PLZ HELP ME 1: Suraj says the two expressions below are equivalent. Is he correct? 2(3d - 2) and 6d - 2

A: No, when you distribute 2(3d - 2) you get 3d - 4 .Suraj did not distribute correctly.
B: Yes, when you factor 6d - 2 you get 2(3d - 2)
C: No, when you distribute 2(3d - 2) you get 6d - 4. Suraj did not multiply 2 by -2 correctly
D: Yes, when you distribute 2(3d - 2) you get 6d - 2.

2: Using the expressions (3x - 5y) and (4x + 2y),find the sum of the two given expressions.

A: 7x + 7y
B: 7x + 3y
C: x - 7y
D: 7x - 3y

3: Using the expressions (3x - 5y) and (4x + 2y), find the difference of the two given expressions.

A: -x - 7y
B: x - 3y
C: x - 7y
D: x + 3y

4: Factor: 30a + 35b.

A: 5(6a + 7b)
B: 5b(6a + 7)
C: this expression is already factored
D: 5a(6 + 7b)

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.