Answer:
see explanation
Step-by-step explanation:
(1)
The sum of the 3 angles in a triangle = 180° , thus
a + b + c = 180
(2)
adjacent angles are supplementary, thus
b + d = 180
(3)
From (1) and (2)
b + d = a + b + c ( subtract b from both sides )
d = a + c
Answer:
10. answer= 3
Q11 answer = -3
Step-by-step explanation:
Q10.
-3x+9-x+9=3x-3
or, -4x+18=3x-3
or, 3x+4x=18+3
or, 7x=21
or, x=3 <u>answer</u>
<u>Q</u><u>1</u><u>1</u><u>.</u>
1.8-3.7x= -4.2x+0.3
or, 4.2x-3.7x=0.3-1.8
or, 0.5x= -1.5
or, x=-3 <u>answer</u>
Take 156, divide by 13 and the multiply by 12. It is 144
<span>
<span>
</span><span><span>
Number
Frequency <span> Probability </span>
</span>
<span>
1 4
<span> 0.13
</span>
</span>
<span>
2 6
<span> 0.20
</span>
</span>
<span>
3 5
<span> 0.17
</span>
</span>
<span>
4 7
<span> 0.23
</span>
</span>
<span>
5 3
<span> 0.10
</span>
</span>
<span>
6 5
<span> 0.17
</span></span><span>total 30<span> 1.00
</span></span></span></span><span>The best explanation of how to find the experimental probability of rolling a 3 is:
To find the experimental probability of rolling a three, write a ratio of the number of times three occurs to the total number of trials. Simplify if necessary.
5/30 = 1/6 or 0.166 or 16.6% or 17%.</span>
