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
gavmur [86]
2 years ago
8

Pls answer this . my answer choices are A)20/21 , B)20/29 , C)21/20 , and D)21/29

Mathematics
1 answer:
Dmitry [639]2 years ago
3 0
It’s C)21/20 because for tan you do the opposite side over the adjacent. SOHCAHTOA (sin: opposite/hypotenuse cos: adjacent/hypotenuse tan: opposite/adjacent)
You might be interested in
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What pr
konstantin123 [22]

Answer:

2.28% of tests has scores over 90.

Step-by-step explanation:

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.

In this problem, we have that:

\mu = 80, \sigma = 5

What proportion of tests has scores over 90?

This proportion is 1 subtracted by the pvalue of Z when X = 90. So

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

Z = \frac{90 - 80}{5}

Z = 2

Z = 2 has a pvalue of 0.9772.

So 1-0.9772 = 0.0228 = 2.28% of tests has scores over 90.

8 0
3 years ago
Find the difference in simplest form. <br> 2b/b^2-2b+1 - 2/b^2-2b+1
kolezko [41]
1) factor the denominators: 2b/(b-1)2 - 2/ (b-1)2
2) MAKE SURE YOU HAVE A COMMON DENOMINATOR
3) combine the numerators: 2b-2/(b-1)2
4) distribute 2 from numerator: 2(b-1)/(b-1)2
5) simplify; answer is 2/(b-1)

7 0
3 years ago
Solve for x: −2x + 5 &lt; 7
hoa [83]
-2x + 5 < 7

-2x + 5 < 7
<u>        -5     -5   </u>       deduct 5 from both sides
-2x       < 2
<u>÷ -2        ÷ -2  </u>       divide both sides by negative 2. Because of the division 
 x          > -1          using a negative number, the sign is then reversed.
                             from < it becomes >.

The value of x should be greater than -1. It can be 0, 1, 2, so on... 

To check: Revert back to the original sign which is <.

x = 1
-
2x + 5 < 7
-2(1) + 5 < 7
-2 + 5 < 7
3 < 7
7 0
3 years ago
The population of Clarksville is about 6000 people. What is the population written as a whole number multiplied by a power of te
padilas [110]
I don't understand what you mean but this might be the answer
{6}^{100}
7 0
3 years ago
Help me please i put 15 points i think that means it gives you 7 or 8 points??
castortr0y [4]

Answer:

Mean: 0.15125

Median: 0.05

Mode: .05

Range: 0.495

Hope this helps!

3 0
3 years ago
Other questions:
  • The mean cost of domestic airfares in the United States rose to an all-time high of $385 per ticket (Bureau of Transportation St
    6·1 answer
  • What is the domain of f(x)=cos(x)
    9·1 answer
  • 65.874 to one decimal place
    11·1 answer
  • Write the inverse function for the function, ƒ(x) = x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.
    15·1 answer
  • Determine the volume of the cylinder
    5·1 answer
  • If the cooking time is 4.33 hours and the food should be ready by 17:15pm what time should we start cooking
    6·2 answers
  • HELP URGENT !!!!!!!<br> Please help me with this
    13·1 answer
  • Yes i give brainliest​
    5·1 answer
  • $750 at 6% for 18 months​
    9·1 answer
  • Which net matches the solid figure shown below?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!