Question

pls tell this answer and another one friends in my science exam my grade is A+​

Answer 1

Answer:

MARK ME AS BRAINLIEST....

Step-by-step explanation:

1. 51

2. 6.59

3. Right Angle Triangle

4. Idk

5. 10 + 6a = 4

6a= 4 - 10

6a = -6

a= -6/6

a = -1

Answer 2

Answer:

1) 6×9-6÷3

6×9 - 3

54 -3

51

2) 39.54 ÷ 3

quotient : 6.59

3) acute angles ( less than 90⁰)

4) acute angles ( less than 90⁰)

20⁰ n 47⁰

obtuse angle ( more than 90⁰ but less than 180⁰)

102⁰ n 91⁰

5)10 +6a = 4

6a = 4 - 10

a = -6 / 6

a = -1

check :

10 + 6 (-1) = 4

10 -6 = 4

4 = 4

LHS = RHS