Answer:
Step-by-step explanation:
Given that,
The diameter of a leather ball, d = 28.4 cm
Radius, r = 14.2 cm
We need to find the area of the piece of leather used on the surface of the ball. The surface area of the ball is given by :
So, the area of the piece of leather is 
. The correct option is (b).
Answer:
The real and imaginary parts of the result are 
and 
, respectively.
Step-by-step explanation:
Let be 
, the following expression is expanded by algebraic means:
If 
, then:
Then, the variable is substituted in the equation and simplified:
The real and imaginary parts of the result are and , respectively.
Answer: 6
Step-by-step explanation: By checking the factors of both numbers, you see that 6 is their greatest common factor.
30: 1, 2, 3, 5, 6, 10, 15, 30
42: 1, 2, 3, 6, 7, 14, 21, 42
Hope this helps!
Answer:
First collect like terms on one side
150-2-120=2x+x+2x
148-120=3x+2x
28=5x
Let me change the positions so it could be easier to solve
5x=28
x=28/5
x=5.6
Step-by-step explanation:
I hope I explained well, please give me brainliest
Answer:
<u>128x^2+424x-279 </u>
Step-by-step explanation:
Use the distributive property to get the answer
Use this for refrence https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-ditributive-property/a/distributive-property-explained
Hope this Helps!
