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
LiRa [457]
3 years ago
8

Find cos(0) Please help

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0

Answer:

cos o=base /hypotenuse=EF/DF

c.is your answer

You might be interested in
Please help me with this question i need the answer asap
Nataly [62]

D) Function A is non-linear and Function B is linear.

5 0
3 years ago
Read 2 more answers
A study investigating the relationship between age and annual medical expenses randomly samples 400 individuals in a city. It is
ICE Princess25 [194]

Answer:

The probability is 0.789

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\sigma = 16, n = 400, s = \frac{16}{\sqrt{400}} = 0.8

Find the probability that the mean age of the individuals sampled is within one year of the mean age for all individuals in the city.​

Using \mu = 30, this is the pvalue of Z when X = 31 subtracted by the pvalue of Z when X = 29. So

X = 31

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{31 - 30}{0.8}

Z = 1.25

Z = 1.25 has a pvalue of 0.8944

X = 29

Z = \frac{X - \mu}{s}

Z = \frac{29 - 30}{0.8}

Z = -1.25

Z = -1.25 has a pvalue of 0.1056

0.8944 - 0.1056 = 0.7888

Rounded to three decimal places, 0.789

The probability is 0.789

4 0
3 years ago
Read 2 more answers
What is the answer to the measure of angle A?
rosijanka [135]
Answer: 110
(WORK SHOWN BELOW)

6 0
2 years ago
PLEASE HELP ITS MY TRIMESTER TEST MY MOM WILL KILL ME IF I FAIL! <3 WILL MARK BRAINLIST!
Artyom0805 [142]

Answer:

r =2.9985yd

Step-by-step explanation:

Given that the circumference of a circle is 2\pir

where r is the radius and \pi = 3.1415926....

You have

2\pir = 18.84 yd

2(3.1415926)r = 18.84 yd

6.2831r = 18.84yd

divide through by 6.2831

r = 2.9985yd = aprox 3yds

7 0
3 years ago
5. Point A is 3 units directly below (2, 2). What are the coordinates of point A? Answer: Point A (___)​
fiasKO [112]
A is (2, -1)

The X axis will not change since A is not going left or right of (2,2). You would count down 3 spaces for the y-axis and that would land you at -1 or you could solve by subtraction.

2-3= -1
3 0
1 year ago
Other questions:
  • -8+9+5z+7x uses z=3 and x=5
    11·2 answers
  • I need help with number 7
    10·2 answers
  • What is 69,000 rounded to the nearest hundred
    6·2 answers
  • The table shows the height of different plants in inches.
    14·1 answer
  • Find y prime if arctan(xy) = 1 + (x^2*y)
    13·1 answer
  • paul needs to find the number of people in his gymnasium who want the gym hours to be extended till late night. which of the fol
    5·1 answer
  • What is 1+1+343342342252525? i have no idea what it is sjhdgd
    10·1 answer
  • The table shows the ratio of tables to chairs in a classroom.
    9·1 answer
  • In this figure, 12.2% of the area is painted blue.
    11·1 answer
  • What is the completely factored form of x2 – 16xy 64y2? xy(x – 16 64y) xy(x 16 64y) (x – 8y)(x – 8y) (x 8y)(x 8y)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!