2 answers:
A mathematical equation is an expression containing at least one variable and an equals sign with a mathematical expression on each side of it.
Answer:
hello :
Step-by-step explanation:
exempls :
x+1 =2
x/2 = 4
x²+x+3 =0
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Answer: -9
Step-by-step explanation: 2 + 7 = 9 and just put an negative in front of 9
<h2>
-9 -_-</h2>
Answer:
<h3>#7</h3>
(a)
<u>Sample space:</u>
- 1*1, 1*2, 1*3, 1*4,
- 2*1, 2*2, 2*3, 2*4,
- 3*1, 3*2, 3*3, 3*4,
- 4*1, 4*2, 4*3, 4*4
Total 16 outcomes
(b)
- (i) P(even) = 12/16 = 3/4
- (ii) P(3x) = 7/16
- (iii) P(perfect square) = 4/16 = 1/4
<h3>#8</h3>
(a) <u>Sample space:</u>
- 1T, 1H, 2T, 2H, 3T, 3H, 4T, 4H
Total 8 outcomes
(b)
(i) 1T, 3T
(ii) 1H, 4H
- P(H and square) = 2/8 = 1/4
(iii) 1H, 2H, 3H, 4H
0.25 is 1/4 if that's what youre asking, i'm not sure,
The answer is 45.9 you Add it
