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3 years ago

Please help this is due in 10 minutes!!!

Mathematics

1 answer:

Mandarinka [93]3 years ago

7 0

Answer:

3053.63 un³

Step-by-step explanation:

Hello!

The diameter is 18, so the radius is half of the diameter, or 9.

Using the volume of a sphere formula: $\frac43\pi r^3$

Solve:

$\frac43\pi r^3$
$\frac43\pi *9^3$
$\frac43*729\pi$
$972\pi$
3,053.6280592893 ≈ 3,053.63

The volume is 3053.63 un³.

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I need help with this one too if anyone can show me step by step

gladu [14]

Answer:

D) 2x^2 + 11x^3 + 12x^2 - 10x - 8

Step-by-step explanation:

you multiply each term of the first expression with each term of the second expression and add all the terms

so start with x^2 * 2x^2 = 2x^4

x^2 * 3x = 3x^3

x^2 * -4 = -4x^2

4x * 2x^2 = 8x^3

at this point it's clear that the correct answer is D but we can continue

4x * 3x = 12x^2

4x * -4 = -16x

4x^2

-8

by adding

2x^2 + 11x^3 + 12x^2 - 10x - 8

4 0

3 years ago

Ms. Hawkinson is planning to take more pictures of her students. She bought 8 rolls of film and 2 camera batteries for $23.00. T

charle [14.2K]

Answer:

1 Roll = $2.50

1 Battery = $1.50

Step-by-step explanation:

From the question we know that,

8 Rolls + 2 Batteries = $23, and

6 Rolls + 2 Batteries = $18

We can subtract the two equations to obtain a third equation,

(8 Rolls + 2 Batteries) - (6 Rolls + 2 Batteries) = $23 - $18

(8 - 6) Rolls + (2 - 2) Batteries = $23 - $18

2 Rolls = $5

Divide RHS and LHS by 2, to obtain the cost of a roll,

2 Rolls / 2 = $5 / 2

1 Roll = $2.50

If one roll costs $2.50 then 6 rolls cost $15,

6 x $2.50 = $15

We plug in this value into the second equation,

$15 + 2 Batteries = $18

Subtract both sides by $15,

$15 + 2 Batteries - $15 = $18 - $15

2 Batteries = $3

Divide RHS and LHS by 2 to obtain the final answer,

2 Batteries / 2 = $3 / 2

1 Battery = $1.50

7 0

3 years ago

How do u simplify 3/30

sukhopar [10]

$\bf \cfrac{3}{30}\implies \cfrac{3\cdot 1}{3\cdot 10}\implies \cfrac{3}{3}\cdot \cfrac{1}{10}\implies 1\cdot \cfrac{1}{10}\implies \cfrac{1}{10}$

8 0

4 years ago

Sam has $0.85 in nickels( 0.05) and dimes (0.10) she has 2 more nickels than dimes. How many nickels and dimes does she have?

Arisa [49]

Sam has 5 dimes and 7 nickles

8 0

4 years ago

On March 1, 2022, Carla Vista Co. acquired real estate, on which it planned to construct a small office building, by paying $79,

const2013 [10]

Answer:

Cost of the land = $90,900

Step-by-step explanation:

Cash Paid for the construction = $79,000

Cost of demolition of the old warehouse = $8,000

Salvage (i.e Proceeds from the salvaged materials) = $1,660

Additional Expenditure before construction began

Attorney's fee = $1,160

Real estate broker's fee = $4,400

Architect's fee = $8,660 ( Note that this will be capitalized to building cost)

Driveways and parking lot = $13,800 ( Note that this is capitalized to land improvements)

Sum of additional expenditure = Attorney's fee + Real estate broker's fee

Sum of the additional expenditure = 1160 + 4400

Sum of the additional expenditure = $5,560

Cost of the land = Cash paid + cost of demolition + Additional expenditure - salvage

Cost of the land = 79000 + 8000 + 5560 - 1660

Cost of the land = $90,900

3 0

3 years ago

Read 2 more answers