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Vikki [24]
2 years ago
8

ΔABC is similar to ΔAXY by a ratio of 4:3. If BC = 24, what is the length of XY? triangles ABC and AXY that share vertex A where

point X is between points A and B and point Y is between points A and C XY = 18 XY = 32 XY = 6 XY = 8
Mathematics
1 answer:
nekit [7.7K]2 years ago
3 0

Answer:

XY = 18

Step-by-step explanation:

Given

ABC:AXY = 4 : 3

BC = 24

Required

Find XY

Represent BC and XY as a ratio;

BC : XY = 24 : xy

Recall that:

ABC:AXY = 4 : 3

Equate both ratios;

24 : xy = 4 : 3

Convert to fractions

\frac{24}{xy} = \frac{4}{3}

Cross Multiply

xy * 4 = 24 * 3

xy * 4 = 72

Divide through by 3

xy * 4/4 = 72/4

xy = 18

Hence:

XY = 18

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3 0
3 years ago
Question 2 2.1 2.2 2.2.1 2.2.2 Determine the general solution for sin(x - 30°) = cos 2x Consider the functions f(x) = sin(x-30°)
OLEGan [10]

The general solution for the given equation is 40°+120°n.

The period of g(x) is π.

The range of f(x) is [-1, 1].

  • sin(x-30°) = cos 2x
  • sin(x-30°) = sin(90°-2x)
  • (x-30°) = (90°-2x) + 360°n
  • x + 2x =  90° + 30° + 360°n
  • 3x = 120° + 360°n
  • x = (120° + 360°n)/3
  • The general solution (x) is 40° + 120°n.
  • g(x) = cos 2x
  • The period of cos x is 2π.
  • If the multiplying factor of x is 'n', then it decreases the period by n times.
  • Here, in g(x), n is 2.
  • The period of g(x) is equal to half the period of cos x.
  • The period of g(x) = 2π/2
  • The period of g(x) is π.
  • f(x) = sin(x-30°)
  • "Sin" is a trigonometric function which has a range from -1 to 1.

To learn more about  period, visit :

brainly.com/question/12539110

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5 0
1 year ago
If g(x)= x=2 and h(x) = 4 - X, what is the value of (gºh)(-3)?
navik [9.2K]

The required value of (g°h)(-3) is 5.

Step-by-step explanation:

Given,

g(x)= x-2 and h(x) = 4 - x

To find (g°h)(-3)

Now,

(g°h)(x) = g(h(x))

= g(4-x)

= (4-x)-2 = 2-x

So,

(g°h)(-3) = 2-(-3) = 5 [ putting x=-3]

8 0
3 years ago
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