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
11111nata11111 [884]
3 years ago
6

Can anyone help pleas:>

Mathematics
2 answers:
s2008m [1.1K]3 years ago
8 0

Answer:

5

Step-by-step explanation:

plug -3 into x then the negative to turns the -3 into positive 3 then add 2, which equals 5

Citrus2011 [14]3 years ago
7 0

Answer:

5

Step-by-step explanation:

you are replacing x with -3

so step by step:

-(-3) + 2

3 + 2

5

You might be interested in
If p represents the original price, which of the following expressions could be used to calculate the sale price of a shirt that
dezoksy [38]

Answer:

C & D

Step-by-step explanation:

You can do these two ways. You can multiply the cost of the the shirt by 15% (.15 as a decimal.) and then subtract that answer from the original price of the shirt to get the sales price of the shirt.

You can also multiply the price of the shirt by 85% (.85 as a decimal) and that will give you the sales price without having to subtract. 15% + 85% = 100%, so 85% represents the sales price of the shirt.

Anyway, since you multiply, you can eliminate choice A & B.

Since the direction in the question says to select all that apply, I would check both C & D.

C is the equation of the first way I talked about- Price - 15% * price

C       p - 0.15p

D is the equation of the second way I talked about. Price times 85%

D            0.85p

7 0
3 years ago
Find the derivative of ln(cosx²).​
RoseWind [281]

Answer:

\displaystyle \frac{dy}{dx} = -2x \tan (x^2)

General Formulas and Concepts:

<u>Calculus</u>

Differentiation

  • Derivatives
  • Derivative Notation

Basic Power Rule:

  1. f(x) = cxⁿ
  2. f’(x) = c·nxⁿ⁻¹

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

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

\displaystyle y = \ln (\cos x^2)

<u>Step 2: Differentiate</u>

  1. Logarithmic Differentiation [Derivative Rule - Chain Rule]:                       \displaystyle y' = \frac{(\cos x^2)'}{\cos x^2}
  2. Trigonometric Differentiation [Derivative Rule - Chain Rule]:                   \displaystyle y' = \frac{-\sin x^2 (x^2)'}{\cos x^2}
  3. Basic Power Rule:                                                                                         \displaystyle y' = \frac{-2x \sin x^2}{\cos x^2}
  4. Rewrite [Trigonometric Identities]:                                                              \displaystyle y' = -2x \tan (x^2)

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

Unit: Differentiation

8 0
3 years ago
A car travels 420 miles in 6 hours. What is the unit rate?
Semmy [17]

Answer:

70

Step-by-step explanation:

because 70 times 6 equals 420

3 0
3 years ago
Which of the following are true about regression with one predictor variable (often called "simple regression")? Check all that
AfilCa [17]

Answer:

<h3>A. The slope describes the amount of change in Y for a one-unit increase in X .</h3><h3>B. The regression equation is the line that best fits a set of data as determined by having the least squared error.</h3>

Step-by-step explanation:

In statistics, linear regression is a analysis we do to describe the relationship between two variables. With this study, we pretend to know if there's a positive or negative correlation between those variables, if that correlation is strong or weak.

In a linear regression analysis, we modeled the data set using a regression equation, which is basically the line that best fits to the data set, this line is like the average where the majority of data falls. That means choice A is right.

When we use linear equations, we need to know its characteristics, and the most important one is the slope, which is the ratio between the dependent variable and the independent variable. Basically, the slope states the unit rate between Y and X, in other words, it states the amount of Y per unit of X. That means choice B is correct.

Therefore, the correct answers are A and B.

4 0
3 years ago
Explain why the prices were the same in 13 and 14
kifflom [539]

Answer:

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A policy for $100-deductible collision insurance for a 3-year-old full-size car with a Class 2A driver,
    9·1 answer
  • Factor completely.
    15·1 answer
  • The area of a rectangular wall of a barn is 140 square feet. Its length is 6 feet longer than twice its width. Find the length a
    9·1 answer
  • One x-intercept for a parabola is at the point
    6·1 answer
  • an iPad was on sale for 3/4 of its original price. if the original price was 1000 what was the sale price?
    5·1 answer
  • Anyone know the answer will give brainliest if correct.
    9·2 answers
  • Emily gives her bird 1/8 cup of bird seeds along with 1/3 cup of grains each day. How much food is given each day to the bird
    7·1 answer
  • The director of special events for Sun City believed that the amount of money spent on fireworks displays for the Fourth of July
    7·1 answer
  • PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST to the first person
    6·1 answer
  • In a survey of 500 people, 31% said they were afraid of flying. What decimal represents the number of people who said they were
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!