How to divide 8/9?:)

The kinetic energy of the soccer is 2.25 J.

What is Kinetic energy?

The kinetic energy of the soccer is the energy possessed by the soccer due to its motion and the can be determined using the following formula;

K.E = ¹/₂mv²

where;

• m is mass of the soccer
• v is the velocity of the soccer

Substitute the given parameters and solve for the kinetic energy of the soccer.

K.E = ¹/₂ x 0.5 x (3)²

K.E = 2.25 J

Thus, the kinetic energy of the soccer is 2.25 J.

Learn more about kinetic energy here: brainly.com/question/25959744

The value of the unknown variables a and b in given equations are 1 and -2 respectively.

What is equation?

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given are two equations,

6a+b = 4......(i)

5a + 2b = 1.......(ii)

Solving them by using substitution method,

6a+b = 4

b = 4-6a......(iii)

Using equation (iii) in equation (ii)

5a + 2(4-6a) = 1

5a+8-12a = 1

-7a = -7

a = 1

Put a = 1 n eq(iii)

b = 4-6·1

b = 4-6

b = -2

Hence, The value of the unknown variables a and b in given equations are 1 and -2 respectively.

For more references on equations, click;

brainly.com/question/29657983

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Answer:

X = 1

Y = -2

Step-by-step explanation:

Use simultaneous equations to work out.

the answer is 36 because 180-108 is 72. 72=2x . so to find x, you divide 72 by 2, which gives you 36