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2 years ago

Write two verbal expressions for 2d

2 answers:

5 0

. 2 verbal expression of 2d
Verbal expressions in mathematics is the translation of the given mathematical equation or numbers into words. For example the verbal expression of operations are:
+ = addition
- = subtraction
/ - division
x = multiplication

In the given number of 2d, these are the two verbal expression:
2d => 2 times d; or 2 multiply by d
2d => the product of 2 and d
Verbal expression are the words translation of mathematical equations.

kupik [55]2 years ago

3 0

. . . the product of two and d

. . . two multiplied by d

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2 years ago

Find the amount of empty space within a cylinder containing three solid spheres, where each sphere has a radius of 3 cm. (Volume

aalyn [17]

Answer : The correct option is, (A) $54\pi cm^3$

Step-by-step explanation :

First we have to calculate the volume of cylinder.

Formula used:

Volume of cylinder = $\pi r^2h$

where,

r = radius = 3 cm

h = height = 18 cm (We are assuming that 3 solid spheres stacked to each other = 3 × diameter of each sphere = 3 × 2 × 3 = 18)

Volume of cylinder = $\pi (3cm)^2\times (18cm)$

Volume of cylinder = $162\pi cm^3$

Now we have to calculate the volume of 3 solid spheres.

Formula used:

Volume of 3 spheres = $3\times \frac{4}{3}\pi r^3$

Volume of 3 spheres = $4\pi r^3$

Volume of 3 spheres = $4\pi (3)^3$

Volume of 3 spheres = $108\pi cm^3$

Now we have to calculate the amount of empty space within a cylinder.

Amount of empty space within a cylinder = Volume of cylinder - Volume of 3 spheres

Amount of empty space within a cylinder = $162\pi cm^3-108\pi cm^3$

Amount of empty space within a cylinder = $54\pi cm^3$

Therefore, the amount of empty space within a cylinder is, $54\pi cm^3$

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3 years ago

Find the mean of the data in the bar chart below.

nadezda [96]

Answer:

2.5

Step-by-step explanation:

First, you have to add them all up:

1 + 4 + 2 + 3 = 10

Now, since there is 4 PEOPLE, you have to divide it by 4.

10 / 4 = 2.5

And there you go, the answer is 2.5

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2 years ago

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3 years ago

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What is the approximate value of 2π-√3? A. 0.14 B. 0.28 C. 3.28 D. 4.55 E. 4.78

vladimir1956 [14]

Answer:

The correct answer is D. 4.55

Step-by-step explanation:

1. Let's check the information given to resolve the question:

What is the approximate value of 2π-√3?

2. Replacing the equation with the values:

π = 3.1416

√3 = 1.7321

2π-√3

2 (3.1416) - 1.7321 = 6.2832 - 1.7321 = 4.5511

4.55 (Rounding to two decimal places)

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2 years ago

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