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Elena-2011 [213]
3 years ago
10

Pls help ;cI need help on those 3 problems​

Mathematics
1 answer:
seraphim [82]3 years ago
4 0
To answer these you must know Soh Cah Toa

Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj

I’ll do #23 for you.
x = the angle
Tan (x) = 8/6 (8 is opp of ang and 6 is adj)
Then you must do the inverse
x = tan^-1 (8/6)
Then use a calculator to solve for x.
Use this system for the rest of the problems (won’t necessarily be the tangent)
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ALGEBRA Ben Shield's credit card uses the unpaid-balance method to compute the finance charge at a monthly periodic rate of 1.87
Oksana_A [137]

The new balance is a credit of $ 48.78.

Since Ben Shield's credit card uses the unpaid-balance method to compute the finance charge at a monthly periodic rate of 1.875%, and during the monthly billing cycle, Ben charged $ 238.75, made a payment of $ 300.00, and had a finance charge of $ 7.99, to find his new balance, the following calculations must be performed:

  • Finance charge + new purchases + previous balance - payments = X
  • 238.75 x 1.01875 + 7.99 - 300 = X
  • 243.22 + 7.99 - 300 = X
  • 251.21 - 300 = X
  • -48.78 = X

Therefore, the new balance is a credit of $ 48.78.

Learn more about maths in brainly.com/question/3554632

6 0
3 years ago
The mathletes needed $932.50 to attend a competition in Boston .the bus cost $550 and meals for the tournament costs $22.50 for
Anika [276]

Answer:

A: 17

Step-by-step explanation:

X = Number of students

(932.5 - 550)/22.5

(382.5)/22.5

17

4 0
3 years ago
How do you solve...0=-5t^2+20t+1
-Dominant- [34]
There were 2 solutions that i came up with. Here is the first one. I rearranged the  eqaution by subtracting what is to the right of thr equal sign. Multiply the coefficeint of the first term by the constant 5 x (-1)= -5. Then you would find 2 factors of -5 whose sum equals the coefficient of the middle term which is 20. -5+1= -4 and  -1+5=4.  the eqaution then comes to 5t^2-20t-1=0. you would solve  5t^2-20t-1=0. you would divide both sides of the equal sign by 5. t^-4t-1/5=0. then t^2-4t=1/5. add 4 to both sides of the equation.  so we get 21/5+ 4 + 4t -t^2=21/5. it then comes out to be t^2-4t+t=t-2^2. according to the law of transitivity it is t-2^2=21/5.

 t =(20+√420)/10=2+1/5√<span> 105 </span><span>= 4.049 </span>. 
4 0
3 years ago
SUBJECT: Graphs of Function<br>which is true about the function relationship shown in the graph?​
irinina [24]
The answer is D
This is because those are the ones that are x and y titles
4 0
3 years ago
SOMEONE PLEASE HELP!!! ILL GIVE U BRAINLIEST
worty [1.4K]

Answer:

x + 75 + x + 125 = 180 \\  \\ 2x + 200 = 180 \\  \\ 2x = 180 - 200 \\  \\ 2x =  - 20 \\  \\ x =  \frac{20}{2}  \\  \\ x = 10

it's was helpful to you

3 0
3 years ago
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