Given the speeds of each runner below, determine who runs the fastest. Liz runs 8 feet
per second.
Brooke runs 428 feet in 46 seconds.
Zach runs 1 mile in 445 seconds.
Adam runs 848 feet in 1 minute.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊