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
qaws [65]
3 years ago
14

What is an efficient way to study for a test/exam

Mathematics
2 answers:
igomit [66]3 years ago
5 0
Take 2 hours out of your day to look over notes/ work on problems, tutoring also helps. Put yourself in a room that's silent thay way no distractions also make sure you take 5 minutes breaks so your brain doesn't overheat
frutty [35]3 years ago
5 0
Set goals for yourself and don't study it all in one day. study over a course of time and give yourself rewards when you study for a set amount of time.
You might be interested in
Use the figure.<br> What is the measure of angle 2?
zhuklara [117]

Answer:

3x+9

Step-by-step explanation:

i think since it is across from there

3 0
3 years ago
Read 2 more answers
A placebo is a substance that should elicit no positive response in an experimental subject.
adelina 88 [10]

Answer:

  A)  True

Step-by-step explanation:

In an experiment that has the purpose of testing the efficacy of a procedure or drug, comparison is made against the efficacy of a placebo, a procedure or drug that is <em>intended to have no effect whatever</em>.

__

Famously, a placebo is often found to be nearly as effective (or even more effective) than the procedure or drug on trial. This effect is known as "the placebo effect."

7 0
3 years ago
Urgent. Please show all work
myrzilka [38]

Answer:

\displaystyle f'(x) = \frac{4}{x^2}

General Formulas and Concepts:

<u>Calculus</u>

Limits

  • Limit Rule [Variable Direct Substitution]:                                                    \displaystyle \lim_{x \to c} x = c

Differentiation

  • Derivatives
  • Derivative Notation

The definition of a derivative is the slope of the tangent line:                             \displaystyle f'(x) = \lim_{h \to 0} \frac{f(x + h) - f(x)}{h}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

<em />\displaystyle f(x) = -\frac{4}{x}

<u>Step 2: Differentiate</u>

  1. [Function] Substitute in <em>x</em>:                                                                            \displaystyle f(x + h) = -\frac{4}{x + h}
  2. Substitute in functions [Definition of a Derivative]:                                   \displaystyle f'(x) = \lim_{h \to 0} \frac{-\frac{4}{x + h} - \big( -\frac{4}{x} \big)}{h}
  3. Simplify:                                                                                                        \displaystyle f'(x) = \lim_{h \to 0} \frac{4}{x(x+ h)}
  4. Evaluate limit [Limit Rule - Variable Direct Substitution]:                          \displaystyle f'(x) = \frac{4}{x(x+ 0)}
  5. Simplify:                                                                                                        \displaystyle f'(x) = \frac{4}{x^2}

∴ the derivative of the given function will be equal to 4 divided by x².

---

Learn more about derivatives: brainly.com/question/25804880

Learn more about calculus: brainly.com/question/23558817

---

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

Unit: Differentiation

6 0
2 years ago
For an outdoor concert by the city​ orchestra, concert organizers estimate that 19 comma 000 people will attend if it is not rai
My name is Ann [436]
<h2>Answer:</h2><h2>The expected number of people who will attend this concert = 2260</h2>

Step-by-step explanation:

The concert organizers estimate people will attend if it is not raining = 19000

If its raining people will attend = 4000

On the day of the​ concert, meteorologists predict a 90​% chance of rain.

This means 10 % chance of not raining

The expected number of people = 90% (4000) + 10% (19000)

   = 360 + 1900

  = 2260

The expected number of people who will attend this concert = 2260

4 0
3 years ago
Find the value of 7 then what is the value of the expression -3b2+25
Mice21 [21]
-147 +25 = 122 i am pretty sure this is right but i might be wrong

6 0
3 years ago
Other questions:
  • At a gymnastics meet, twenty gymnasts compete for first, second, and third place. How many ways can first, second, and third pla
    15·2 answers
  • -7x − 3x + 2 = −8x – 8 .<br><br> SHOW WORK!!!
    13·2 answers
  • I WILL GIVE YOU SO MANY POINTS IF YOU SOLVE THIS AND BRAINLIY PLEASEEEEE ASAPPPPPP USE THE LINK IN YOURE BROWSER AND SOLVE BY TY
    6·1 answer
  • K = {(-3, -3), (-4, -4), (-5, -5), (-6, -6)} Is K a function and why? No, there is a limited number of ordered pairs in this lis
    15·1 answer
  • Karen began reading a book. After 1 hour of reading, she was o
    10·1 answer
  • Help me please, I need ASAP!!!
    12·1 answer
  •   Express 35.4% as a decimal.
    15·2 answers
  • Given f(x) = 2 sin x, find the exact value of f (7pi/6) in simplest form with a rational denominator.​
    8·1 answer
  • Palindrome numbers are numbers that read the same foward or backward. Here are some palindrome numbers: 11, 121, 75257, and 1234
    15·1 answer
  • Evaluate 5x when x = -5.<br> *help plsss*
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!