ASAP!The depth of the submarine is 50 feet below sea level when it starts to descend at the rate of 10.5 ft/s. It dives at that rate for 5 seconds. You want to model this descent with a linear equation. Determine the slope and the y-intercept. part a

the slope is: ___, ___

the y-intercept is: ___, ___

a. initial depth of the submarine

b. rate of descent

c. 50 ft

d. 10.5 ft/s

e. 5 seconds

part b

Write the equation in slope-intercept form for the depth of the submarine, y, in feet, below sea level over time, x, in seconds.

the answer is d. 75%

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

answer: the up tack or falsum is a constant symbol used to represent a logical constant denoting "false" in logic.