1.all real numbers that are less than -3 or greater than or equal to 5 a. x < -3 or x≥5 b. x < 5 or x ≥-3 c. x ≤ -3 or x > 5 d. x ≤-3 or x ≤ 5 2.the time a cake must bake is between 25 minutes and 30 minutes, inclusive. a.25 < x < 30 b.25 ≤ x ≤ 30 c.25 ≤x ≥ 30 d.25 < x > 30 3. solve. 5 < x -2 < 11 a.5 < x < 11 b.7 < x < 13 c.7 < x < 11 d.5 < x < 16 4. which graph shows the solution of 9 - c < 2 or -3c > 15?

1   is   a

2   is   b

3   is  b

hope   it   helped

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this