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andrew-mc [135]
3 years ago
8

Find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each

question has 3 possible answers.
Mathematics
1 answer:
vovangra [49]3 years ago
8 0
1/3(1/3)=1/9

Hope this helped!
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I REALLY NEED HELP ILL MARk BRANLIEST AND IVE MADE IT EXTRA POINTS
fiasKO [112]

Answer:

142 degrees

Step-by-step explanation:

Easy, 180 degrees in a triangle... so 180-73-69 is 38... now two angles combined on a staight line is also 180 degrees. So now 180 degrees minus 38 is 142 degrees.

5 0
3 years ago
Read 2 more answers
(2 + 5i)(4 + 3i) Multiply the following complex numbers and write your answer in the simplest a+bi form.
galina1969 [7]

Answer:

-7+26i

Step-by-step explanation:

Use FOIL

2•4+2(3i)+5i•4+5i(3i)

Simplify by combining like terms for your answer

8+6i+20i-15

-7+26i

8 0
3 years ago
Prove sums of angles in a triangle is 180 degree
goldfiish [28.3K]

Answer:

because a triangle has 3 sides and has 3 angles

so each angle on a equilateral triangle has 60 degrees which means

  60 x 3 = 180

Step-by-step explanation:

because a triangle has 3 sides and has 3 angles

so each angle on a equilateral triangle has 60 degrees which means

  60 x 3 = 180

6 0
3 years ago
A chair costs ₹ 452 and a table costs ₹ 1750. What will be cost of 15 chairs and 30 tables?
gavmur [86]

Answer:

1 chair cost=$452

so of 15 chairs=$452×15=$6780

1 table cost=$1750

so cost of 40 tables=$1750×30=$5250

Total cost=$6780+$5250=$12,030

Step-by-step explanation:

5 0
3 years ago
A circular puzzle is 20 inches in diameter. All of the pieces are about the same size. You want to know about how many pieces th
igomit [66]

Answer:

Area

Step-by-step explanation:

5 0
3 years ago
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