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Paul [167]
3 years ago
11

Is -cos(x) the same as cos(-x)?

Mathematics
1 answer:
miss Akunina [59]3 years ago
6 0

Answer:

Not the same

Because if it derives, it will be positive and the other negative

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identify all of the central angles. please help me asap. i have to have this done soon! :( thann you so much!​
vova2212 [387]

Answer:

see explanation

Step-by-step explanation:

Central angles are angles at the centre of the circle subtended by 2 radii

Angles that meet this criteria are

∠AOB, ∠BOC, ∠AOC

8 0
3 years ago
Which of the following summations represent the series shown? Check all that apply.
Afina-wow [57]

Answer: 80

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is an example of a quantitative variable?
egoroff_w [7]

Answer:

C) A person's height, recorded in inches

Step-by-step explanation:

Quantitative Variable:

  • A quantitative variable is a variable which can be measured and have a numeric outcome.
  • That is the value of variable can be expressed with numbers.
  • Foe example: age, length are examples of quantitative variables.

A) The color of an automobile

The color of car is not a quantitative variable as its outcome cannot be measured and expressed in value. It is a categorical variable.

B) A person's zip code

Some variables like zip codes take numerical values. But they are not considered quantitative. They are considered as a categorical variable because average of zip codes have no significance.

C) A person's height, recorded in inches

Height is a qualitative variable because it can be measured and its value is expressed in numbers.

5 0
4 years ago
PLSSSSSS HELPPPP PLSSSS 15 POINTSSSS ILL SENDD 20 MORE IF U HELPPPP PLSSSSSSSS
Helen [10]

Answer:

1 is B

2 is B

3 is stream line body and fluke both help in swimming and both are independent envolved that is their ancestors don't match

Step-by-step explanation:

8 0
3 years ago
At the end of 2006, the population of Riverside was 400 people. The population for this small town can be modeled by the equatio
andriy [413]

The correct format of the question is

At the end of 2006, the population of Riverside was 400 people. The population for this small town can be modeled by the equation below, where t represents the number of years since the end of 2006 and P represents the number of people. P = 400 ( 1.2 )^ t Based on this model, approximately what was the increase in the population of Riverside at the end of 2009 compared to the end of 2006?

(A) 291

(B) 691

(C) 1040

(D) 1440

Answer:

The increase in the population at the end of 2009 is 291 people

Step-by-step explanation:

We are given the equation as P = 400 ( 1.2 )^ t

where

P = No of People

t= No of Years

it is given that in the year 2006 the population is 400

this will only happen when we take t= 0

so for

Year    value of t

2006-    t = 0

2007-    t  = 1

2008-    t = 2

2009     t = 3

No of people in 2009 will be

P = 400(1.2)^3

     = 400*1.728

   P  = 691.2

Since the equation represents no of people so it can't be in decimals, Therefore the population will be 691

Increase = P(2009) - P(2006)

               = 691 - 400

                = 291

The increase in the population at the end of 2009 is 291 people.

4 0
3 years ago
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