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Monica [59]
3 years ago
5

∆ABC is an isosceles triangle in which angles B and C are congruent.

Mathematics
2 answers:
evablogger [386]3 years ago
7 0
The correct answer is 96
4x+10=x+343x+10=343x=24x=8
B = (4x + 10)   = 4(8) + 10   = 32+10 = 42B = m∠ C = 42A = 180 - 2(42)A = 180 - 84A = 96
Brut [27]3 years ago
4 0
Since B and C are congruent, that means that 4x+10=x+34. Using the addition property of equality, I challenge you to solve for x! After you do that, you can note that all the angles in a triangle add up to 180, so 4x+10+x+34+angleA=180. When you find x, you can substitute that in.

If you need help with the addition property of equality for variables, here's an example - 5x+23=4x+3. Subtracting 3 from both sides, we get 5x+20=4x. Next, we can subtract 5x from both sides to get -x=20 and divide both sides by -1 to get x=-20.

Good luck, and feel free to ask with any questions!
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What is the value of i^n if the remained of n/4 is 2<br> A. i<br> B. -i<br> C. -1<br> D. 1
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Question Progress
Alik [6]

Answer:

60 ; - 40 ; 22 ; - 11

Step-by-step explanation:

Given that:

Number of questions = 20

Rules :

Every correct answer scores 3 points.

Each incorrect answer loses 2 points.

A question not answered scores 0 points.

It is possible to finish the quiz with a negative score.

a)

Maximum score : answering all questions correctly :

(3 points * 20 questions)

= 3 * 20

= 60 points

b)

Minimum score is obtainable by answering all questions incorrectly ;

(-2 points * 20)

= - 40 points

c)

10 correct answers = (3 * 10) = 30 points

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Net total = 30 + (-8) = 30 - 8 = 22 points

d) Another student answers 18 questions,

5 are correct. How many points does she score?

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Net total = 15 + (-26) = - 11 points

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