is the Cube of a (-99)

Arada [10]

Answer:

-970299

Step-by-step explanation:

the cube of -99 means -99 x -99 x - 99

that is: -970299

Hope this helps

4 0

3 years ago

An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 3ft long with a diameter of 2.2 ft . S

Contact [7]

4 minutes 34 seconds will takes to empty the tank, if the starts completely full and oil drained at a rate of 2.5 $ft^{3}$ per minute.

Step-by-step explanation:

The given is,

Tank is shaped like a cylinder that is 3 ft long with a diameter of 2.2 ft.

Oil drained at a rate of 2.5 $ft^{3}$ per minute.

Step:1

Time taken to dry the oil tank is,

T = $\frac{Volume of oil}{Oil drain rate}$ ....................................(1)

Step:2

Volume of the oil is,

$V = \pi r^{2} h$ .................................................(2)

Where, r - Radius of Cylinder

$r = \frac{d}{2}$

$r = \frac{2.2}{2}$

r = 1.1 ft

From eqn (1),

V = $\pi$ × $1.1^{2}$ × 3

= 11.40398 $ft^{3}$

Step:3

From equation (1)

= $\frac{11.40398}{2.5}$

= 4.56

= 4.56 minutes

T = 4 minutes 34 seconds

Result:

Time taken to dry the oil tank is 4 minutes 34 seconds, if a cylinder is 3 ft long with a diameter of 2.2 ft and oil is drained at a rate of 2.5ft^3 per minute.

4 0

2 years ago

Find the value of y so that the points (-2, 5) and (8, y) lie on a line with slope -1/5

Alja [10]

Answer:

Step-by-step explanation:

$\frac{ {3} - 5 }{8 + 2} = \frac{ - 2}{1 0} = \frac{ - 1}{5}$

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2 years ago

The perimeter of a square is 32cm. find the area

Helen [10]

Answer:

64 cm

Step-by-step explanation:

If the perimeter of a square is 32cm. Each side is the same length, and there are 4 sides. 32÷4=8

Each side equals 8. 8•8=64 The area is 64cm.

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2 years ago

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Rzqust [24]

Answer:

$\frac{14}{16}$ simplified to $\frac{7}{8\\}$

Step-by-step explanation:

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8 0

3 years ago