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
Dominik [7]
3 years ago
15

Sec^2 (pi/2 - x) * [sin^2 (x) - sin^4 (x)]

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer:

Explanation:

Identity:  sec2θ=1+tan2θ

sec2(π2−x)−1=1+tan2(π2−x)−1

=tan2(π2−x)

Identity: tan(π2−θ)=cotθ

=cot2x

You might be interested in
Three relationships are described below: I. The amount of fuel used on a trip increases as the size of the car increases and as
jekas [21]

Variation are of 2 types: Direct variation that states 'if x increases, y increases'. And inverse variation which states ' if x increases, y decreases and y increases x increases'.

1. The amount of fuel used on a trip increases as the size of the car increases and as the distance traveled increases. = Direct variation

2. As the number of people helping mow a lawn increases, the time it takes to mow the lawn decreases = Inverse variation

3. The cost of having a house painted increases as the size of the house increases. = Direct variation

5 0
3 years ago
Trials in an experiment with a polygraph include results that include cases of wrong results and cases of correct results. Use a
hram777 [196]

Answer and Step-by-step explanation:

This is a complete question

Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80​% of the time. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

The computation is shown below:

The null and alternative hypothesis is

H_0 : p = 0.80

Ha : p < 0.80

\hat p = \frac{x}{ n} \\\\= \frac{74}{97}

= 0.7629

Now Test statistic = z

= \hat p - P0 / [\sqrtP0 \times (1 - P0 ) / n]

= 0.7629 - 0.80 / [\sqrt(0.80 \times 0.20) / 97]

= -0.91

Now

P-value = 0.1804

\alpha = 0.01

P-value > \alpha

So, it is Fail to reject the null hypothesis.

There is ample evidence to demonstrate that less than 80 percent of the time reports that these polygraph findings are accurate.

5 0
3 years ago
PLZ HELP I WILL MARK BRAINLYIST!!!!!!!Explain the difference between a dot plot and a histogram. When would you use each graph?
mixas84 [53]

Answer:

Histograms subdivide data into intervals (bins), and use rectangles (usually columns) to show the frequency (count) of observations in each interval. ... Dot plots include ALL values from the data set, with one dot for each occurrence of an observed value from the set.

Step-by-step explanation:

histogram-Analyzing whether a process can meet the customer's requirements. Analyzing what the output from a supplier's process looks like. Seeing whether a process change has occurred from one time period to another. Determining whether the outputs of two or more processes are different.

Dot plots are used for continuous, quantitative, univariate data. Data points may be labelled if there are few of them. Dot plots are one of the simplest statistical plots, and are suitable for small to moderate sized data sets. They are useful for highlighting clusters and gaps, as well as outliers.

8 0
3 years ago
PLEEEEEEEEEEEEEEEEEEEEEEEEEAAAAAAAAAAAAAASEEEEEEEEEEE ANYONE HELP.DO A FAVOUR AND ANSWER THIS QUESTION. IT IS A SIMPLE QUESTION
adell [148]
Here's how to figure out this problem: add up all the numbers in the mark category and divide by the # of numbers there are.

So....

6 + 7 + 8 + 9 + 10 ÷ 5 = 8

8 is your final answer.
4 0
3 years ago
Graph: y-3=1/2 (x+2)
andrey2020 [161]
Here, use the app photomath.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following best describes a line? A.The set of all points in a plane that are equidistant from a given point and a g
    6·1 answer
  • 3. At a bargain store, Tanya bought 4 items that each cost the same amount. Tony bought 5 items that each cost the same amount,
    15·1 answer
  • Which table represents exponential growth?<br> :))))
    8·1 answer
  • What is 9 divided by 368
    10·2 answers
  • Which number is between pi and the square root of 14
    12·1 answer
  • 2. The German Shepard actually weighs 28 pounds. Lisa thought the
    12·1 answer
  • Consider functions f and g. f(x)=3 x+1What is the value of f(g(1))
    7·1 answer
  • M and N are whole numbers and M×N is divisible by 2. Which statement about M is True,when N is odd?​
    15·1 answer
  • Which of the following expressions is equivalent to 1/4(8 - 6x + 12)?
    14·2 answers
  • See photo, it’s got to do with Pythagoras theorem but I don’t understand. Please help
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!