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Mashcka [7]
3 years ago
8

HELP DUE IN 10 MINS! m∠B =??

Mathematics
1 answer:
Verdich [7]3 years ago
7 0

Answer:

  • 130°

Step-by-step explanation:

<u>Isosceles trapezoid has congruent angles at each base:</u>

  • ∠C ≅ ∠B, ∠D ≅ ∠A
  • m∠B = m∠C = 130°
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Harry, Peter and 7 girls sit in a row. Harry can't sit in an end seat. In how many ways can they be arranged?
Sonja [21]
All possibilities = 9! 
possibilities that harry sits at an end = 8! + 8! 
possibilities that harry doesn't sit at an end = 9! - 8! -8! 

4 0
3 years ago
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What is the simplified form of the expression? k3 [k^7/3] -5
iragen [17]
Simplify the following:
(k^3 k^7)/3 - 5

Combine powers. (k^3 k^7)/3 = k^(7 + 3)/3:
k^(7 + 3)/3 - 5

7 + 3 = 10:
k^10/3 - 5

Put each term in k^10/3 - 5 over the common denominator 3: k^10/3 - 5 = k^10/3 - 15/3:
k^10/3 - 15/3

k^10/3 - 15/3 = (k^10 - 15)/3:
Answer: (k^10 - 15)/3
3 0
3 years ago
Given sin300°, which of the following is an equivalent expression ?
DENIUS [597]

Answer:sin240

Step-by-step explanation:

Sin300=(-√3)/2

Sin240=(-√3)/2

So sin300 is equivalent to sin240

8 0
3 years ago
What is the point slope of the line when slope is -4 and the given coordinates are (4,-9)
Lina20 [59]

The point-slope form of the equation of a straight line is:

y-y_1=m(x-x_1)

We have:

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8 0
3 years ago
Weight/Calories per Day 1000 to 1500 cal. 1500 to 2000 cal. 2000 to 2500 cal. Total
Lady bird [3.3K]
<h2>Answer:</h2>

Option: D is the correct answer.

The probability is: 0.50

<h2>Step-by-step explanation:</h2>

Weight/Calories  1000-1500   1500-2000  2000-2500   Total

    120 lb.                 90               80                   10               180

    145 lb.                 35               143                  25              203

    165 lb.                  15                27                  75               117

    Total                140               250                110             500

We are asked to find the probability that a person consumes 1500-2000 calories in a day.

Total number of people who were surveyed=500

Total number of people who consume 1500-2000 calories in a day are:250

              Hence, Probability is:

                250/500=1/2=0.50

6 0
3 years ago
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