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
Korvikt [17]
3 years ago
11

Please help me with trigonometry and law of sines I’m being timed and really need the help

Mathematics
1 answer:
Usimov [2.4K]3 years ago
8 0

Step-by-step explanation:

cosA = AC² + BC²- AB² / 2 • AC • BC

cos A = 13.5²+23.9²-12.7²/2• 13.5 • 23.9

You might be interested in
Simplify 3 - (4x - 5) + 6.<br> A) 12x + 21 <br> B) 4x + 14 <br> C) 4x + 4 <br> D) -4x + 14
stepladder [879]

Answer:

D) -4x+14

Step-by-step explanation:

We are given with the expression

3 - (4x - 5) + 6

Here we are going to open the bracket at first step

as we have a negative sign in front of bracket the signs of the terms inside brackets will be reversed

3-4x+5+6

now we bring the like terms together

3+5+6 - 4x

Here 3, 5, 6 all are constant and hence like

14-4x

or

3 - (4x - 5) + 6= -4x+14

Hence our answer is -4x+14

6 0
3 years ago
3 is 25% of what number?
stira [4]

Answer:

12

Step-by-step explanation:

25%=1/4

of=*

3=1/4x

3 divided by 1/4 or 0.25 =12

6 0
3 years ago
Read 2 more answers
If you roll two fair dice repeatedly, what is the probability that you will get a sum of 4 before you get a sum of 5 ? (a) (b) (
AlexFokin [52]

Answer:

The probability that you will get a sum of 4 before you get a sum of 5 is \frac{1}{12}

Step-by-step explanation:

Given : If you roll two fair dice repeatedly.

To find : What is the probability that you will get a sum of 4 before you get a sum of 5 ?

Solution :

When two dice are rolled the outcomes are

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

Total number of outcomes = 36

Favorable outcome get a sum of 4 before you get a sum of 5 is (1,3) ,(2,2) and (3,1) = 3

The probability that you will get a sum of 4 before you get a sum of 5 is

P=\frac{3}{36}

P=\frac{1}{12}

Therefore, The probability that you will get a sum of 4 before you get a sum of 5 is \frac{1}{12}

5 0
3 years ago
Imitates the function, behavior or process of the thing it represents
Sav [38]
It represents simulations
4 0
3 years ago
Yoko runs10 miles in75 minutes. At the same rate, how many miles would she run in 69 minutes?
Ostrovityanka [42]
She would run 9.2 miles.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve tan(3x)=1 if -pi≤x≤pi.
    6·2 answers
  • Which statements are true about exponential functions? Check all that apply.
    7·2 answers
  • Pleas help to find a cure for cancer
    10·1 answer
  • Which expression is equivalent to 4x+20?
    10·1 answer
  • Help please, don’t guess or don’t answer if you don’t know it
    7·1 answer
  • (help) what type of triangle is shown below
    10·1 answer
  • Can a triangle be made using the side lengths of 13, 15, 23?
    11·1 answer
  • The model below represents an equation. IN Which represent like terms in the model of the equation? and and T Save and Exit Next
    14·1 answer
  • Please help with this question thanks!!
    8·1 answer
  • Which expression is a polynomial?<br><br> –13
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!