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
elena55 [62]
3 years ago
6

If StartFraction pi Over 2 EndFraction less than t less than pi ​, which of the following is​ true?

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0

Answer:

b. cosine t less than 0 and cotangent t greater than 0

Step-by-step explanation:

We have the following relation

\frac{\pi }{2} < t

if we apply the cosine function in the relation we get:

cos\frac{\pi }{2}

-1

the cosine of t is between 0 and -1 then (cosine t less than 0)

If we now apply cotangent function in the relation:

cotan\frac{\pi }{2}

0

This means that cotang is greater than 0, therefore the correct answer is b. cosine t less than 0 and cotangent t greater than 0

You might be interested in
there are 4 sections of seats I the playhouse theatre. each section has 7 groups of seats.each group has 25 seats. how many seat
Nady [450]
To find the number of seats, let's do it using multiplication!

First, to see how many seats are in one big section of the theatre, multiply 7 groups of seats by 25 seats:

7 x 25 = 175

Now, knowing this, multiply 175 by 4 to get the total number of seats in the theater!

175 x 4 = 700

Therefore, there are 700 seats in the theatre.

Hope this helps!
3 0
3 years ago
Here are two steps from the derivation of the quadratic formula,
BaLLatris [955]

Answer:

A

Step-by-step explanation:

Taking the square root of both sides.

8 0
3 years ago
How do you the equation of the line that passes through point (-3,2) and is parallel to the line formed by the equation y = 4x +
hjlf

Answer:

y = 4x + 14

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 4x + 7 ← is in slope- intercept form

with slope m = 4

• Parallel lines have equal slopes , then

y = 4x + c ← is the partial equation

to find c substitute (- 3, 2 ) into the partial equation

2 = - 12 + c ⇒ c = 2 + 12 = 14

y = 4x + 14 ← equation of parallel line

3 0
2 years ago
Read 2 more answers
Independent random samples of vehicles traveling past a given point on an interstate highway have been observed on monday versus
quester [9]
Hi! 

To compare this two sets of data, you need to use a t-student test:

You have the following data:

-Monday n1=16; <span>x̄1=59,4 mph; s1=3,7 mph

-Wednesday n2=20;  </span>x̄2=56,3 mph; s2=4,4 mph

You need to calculate the statistical t, and compare it with the value from tables. If the value you obtained is bigger than the tabulated one, there is a statistically significant difference between the two samples.

t= \frac{X1-X2}{ \sqrt{ \frac{(n1-1)* s1^{2}+(n2-1)* s2^{2} }{n1+n2-2}} * \sqrt{ \frac{1}{n1}+ \frac{1}{n2}} } =2,2510

To calculate the degrees of freedom you need to use the following equation:

df= \frac{ (\frac{ s1^{2}}{n1} + \frac{ s2^{2}}{n2})^{2}}{ \frac{(s1^{2}/n1)^{2}}{n1-1}+ \frac{(s2^{2}/n2)^{2}}{n2-1}}=33,89≈34

The tabulated value at 0,05 level (using two-tails, as the distribution is normal) is 2,03. https://www.danielsoper.com/statcalc/calculator.aspx?id=10

So, as the calculated value is higher than the critical tabulated one, we can conclude that the average speed for all vehicles was higher on Monday than on Wednesday.



5 0
3 years ago
Explain how you would show 135% on a 10-by10 grid
dangina [55]
You would shade in 135 of the squares in the grid(s)
8 0
3 years ago
Other questions:
  • The __________ of a circle is the part of a circle bounded by two radii and an arc. circumference interior angle sector
    15·2 answers
  • Kai wrote the number 85 on the board. Is 85 prime or composite? Explain
    5·1 answer
  • Suppose that iq scores have a bell shaped distribution the average iq of students in a particular state 3309 class is 100 with s
    9·1 answer
  • Noam solved the equation for k using the following calculations.
    10·2 answers
  • The ratio of the lengths of the sides of a triangle ABC is 3:4:6. M, N, and K are the midpoints of the sides. Perimeter of the △
    9·1 answer
  • A company's board of directors wants to form a committee of 2 of its members. There are 5 members to choose from. How many diffe
    8·1 answer
  • Blank subtract 3/8 equals to 3/4
    14·1 answer
  • 2. Use the figure to decide the type of angle pair that describes &lt;5 and &lt;6
    15·2 answers
  • a person runs 5000 feet in 9 minutes. What is the person's speed, in the feet per minute, to the nearest hundred?
    13·1 answer
  • Please Help! 10 extra points if the answer is correct.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!