There are taste buds. each of these contains taste receptors

Approx 8000 to 10,000 taste buds are present and these contains five taste receptors.

Step-by-step explanation:

Taste buds have microscopic hairs called microvilli which is very sensitive. These tiny hairs sends message to the brain about various tastes. So we may know different taste like it is salty, sour, bitter or sweet.The human tongue have 8000 to 10,000(approx.) taste buds are present.

There are five taste receptors are present on the taste buds like sweet, salty, bitter, sour and umami. Both sour and salty taste detected through ion channel, while sweet, bitter and umami taste is detected by G-proteins coupled taste receptor.

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240