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
nata0808 [166]
3 years ago
13

Please show your work/explain. thank you so much <3

Mathematics
1 answer:
Jlenok [28]3 years ago
5 0

Answer:

cos A =  12/13

Step-by-step explanation:

TanC = AB/BC = 2.4

therefore

BC = AB/2.4

Pythagorean theorem

AC = √(AB² + (AB/2.4)²) = (13/12)AB

Cos A = AB/AC = AB / (13/12)AB = 12/13

You might be interested in
What is the value of the element at h21?
Marysya12 [62]
I think that's the element on the second row and the first column  which is 15.
8 0
3 years ago
Please help me. Factor. 5x^+23x+26
Alexus [3.1K]
<span>Algebra Calculator | Latest | Discuss | About | Help | Translation</span>

20,897,614 solved | 1,346 online

Skip Ad <span> <span> <span> <span> </span> <span>
</span></span></span></span> <span><span> 5x2-23x=-26</span> </span>Two solutions were found :<span><span>  x = 2 </span><span>  x = 13/5 = 2.600
</span></span>

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                     5*x^2-23*x-(-26)=0 

Step by step solution :Skip Ad
<span> Step  1  :</span><span>Equation at the end of step  1  :</span><span> (5x2 - 23x) - -26 = 0 </span><span> Step  2  :</span>Trying to factor by splitting the middle term

<span> 2.1 </span>    Factoring <span> 5x2-23x+26</span> 

The first term is, <span> <span>5x2</span> </span> its coefficient is <span> 5 </span>.
The middle term is, <span> -23x </span> its coefficient is <span> -23 </span>.
The last term, "the constant", is <span> +26 </span>

Step-1 : Multiply the coefficient of the first term by the constant <span>  5 • 26 = 130</span> 

Step-2 : Find two factors of  130  whose sum equals the coefficient of the middle term, which is  <span> -23 </span>.

<span><span>       -130    +    -1    =    -131 <span>
</span> </span> <span>       -65    +    -2    =    -67 <span>
</span> </span> <span>       -26    +    -5    =    -31 <span>
</span> </span> <span>       -13    +    -10    =    -23    That's it</span></span>
4 0
3 years ago
What is the area of this tile 4in 1in
nikitadnepr [17]

Answer:

4 in

Step-by-step explanation:

bc

area is inside you have to multiply

4 times 1 is 4

4 0
3 years ago
A fair coin is flipped four times. What is the probability of getting heads at least once?
Llana [10]
The probability is 15.63%. Solution:
 (1 + 4)! over (1! + 4! + 2 raise to 5)
=5/32
=.1563
=15.63%
6 0
4 years ago
Please help URGENT! WILL GIVE BRAINLEST AND 30 POINTS
ivanzaharov [21]

Answer:

The answer you are looking for is the letter B on your assignment hun. Merry almost Christmas☃️

5 0
3 years ago
Read 2 more answers
Other questions:
  • Ok so i need the work and answer for this problem is due asap click the picture.
    7·2 answers
  • On her drivers test, Mrs. Lynch got 26 out of 30 questions correct. The passing grade was 0.85. Did Mrs Lynch pass?
    13·2 answers
  • Which of the following congruence statements are correct?
    13·1 answer
  • 2/3*5/15+-24+-18 pls help asap
    9·1 answer
  • Which student drew the best trend line?? Why?
    10·1 answer
  • WILL MARK BRAINLIST FOR THE CORRECT ANSWER!!
    10·1 answer
  • A weatherman predicted 17 inches of snow. The town actually got 1 and 1/2 feet of snow. By what percent was the weatherman’s pre
    8·2 answers
  • Can someone pls help me w this paper. PLEASEEEEE
    10·1 answer
  • A scuba diver descends in the water at a rate of 20 1/2 feet per minute for 2.8 minutes. He immediately changes course when he s
    10·1 answer
  • Write the equation of the line in fully simplified slope intercept form
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!