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meriva
4 years ago
8

A+B =90 and sin a = 3/5 find cos B

Mathematics
1 answer:
Semmy [17]4 years ago
6 0

Idk Thai is for me to get points

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Someone knows?<br>I don't get it​
g100num [7]
C, because A is going to B which is 11 and B is going to C which is 10 and C going back to A is 9
6 0
3 years ago
(Algebra 2) write a polynomial function of least degree with integral coefficients that has the given zeros.
saveliy_v [14]

Answer:

x^{2} -2ix+3=0 .

Step-by-step explanation:

Given the zeroes of the polynomial are

a=-i . and b=3i

The recquired polynomial is (x-a)(x-b)=0

On substituting the values of a and b we get

(x+i)(x-3i)=0

x^{2} -3xi+ix-3i^{2}=0

x^{2} -2ix+3=0 .       (∵i^{2}=-1)

6 0
3 years ago
jane paid $40 for an item after she received a 20% discount. janes friend says this means that the original price of the item is
olga55 [171]
48x0.2= $9.6
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3 0
3 years ago
PLEASE HELP THE QUESTION IS BELOW!!
irina [24]

Answer:

Step-by-step explanation:

B=3x-2

C=12x+2

D=B=3x-2 (Vertically opposite angles)

A=?

Now; we know, A+B+C+D=360 deg.

=>A=360-(B+C+D)

  =360-(3x-2+12x+2+3x-2)

  =360-(18x-2) ----[1]

B+C=180 deg. (linear pair)

=> 3x-2+12x+2=180

=> 15x=180

=> x=180/15

   =12 ---[2]

subsitute [2] in [1];

=> A= 360-(18x-2)

   = 360-(18*12-2)

   = 360-(116-2)

   = 360-214

   = 146 deg.

   

So, the correct answer is (D).

Hope the answer is useful.  

8 0
3 years ago
Read 2 more answers
Plz help multiply and divide one step​
emmainna [20.7K]

Answer:

The value if y is -7

hope it helps you

4 0
2 years ago
Read 2 more answers
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