Answer: 4:5
Step-by-step explanation: First find a number 12 and 15 can both be divided by. I found 3, and did the following:
12/3=4
15/3=5
The ratio of boys to girls in Luka's math class is 4:5
Answer: the last option.
A binomial experiment is an experiment with only two possible outcomes.
In the first option, there is three possible outcomes (i.e. A, B, C)
In the second option, there is four poissible outcomes (i.e. ace, king, queen, jack)
The third option has six possible outcomes (i.e. six faces of a die)
In the last option, there are two possible outcomes (i.e. '2 number cubes')
Answer:
x ≈ 12.7
Step-by-step explanation:
Since the base angles are congruent , both 45° then the triangle is isosceles with 2 congruent legs, both 9
Using Pythagoras' identity in the right triangle.
x² = 9² + 9² = 81 + 81 = 162 ( take square root of both sides )
x = 
≈ 12.7 ( to the nearest tenth )
Answer:
x = 32
Step-by-step explanation:
these angles are same-side-exterior angles which are supplementary
therefore you can add them together and set equal to 180 to solve for 'x'
2x - 16 + 4x + 4 = 180
6x - 12 = 180
6x = 192
x = 32
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