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
12345 [234]
2 years ago
5

D

Mathematics
1 answer:
Anestetic [448]2 years ago
7 0

Answer:

D. 1

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

<u>Algebra I </u>

  • Function Notation

<u>Pre-Calculus </u>

  • Unit Circle

<u>Calculus </u>

  • Derivatives
  • Derivative Notation
  • Derivative of tan(x) = sec²(x)

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\frac{d}{dx} [tan(x)]\\x = \pi<u />

<u />

<u>Step 2: Differentiate</u>

  1. Differentiate:                    \frac{d}{dx} [tan(x)] = sec^2(x)

<u>Step 3: Evaluate</u>

  1. Substitute in <em>x</em>:                    sec^2(\pi)
  2. Evaluate:                              1
You might be interested in
What is the solution to the system of equations. 2x+4y=12. Y=1/4x-3
larisa86 [58]
2/7 not sure but that's what i got 
5 0
3 years ago
I need to know how to get the answer and what the answer is
Vedmedyk [2.9K]
(Can't really explain it... hopefully these steps can help you.. maybe I'm just too lazy..)

2h^3j^-3k^4
-----------------
3jk

2h^3k^4
= -------------
3j^4k


2h^3k^3
= --------------
3j^4
8 0
3 years ago
I need help with number 9.<br> simple algebra.
Veseljchak [2.6K]

Answer:

C 1099

Step-by-step explanation:

The volume of a cylinder is given by

V = pi * r^2 *h

We know the radius is 5 and the height is 14

Substitute in what we know

V = 3.14 * 5^2 *14

V = 3.14 *25*14

V =1099  in^3

4 0
3 years ago
For the first 80 miles of her road trip, Lina travels 10 miles/hour slower than she did for the remaining 50 miles of her trip.
Contact [7]

The expressions represent the total time of her trip in hours is\rm \dfrac{80}{s} + \dfrac{50}{s+10}.

Given that,

For the first 80 miles of her road trip, Lina travels 10 miles/hour slower than she did for the remaining 50 miles of her trip.

It represents Lina's  speed during the first part of her trip.

We have to determine,

Which expressions represent the total time of her trip in hours?

According to the question,

Let the speed traveled during the first part of the trip be "s".

The formula for calculating the distance is expressed as:

\rm Distance = Speed \times Time

For the first part of the journey:

Distance = 80 miles

Time = \rm t_1

And Speed = s

Substitute all the values in the formula,

\rm Distance = Speed \times Time\\\\80 = s \times t_1\\\\ t_1= \dfrac{80}{s}

For the second part of the trip;

Distance traveled = 50 miles

Speed = s + 10 (10miles/hour faster than the first part of the trip)

time = \rm t_2

Substitute all the values in the formula,

\rm Distance = Speed \times Time\\\\50 = (s+10) \times t_2\\\\ t_2 = \dfrac{50}{s+10}

Therefore,

Adding both the time to represent the total time of her trip in hours,

\rm = t_1 +t_2 \\\\ = \dfrac{80}{s} + \dfrac{50}{s+10}

Hence, The required expressions represent the total time of her trip in hours is\rm \dfrac{80}{s} + \dfrac{50}{s+10}.

For more details refer to the link given below.

brainly.com/question/21043759

6 0
2 years ago
Find the number of ways to purchase 3 different kinds of drinks from a selection of 10 drinks.
Genrish500 [490]
The correct answer is 120.
3 0
3 years ago
Other questions:
  • Find the equation of a line that is perpendicular to y = (1/6)x + 4 and passes through the point (3, 8).
    7·2 answers
  • 4 out of 9 dogs weigh less than 20 pounds what is the decimal equivalent to the number of dogs weighing under 20 lb
    12·1 answer
  • Combine like terms. 5/6x - 2/3x A. 1/6x B. 1/3x C. 1/2x D. x
    7·1 answer
  • 3y+6(3y-2) = 2(y-1)-7<br><br> solve for y , reduce answer to integer or fraction.
    10·2 answers
  • Is ten a perfect square
    13·1 answer
  • F(n)=2n-5 ;find f (-8)
    12·2 answers
  • Harry got 42 out of 49 correct in his test.<br> What fraction of the marks did he get wrong?
    13·2 answers
  • (-9) ÷(-2)=? Please help​
    10·2 answers
  • What is the point-slope form of a line that has a slope of 3 and passes through point (1, 4)?
    12·1 answer
  • The mystery number (x) has been ordered with these numbers <br> 9723654 9852000 x 10000000
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!