What is 8 - 4k = 40

2 answers:

5 0

Let's solve your equation step-by-step.8−4k=40Step 1: Simplify both sides of the equation.8−4k=408+−4k=40−4k+8=40Step 2: Subtract 8 from both sides.−4k+8−8=40−8−4k=32Step 3: Divide both sides by -4.−4k−4=32−4k=−8Answer:k=−8

olya-2409 [2.1K]3 years ago

3 0

8-4k=40
-4k=32
k=-8 is the answer

You might be interested in

Rose Marie is shopping for some new shoes. The shoes she wants cost

ololo11 [35]

Answer:

Step-by-step explanation:

7 0

3 years ago

An irrigation system (sprinkler) has a parabolic pattern. The height, in feet, of the spray of water is given by the equation h(

jasenka [17]

9514 1404 393

Answer:

7.5 ft
32.5 ft, 5 ft
10.7 ft

Step-by-step explanation:

a) The starting height is h(0) = 7.5 feet, the constant in the quadratic function.

The irrigation system is positioned 7.5 feet above the ground

b) The axis of symmetry for quadratic ax^2 +bx +c is x = -b/(2a). For this quadratic, that is x=-10/(2(-1)) = 5. This is the horizontal distance to the point of maximum height. The maximum height is ...

h(5) = (-5 +10)(5) +7.5 = 32.5 . . . feet

The spray reaches a maximum height of 32.5 feet at a horizontal distance of 5 feet from the sprinkler head.

c) The maximum distance will be √32.5 + 5 ≈ 10.7 ft.

The spray reaches the ground at about 10.7 feet away.