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3 years ago

What is the circumference of the circle use 3.24 for pi

Mathematics

1 answer:

never [62]3 years ago

5 0

Step-by-step explanation:

Formula:

d×3.14=C

r×3.14×2=C

d=diameter

r=radius

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Please help i'm stuck and it's a unit test if correct i will give brainiest

garri49 [273]

Answer:

d. n≤5

Step-by-step explanation:

This is the answer

8 0

2 years ago

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What is 3 3/5 ÷ 1 4/5 =

Marysya12 [62]

Answer:

Step-by-step explanation:

3 3/5 : 1 4/5= 2/1 = 2

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3 years ago

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The library has thirteen

dybincka [34]

Answer:

If the shelves are 4/5 full, then the total number of books in the library is 1,040 books

Step-by-step explanation:

13 roll of bookcases

All the bookcases have four shelves

Total number of shelves = 4 x 13

= 52 shelves

Each shelve holds 25 books each

Total number of books that can be in the shelves altogether = 52 x 25

= 1,300 books

If the shelves are 4/5 full, then the total number of books in the library is,

4/5 x 1300

= 1,040 books

5 0

2 years ago

What is the value of 36x-8y^2 when x=3 and y= -6?

Zepler [3.9K]

Answer:

-6 gets canceled out because it gets squared. When you square a number, you multiply it by itself. Any negative number times a negative number results in a positive number. So instead of -36 its just 36

7 0

2 years ago

What is the largest possible integral value in the domain of the real-valued function

kotegsom [21]

Answer:

Max Value: x = 400

General Formulas and Concepts:

Algebra I

Domain is the set of x-values that can be inputted into function f(x)

Calculus

Antiderivatives
Integral Property: $\int {cf(x)} \, dx = c\int {f(x)} \, dx$
Integration Method: U-Substitution
[Integration] Reverse Power Rule: $\int {x^n} \, dx = \frac{x^{n+1}}{n+1} + C$

Step-by-step explanation:

Step 1: Define

$f(x) = \frac{1}{\sqrt{800-2x} }$

Step 2: Identify Variables

Using U-Substitution, we set variables in order to integrate.

$u = 800-2x\\du = -2dx$

Step 3: Integrate

Define: $\int {f(x)} \, dx$
Substitute: $\int {\frac{1}{\sqrt{800-2x} } } \, dx$
[Integral] Int Property: $-\frac{1}{2} \int {\frac{-2}{\sqrt{800-2x} } } \, dx$
[Integral] U-Sub: $-\frac{1}{2} \int {\frac{1}{\sqrt{u} } } \, du$
[Integral] Rewrite: $-\frac{1}{2} \int {u^{-\frac{1}{2} }} \, du$
[Integral - Evaluate] Reverse Power Rule: $-\frac{1}{2}(2\sqrt{u}) + C$
Simplify: $-\sqrt{u} + C$
Back-Substitute: $-\sqrt{800-2x} + C$
Factor: $-\sqrt{-2(x - 400)} + C$

Step 4: Identify Domain

We know from a real number line that we cannot have imaginary numbers. Therefore, we cannot have any negatives under the square root.

Our domain for our integrated function would then have to be (-∞, 400]. Anything past 400 would give us an imaginary number.

7 0

3 years ago