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
Y_Kistochka [10]
3 years ago
5

The right triangle shown has angles x, y, and z and side lengths a, b, and

Mathematics
1 answer:
tekilochka [14]3 years ago
7 0

(You forgot to provide the choices!?!)

A.) Cos Z = b/c

B.) Sin X= c/b

C.) Tan X = b/a

D.) Tan Z = a/b


B is the answer, Sin X = c/b is wong because Sin X= b/c ( sin = opposite/ hypotenuse)

Hope this helps.!

You might be interested in
On June 1st, Elena Moore deposited $610 in a savings account at Metro Savings and Loan Association. At the end of November, her
sasho [114]
I'm not good with any math that is above per algebra sorry.
3 0
3 years ago
Read 2 more answers
Rewrite the expression as an equivalent power with a negative exponent.<br> a. 1/49<br> b. 27/125
Hunter-Best [27]
\dfrac{1}{49}=\left(\dfrac{1}{7}\right)^2=7^{-2}\\&#10;\dfrac{27}{125}=\left(\dfrac{3}{5}\right)^3=\left(\dfrac{5}{3}\right)^{-3}
3 0
3 years ago
The Center for Medicare and Medical Services reported that there were 295,000 appeals for hospitalization and other Part A Medic
Ymorist [56]

Answer:

(a) 0.00605

(b) 0.0403

(c) 0.9536

(d) 0.98809

Step-by-step explanation:

We are given that 40% of first-round appeals were successful (The Wall Street Journal, October 22, 2012) and suppose ten first-round appeals have just been received by a Medicare appeals office.

This situation can be represented through Binomial distribution as;

P(X=r)= \binom{n}{r}p^{r}(1-p)^{n-r} ; x = 0,1,2,3,....

where,  n = number of trials (samples) taken = 10

            r = number of success

            p = probability of success which in our question is % of first-round

                   appeals that were successful, i.e.; 40%

So, here X ~ Binom(n=10,p=0.40)

(a) Probability that none of the appeals will be successful = P(X = 0)

     P(X = 0) = \binom{10}{0}0.40^{0}(1-0.40)^{10-0}

                   = 1*0.6^{10} = 0.00605

(b) Probability that exactly one of the appeals will be successful = P(X = 1)

     P(X = 1) = \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                  = 10*0.4^{1} *0.6^{10-1} = 0.0403

(c) Probability that at least two of the appeals will be successful = P(X>=2)

    P(X >= 2) = 1 - P(X = 0) - P(X = 1)

                     = 1 - \binom{10}{0}0.40^{0}(1-0.40)^{10-0} - \binom{10}{1}0.40^{1}(1-0.40)^{10-1}

                     = 1 - 0.00605 - 0.0403 = 0.9536

(d) Probability that more than half of the appeals will be successful =             P(X > 0.5)

  For this probability we will convert our distribution into normal such that;

   X ~ N(\mu = n*p=4,\sigma^{2}= n*p*q = 2.4)

  and standard normal z has distribution as;

      Z = \frac{X-\mu}{\sigma} ~ N(0,1)

  P(X > 0.5) = P( \frac{X-\mu}{\sigma} > \frac{0.5-4}{\sqrt{2.4} } ) = P(Z > -2.26) = P(Z < 2.26) = 0.98809

3 0
3 years ago
Please help me please!!!!!!!!
wolverine [178]
I believe the answer is B) 50
4 0
3 years ago
Read 2 more answers
Solve -1.2x+2.5=0.8x+6.5<br>x=2<br>O<br>x=-4 0​
Bond [772]

Answer:

x = - 2

Step-by-step explanation:

Given

- 1.2x + 2.5 = 0.8x + 6.5 ( subtract 0.8x from both sides )

- 2x + 2.5 = 6.5 ( subtract 2.5 from both sides )

- 2x = 4 ( divide both sides by - 2 )

x = - 2

4 0
3 years ago
Other questions:
  • Tyrone works at a diner, as both a cashier and a host. He earns $7.95 per hour no matter which job he does. Tyrone wants to buy
    13·1 answer
  • What’s 10 t0 the greatest power
    7·1 answer
  • A set of stairs is being built as shown.
    10·2 answers
  • Can somebody help me please i need to order these numbers from lease to greatest
    15·2 answers
  • With regard to mathematics, what is an accepted statement of fact that is used to prove other statements?
    6·2 answers
  • Which choice shows the sum of the two vectors&lt;-2 ,0&gt; and &lt;4,-5&gt; written as an ordered pair
    12·1 answer
  • If two lines are cut by a transversal, the corresponding angles are equal in measure.
    5·2 answers
  • PLZ HELP ME THANKS. If 3x-5-6x-2 is equaled to -1. Then how do I "check it"?
    5·2 answers
  • 7 is ten times the value of ?<br> 1. 0.007 <br> 2. 70<br> 3. 0.07<br> 4. 0.7
    10·2 answers
  • Find an expression for the number in the nth term pattern of the sequence.<br> 4 , 7 , 12, 19
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!