1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
monitta
3 years ago
15

Lisa went to the hardware store and bought 12 pieces rope. Each rope was 34 of a meter long. If the rope cost $3.50 a meter, how

much did she spend?
Mathematics
1 answer:
andrew11 [14]3 years ago
7 0
One rope = 34m
12 ropes = 34 x 12 = 408m
Total cost = $3.50 x 408 = $1428
You might be interested in
Which of the following describes the graph of y=[x-2]?
kow [346]

Answer:

What are the answer choices, if you have any?.

Step-by-step explanation:

7 0
1 year ago
...............................
enyata [817]

Answer:

addition prop of equality

Step-by-step explanation:

youre welcome

4 0
3 years ago
PLEASE SOMEONE HELP ME<br> ( There are np answer choices)
FinnZ [79.3K]

Answer:

whhhhhh

Step-by-step explanation:

it is number 2 because i took the test

3 0
2 years ago
What is the sum of the probability of drawing a green marble and the probability of not drawing a green marble?
andrey2020 [161]

Yo sup??

the answer is 1 because

P(E)+P(E')=1

where E is the event and

E' is the complement of the event

Hope this helps

3 0
3 years ago
Implicit differentiation Please help
Anvisha [2.4K]

Answer:

y''(-1) =8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Factoring

<u>Calculus</u>

Implicit Differentiation

The derivative of a constant is equal to 0

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Product Rule: \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)

Chain Rule: \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)

Quotient Rule: \frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}

Step-by-step explanation:

<u>Step 1: Define</u>

-xy - 2y = -4

Rate of change of the tangent line at point (-1, 4)

<u>Step 2: Differentiate Pt. 1</u>

<em>Find 1st Derivative</em>

  1. Implicit Differentiation [Product Rule/Basic Power Rule]:                            -y - xy' - 2y' = 0
  2. [Algebra] Isolate <em>y'</em> terms:                                                                               -xy' - 2y' = y
  3. [Algebra] Factor <em>y'</em>:                                                                                       y'(-x - 2) = y
  4. [Algebra] Isolate <em>y'</em>:                                                                                         y' = \frac{y}{-x-2}
  5. [Algebra] Rewrite:                                                                                           y' = \frac{-y}{x+2}

<u>Step 3: Find </u><em><u>y</u></em>

  1. Define equation:                    -xy - 2y = -4
  2. Factor <em>y</em>:                                 y(-x - 2) = -4
  3. Isolate <em>y</em>:                                 y = \frac{-4}{-x-2}
  4. Simplify:                                 y = \frac{4}{x+2}

<u>Step 4: Rewrite 1st Derivative</u>

  1. [Algebra] Substitute in <em>y</em>:                                                                               y' = \frac{-\frac{4}{x+2} }{x+2}
  2. [Algebra] Simplify:                                                                                         y' = \frac{-4}{(x+2)^2}

<u>Step 5: Differentiate Pt. 2</u>

<em>Find 2nd Derivative</em>

  1. Differentiate [Quotient Rule/Basic Power Rule]:                                          y'' = \frac{0(x+2)^2 - 8 \cdot 2(x + 2) \cdot 1}{[(x + 2)^2]^2}
  2. [Derivative] Simplify:                                                                                      y'' = \frac{8}{(x+2)^3}

<u>Step 6: Find Slope at Given Point</u>

  1. [Algebra] Substitute in <em>x</em>:                                                                               y''(-1) = \frac{8}{(-1+2)^3}
  2. [Algebra] Evaluate:                                                                                       y''(-1) =8
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help with any of these please ! Or<br> All I will mark brainlest
    5·1 answer
  • What is the measure of R?
    9·2 answers
  • In a class of 40 students, 15 offer physics, 20 offer history and 3 offer both physics and history. How many student offer neith
    5·2 answers
  • Being 250 meters apart, two puppies started running towards each other at the same time. The first puppy ran 1.5 meter per secon
    15·1 answer
  • PLEASE ANSWER FAST I NEED THIS! Fire in inches of 10 senior boys are 64, 65, 66, 68, 71, 72, 73, 73, 73, and 74. find the mean o
    5·1 answer
  • Please help need ASAP
    7·1 answer
  • 2. Izza walked 5 steps forward, 8 steps backward, 9 steps forward and 3 steps backward. How
    6·1 answer
  • Solve for X: square root 2x power of 2 +5 = 2
    10·1 answer
  • A researcher decides to split scores on an exam into quartiles. She determines that a score of 64 is at the 25th percentile, a s
    10·1 answer
  • How can i explain to children what the length of 2000 feet looks like to children
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!