Answer:
4,261
Step-by-step explanation:
after 23 hours, the number of bacteria =
4,000.
so, after 26 hours = 4,000+ (3/23 ×4000)
= 4,000 + 261 = 4,261
<span>The ramp forms a right triangle with legs 5 and 22.
Find the length of the hypotenuse using the Pythagorean theorem,
c=raiz((5)^2+(22)^2)=</span><span>
<span>22.56 ft
Answer
</span></span> the ramp is 22.56 ft long.
In a quadratic equation , we use the quadratic formula to find the solutions x = (-b ± √(b2 - 4ac)) / 2a where a, b, and c are coefficients of the equation ax2 + bx + c = 0 Since x=6 is the only x-intercept, the equation would be (x - 6)(x - 6) = 0 Expanding this out, we get x2 - 12x + 36 = 0 In this equation, a = 1b = -12c = 36 Now the discriminant is the square-root part of the formula: b2 - 4ac Now plug in the values of a,b, and c into the discriminant. (-12)2 - 4(1)(36) = 144 - 144 = 0 This number is under the square-root. The square-root of 0 is 0. Your answer is (A).
(I had the same question in math last week)