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2 years ago

What is the surface area of a sphere with radius 2?

1 answer:

8 0

$\textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=2 \end{cases}\implies \begin{array}{llll} SA=4\pi (2)^2\implies SA=16\pi \\\\\\ SA\approx 50.27 \end{array}$

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Kaiden deposited $6200 into a savings account for which interest is compounded weekly at a rate of 2.77%.

scoray [572]

A=p(1+i/m)^mn
A=6,200×(1+0.0277÷52)^(52×8)
A=7,737.59
Interest earned=7737.59-6200=1537.59

5 0

3 years ago

What is the slope of a line containing (4,6) and (0,8)?

AlladinOne [14]

Answer:

$m=\frac{-1}{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (4, 6)

Point (0, 8)

Step 2: Find slope m

Substitute: $m=\frac{8-6}{0-4}$
Subtract: $m=\frac{2}{-4}$
Simplify: $m=\frac{-1}{2}$

3 0

2 years ago

Read 2 more answers

The admision fee at a basket ball game is 350$ for children and 750$ for adults. On a certain night,1500 people enter the basket

Hoochie [10]

Note: The only way to solve this problem is by adjusting the fees to $3.50 and $7.50.

Answer:

1300 children attended the basketball game

Step-by-step explanation:

System of Equations

Let's call:

x = number of children attending the basketball game

y = number of adults attending the basketball game

On a certain night, 1500 people enter the game, thus:

x + y = 1500 [1]

Since each admission fee for children cost $3.50 and $7.50 for adults and it was collected $6050, thus:

3.50x + 7.50y = 6050 [2]

From [1]:

y = 1500 - x

Substituting in [2]:

3.50x + 7.50(1500 - x) = 6050

Operating:

3.50x + 11250 - 7.50 = 6050

-4x = 6050 - 11250

Solving:

x = 1300

1300 children attended the basketball game

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3 years ago

Question 4*

inessss [21]

Answer:

Step-by-step explanation:

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2 years ago

What is the equivalent distance of 60,000 centimeters in kilometers?

ruslelena [56]

Answer60

Step-by-step explanation:

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2 years ago