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
Minchanka [31]
3 years ago
6

I need help please I don’t understand this

Mathematics
1 answer:
mario62 [17]3 years ago
7 0

Answer:

cosB = 21/75, tanB = 72/21

Step-by-step explanation:

Here, we can use pythagoras to figure out all sides. 75^2-72^2 = 21^2. So, we have sides with lengths 21, 72, and 75. We are given that sinB = 72/75. The definition of sin is opposite of hypotenuse. So, the opposite of angle B is side CA and the hypotenuse is BA. This allows us to find that BC is the 21 length side. The cos of an angle is adjacent over hypotenuse. In this case, it is BC/BA which is 21/75. similarly, Tan is opposite over adjacent or 72/21. And we are done. Those are the values. TO remember these, use the acronym:

SOH CAH TOA. S refers to sin and OH refers to opposite over hypotenuse. Similarly C is cos, A is adjacent, and H is hypotenuse, and then T is tan,  o is opposite and A is adjacent.

You might be interested in
* HELP* A book sold 39,900 copies in its first month of release. Suppose this represents 8.2% of the number of copies sold to da
Anastasy [175]

Answer:

Total copies sold= 486,585

Step-by-step explanation:

Giving the following information:

Number of copies sold in the first month= 39,900

% of copies sold in the first month= 8.2%

<u>To calculate the total number of copies sold, we need to use the following formula:</u>

<u></u>

Total copies sold= Number of copies sold in the first month/% of copies sold in the first month

Total copies sold= 39,900 / 0.082

Total copies sold= 486,585

6 0
2 years ago
?/5 =8/10 type the missing number that makes this fraction equal
SOVA2 [1]
<h2>- - - - - - - - - - - - - - - - - - </h2><h3>\frac{?}{5}  =  \frac{8}{10}</h3><h3>Let's take the missing number as x.</h3>

<h3>\frac{x}{5}  =  \frac{8}{10}</h3><h3>Means = Extremes </h3><h3>x \times 10 = 5 \times 8</h3><h3>x =  \frac{5 \times 8}{10}</h3><h2>___</h2><h3>(Cancel by 2 table)</h3><h3>x =  \frac{5 \times4 }{5}</h3><h2>___</h2><h3>(Cancel by 5 table, So that we cancel 5 in the denominator and numerator)</h3><h3>x = 4</h3><h2>- - - - - - - - - - - - - - - - - -</h2>

<h2>Therefore, The missing number is 4. </h2>
5 0
2 years ago
Read 2 more answers
How to do this guys im stuck on this one
OverLord2011 [107]

Answer:

x = 63°

y = 27°

Step-by-step explanation:

RECT is a rectangle.

By the property of interior angles of a polygon,

All interior angles of a rectangle measure 90°

m(∠RTC) = 90°

m(∠RTC) = m(∠RTE) + m(∠CTE) [Angle addition postulate]

x° + 27° = 90°

x = (90 - 27)°

x = 63°

Since, opposite sides of a rectangle are parallel and equal in measure,

RE║TC and TE is a transversal line,

m∠RET = m∠CTE [Alternate interior angles]

y = 27°

5 0
3 years ago
Simply the expression: <br> Pls need help fast!!!!!!
sukhopar [10]

Answer:

4^6

Step-by-step explanation:

6 0
3 years ago
What is the measure of m? m=? 24 6
Vitek1552 [10]

Answer:

Follow the steps

Step-by-step explanation:

Angle M is 95 degrees.

3 0
3 years ago
Other questions:
  • Convert 3/16 inch to a decimal
    11·1 answer
  • HELP ME PLZZZ !!! MATH QUESTION
    11·1 answer
  • Which scale factors produce a contraction under a dilation of the original image?
    9·1 answer
  • Which sum or difference is modeled by the algebra tiles?
    11·1 answer
  • Consider the exponent function f(x)=(15^x). what is the value of the growth factor or the function?
    7·1 answer
  • Andrew earns an allowance of $12 the first week, $17 the next week, $22 the following week, and so on. How much will Andrew earn
    9·1 answer
  • Refer to the random sample of customer order totals with an average of $78.25 and a population standard deviation of $22.50. a.
    13·1 answer
  • Please I’m in a hurry I need help
    11·1 answer
  • Help plz ASAP
    10·1 answer
  • Alice has 2 pennies, 3 nickels, 4 dimes, 4 quarters and 1 loonie in her pocket. If one coin is drawn randomly, what is the theor
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!