Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a rectangle represented by the factor x + 8. what is the missing side length represented by x + 8 units of the rectangle? 7 15 20 28

28

Step-by-step explanation:

Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a rectangle represented by the factor x + 8.

LEts solve the equation for x

WE multiply the left hand side using FOIL method

Combine like terms

Now we factor the left hand side

Product is -300 and sum is -5,

Now set each factor =0 and solve for x

Length cannot be negative so we take only x= 20

the missing side length represented by x + 8

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation: