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3 years ago

Describe a situation that can be modeled by the expression \large x-8.

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

7 0

Step-by-step explanation:

ok please before we can solve that you have to tell more about that thing before you can answer so I'm waiting for you to edit the text and said that thing very well so that we can understand and answer you correctly

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HELPP PLZ DONT SEND A FILE WHATS THE ANWERS ASAP

Archy [21]

Answer: 2450.44 ft

Step-by-step explanation:

Formula for SA of a cylinder: A=2*pi*r*h+2*pi*r^2

Formula for radius: diameter/2

Plug height, 17, radius, 13, and pi, 3.14, into the formula above.

= 2450.44 ft

3 0

3 years ago

Determine the value of k

KATRIN_1 [288]

Answer:

$\displaystyle k = 6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Functions
Function Notation

Algebra II

Piecewise Functions

Calculus

Limits
Continuity

Step-by-step explanation:

Step 1: Define

Identify

Continuous at x = 2

$\displaystyle f(x) = \left \{ {{2x^2 \ if \ x < 2} \atop {x + k \ if \ x \geq 2}} \right.$

Step 2: Solve for k

Definition of Continuity: $\displaystyle \lim_{x \to 2^+} 2x^2 = \lim_{x \to 2^-} x + k$
Evaluate limits: $\displaystyle 2(2)^2 = 2 + k$
Evaluate exponents: $\displaystyle 2(4) = 2 + k$
Multiply: $\displaystyle 8 = 2 + k$
[Subtraction Property of Equality] Subtract 2 on both sides: $\displaystyle 6 = k$
Rewrite: $\displaystyle k = 6$

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Limits - Continuity

Book: College Calculus 10e

4 0

3 years ago

Read 2 more answers

at the dog show, there are 4 times as many boxer as spaniels. if there are a total of 30 dogs, how many dogs are spaniel?

Lyrx [107]

Firstly, given this information there could be 25 labradors and poodles and only 4 boxers and 1 spaniel. However, assuming that there are only boxers and spaniels at the dog show the first thing to do is to divide 30 by 5 = 6 so the answer is, There are 6 spaniels.

5 0

3 years ago

Please answer for points and brainlyest:3

elena-s [515]

Answer:

60w <--------- Equation

Step-by-step explanation:

For number 2 the answer is $900

5 0

3 years ago

Read 2 more answers

X = cos(2t) and y = sin(2t) Find the second derivative

Elodia [21]

Dy/dx = (dy/dt) / (dx/dt)
dy/dt = 2cos(2t)
dx/dt = -2sin(2t)

dy/dx = 2cos(2t)/-2sin(2t) = -cot(2t)

d^y/dx^2 = d(-1/tan(2t))/dx = (tan(2t) * 0 - (-1)*2sec^2(2t))/tan^2(2t) = 2sec^2(2t)/tan^2(2t) = 2csc^2 (2t)

3 0

3 years ago