Question

please with explanation​

Answer 1

Answer:

Please mark as brainliest.

Step-by-step explanation:

E. Area of circle- 154 cm²

pi r²= 154

22/7×r²=154

r²=154×7/22

r=7cm

Circumference = 2 × pi × r

= 2× 22/7× 7

= 44 cm

2. A. x²- Monomial ( It has only one expression)

a+b-c: Trinomial (It has three expressions)

2x+4: Binomial (It has two expressions)

a²+2a: Binomial( It has two expressions)

2. B. 2x²-2y+2z

+ 2x²+3y+4z

4x²+y+6z

2. C. 6a+3b-c

- (4a+2b)

2a+b-c

Hope it helps. Please mark as brainliest.

Answer 2

Area = π r² = 154

r² = (154×7) / 22

r² = 49

r = 7

Circumference = 2πr = 44 cm

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Monomial → x²

Binomial → 2x + 4 , a² + 2a

Trinomial → a + b - c

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

2x² - 2y + 2z + 2x² + 3y + 4z

4x² + y + 6z

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

6a + 3b - c - ( 4a + 2b)

6a + 3b - c - 4a - 2b

2a + b - c

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬