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leva [86]
3 years ago
15

What is the perimeter of a triangle ABC With Vertices A(-1,3) B(2,3) C (-1,-3)

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
3 0

Answer:

15.71

Step-by-step explanation:

Length AB =  sqrt ( (3-3)^2 + (2- - 1)^2) =  sqrt9 = 3

Length BC =  sqrt ( (-3-3)^2 + ( -1-2)^2) =  sqrt  45

Lemgth CA =  sqrt( 6^2) + (-1 - -1)^2 = sqrt 36 = 6

Perimeter = 3 + 6 + sqrt45

= 15.71

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the inequality sign changes

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3 years ago
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Rudik [331]

Answer:

x = -1

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When an exponent is negative, you have to move it to the denominator (or to the numerator if it's already on the denominator). Since the answer is \frac{1}{2}, you know that the 2 has been raised to the power of 1 (any number to the power of 1 is the same number), so you just make it negative. Hope that helps!

7 0
3 years ago
Solve 5c + 4 = -26
mr_godi [17]
<em>1) 5 c + 4 = - 26
5 c = -26 -4
5 c = -30
c = -30 / 5
c = -6    so correct option is B..

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x = 10/2
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5)(x +  4) /2 = 7
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x = 14-4
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6)1/3 ( 2x - 8) = 4
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6 0
3 years ago
[50 points!]
marshall27 [118]

Answer:

1/3

Explanation:

P(Freshman | Boy)

  • Freshman = 4
  • Boy = 12

⇒ Probability = Number of favorable outcomes ÷ Total number of possible outcomes

  • P(Freshman | Boy) = freshman/total boys
  • P(Freshman | Boy) = 4/12
  • P(Freshman | Boy) = 1/3
4 0
2 years ago
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the admission fee at the amusement park is $3.00 for children and 6.40 fo adults on a certain day 275 people entered the park an
Sonbull [250]
Children=x
Adults=y
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Children: 140
Adults: 135
5 0
3 years ago
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