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Vinvika [58]
3 years ago
6

5. Identify the correct trigonometry formula to use to solve for X.

Mathematics
1 answer:
Anna007 [38]3 years ago
4 0

9514 1404 393

Answer:

  (a)  cos(55°) = 11/x

Step-by-step explanation:

The marked sides are the hypotenuse (x) and the side adjacent to the given angle (11). Then the relevant trig ratio is ...

  Cos = Adjacent/Hypotenuse

  cos(55°) = 11/x

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One number is 6 more than anouther number. the sum of their squares is 90
Flura [38]
Let x = greater number
      y = smaller  number

(1) x = y + 6

(1) y = x-6

(2) x^{2} + y^{2} = 90
We'll substitute y in (1) to (2)
(2) x^{2} +  (x-6)^{2} = 90
     x^{2} +  (x^{2} - 12x + 36) = 90
     x^2 + x^2 -12x + 36 - 90 = 0
     2x^2 - 12x -54 = 0

     2(x^2 - 6x - 27) = 0
     2(x - 9)(x + 3) = 0
 x - 9 = 0        or      x + 3 = 0
      x = 9                        x = -3
and
 y = x - 6                  y = x - 6
 y = 9 - 6                  y = -3 - 6
 y = 3                        y = -9

Therefore, the two numbers can be 9 and 3 or -3 and -9.

      
6 0
4 years ago
Mark is mixing different color paints for a mural
anygoal [31]

Answer:

25r+22b+65s

Step-by-step explanation:

ok so like uhh yea

7 0
3 years ago
A square garden has a perimeter of 68 m what is the area of the garden
Setler79 [48]

Answer:

the area is 289

Step-by-step explanation:

the formula for calculating the perimeter of a square is the side*4

68/4=17

the formula for calculating tha area is side*side

17*17=289

7 0
3 years ago
Which set of numbers could represent the lengths of the sides of a right triangle?
stich3 [128]
D. 3,4,5 trying to get points so
5 0
3 years ago
HELPPP QUICK PLS I WOULD GIVE YOU THE BRAINIEST PLSSS HELPP MEEE BEFORE I HAVE A BREAKDOWN PLS What is the midpoint of a line se
Alisiya [41]

Answer:

(5.5, 12.5) OR (11/2, 25/2)

I would put in the decimal value as the answer, but of you like then you can add the fraction as an answer.

Step-by-step explanation:

We are given the endpoints (-4, 15) and (22, 3) to find the midpoint. In order to find the midpoint, we will use its formula.

Midpoint formula :- (x1 + x2 / 2, y1 + y2 / 2)

(x1 + x2 / 2, y1 + y2 / 2)

(<u>-4 + 15</u> / 2, <u>22 + 3</u> / 2)

(11 / 2, 25 / 2) ---> (5.5, 12.5) Midpoint

Hope I answered your question. Stay safe, happy, and healthy, thank you :) !!

7 0
4 years ago
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