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
OLga [1]
3 years ago
8

What is the exact value of sin(45)

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
6 0
The answer is sqrt(2)

You might be interested in
Plz help me solve this question ASAP!<br><br> R=200/(1-(1.011)^-20/0.011)
Alona [7]

R = 200 \frac{200000x 1011^{-20} -200000x1000x^{20} }{11 x 1011x^{2o} }

the X is multiplication

8 0
2 years ago
The graph of the parent function f(x) = x3 is transformed such that g(x) = f(–2x). How does the graph of g(x) compare to the gra
Anni [7]

Answer:

b) g(x) is stretched horizontally and reflected over the x-axis.

Step-by-step explanation:

The given parent function is

f(x) =  {x}^{3}

The transformed function is

g(x) = f (- 2x)

We want to see how the transformed graph compares with the parent graph.

The negation inside means all x-coordinates we're negated.

This means, there is a reflection in the y-axis.

The factor of 2 within the function means a horizontal stretch by a factor of 1/2.

The correct answer is B.

8 0
3 years ago
Read 2 more answers
1.Simplify the following Expression<br> a. 5y^2+ 3y – 13 + 6x – 3y + 6y^2
insens350 [35]

Simplified expression is 11y² + 6x - 13

Step-by-step explanation:

  • Step 1: Simplify 5y² + 3y - 13 + 6x - 3y + 6y²

5y² + 3y - 13 + 6x - 3y + 6y² = 11y² + 6x - 13

6 0
3 years ago
in a random sample of 28 people, the mean commute time to work was 31.2 minutes and the standard deviation was 7.3 minutes. assu
antoniya [11.8K]

Answer:

The margin of error of u is of 3.8.

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 28 - 1 = 27

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 27 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7707

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.7707\frac{7.3}{\sqrt{28}} = 3.8

In which s is the standard deviation of the sample and n is the size of the sample.

The margin of error of u is of 3.8.

The lower end of the interval is the sample mean subtracted by M. So it is 31.2 - 3.8 = 27.4 minutes

The upper end of the interval is the sample mean added to M. So it is 31.2 + 3.8 = 35 minutes

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

3 0
3 years ago
Evaluate 7³=7•7•7=343
ivanzaharov [21]
343=343=343
I am pretty sure this is the answer to the problem
4 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate 7 + (-4x2) for x = 0
    9·2 answers
  • Simplify and round the expression below. C isn’t necessary to answer
    12·1 answer
  • Which is true in a balanced budget? Choose exactly two answers that are correct. A. No single variable expense is greater than a
    7·1 answer
  • Write each power as a product of factors <br><br> 2^4<br> 4^2<br> 9^2<br> 8^5<br> 5^3<br> 7^3
    11·1 answer
  • What is 6,708 rounded to the nearest ten
    5·2 answers
  • Which point is NOT part of the solution of the inequality y &lt; |3x| + 1?
    9·1 answer
  • LCM of 63 and 84.<br> pleasee
    8·2 answers
  • maria had $150 in gift certificates to use in a record store.she bought fewer than 20 recordings.each tape cost $5.95 and each c
    14·1 answer
  • Which figure can be formed from the net?
    15·2 answers
  • Natasha drives at a speed of 80 miles per hour.<br> How long will it take to drive 440 miles?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!