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8_murik_8 [283]
3 years ago
9

Can someone help please???

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
7 0
A. 3.25 or 3 1/4
B. 2
C. .25 or 1/4
D. -.75 or -3/4
E. -2.25 or -2 1/4
F. -3.75 or -3 3/4
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In ABC, if CB AC≅ , m∠A = 3x + 18, m∠B = 7x – 58, and m∠C = 2x – 8, find x and the measure of each angle.
lesya692 [45]

9514 1404 393

Answer:

  x = 19

  A = 30°

  B = C = 75°

Step-by-step explanation:

In an isosceles triangle, the angles opposite the congruent sides have the same measures.

  A = B

  3x +18 = 7x -58

  76 = 4x . . . . . . . . add 58-4x

  19 = x . . . . . . . . . divide by 4

Then the equal angles measure ...

  A = B = 3(19) +18 = 75

  C = 2(19) -8 = 30

Angles A, B, C measure 75°, 75°, 30°, respectively.

_____

<em>Alternate solution</em>

The sum of angles in a triangle is 180°, so you could write ...

  (3x +18) +(7x -58) +(2x -8) = 180

  12x = 228 . . . . . add 48

  x = 19 . . . . . divide by 12

6 0
3 years ago
What is 3x4 get it right
xxMikexx [17]
The answer for your question is 12.
6 0
3 years ago
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If it cost me 375.00 to stay in a hotel for 3 days. How much it cost for one day.
marusya05 [52]

Answer:

125

Step-by-step explanation:

8 0
3 years ago
Can someone help me on this math problem ?
faltersainse [42]

Answer:

4/3

Step-by-step explanation:

Given two points, we can find the slope by using

m = (y2-y1)/(x2-x1)

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    = (20+16)/(7+20)

    = 36/27

   =4/3

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Z = 2489/533

Step-by-step explanation:

I went on photo math and solved it

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