None because x will equal -54
-4(2^(1-x)) = -4(2¹ x 2^-x) = -4(2 x ½^x) = -8 (-2)^x therefore the last option
Answer:
450 feet at ground level
Step-by-step explanation:
The width of the bridge at ground level will be where the function intercepts the x-axis also known as the roots or zeros of the function. They are found using the zero product property to set each factor equal to 0.
This means (x-225) = 0 and (x + 225) = 0. So x = -225, 225.
This means the width is the absolute value of |-225| + 225 since distance cannot be negative. This makes it 450 feet.
Answer:Hence, the grapefruit is 20% heavier than the apple.
Step-by-step explanation:
Let the weight of orange be x.
This means that the weight of grapefruit is:
1.08x
( Since grapefruit is: 8% heavier than orange )
Also, the weight of apple is 10% lighter than apple.
This means that the weight of apple is: 0.90 x
Hence, the percent change in the weight of grapefruit as compared to apple is calculated by:
