Answer:
cot(x)
Step-by-step explanation:



Recall the Pythagorean Identity 
Answer:
The answer is option 1.
Step-by-step explanation:
In order to find the equation, you have to apply Discriminant Law, D = b² - 4ac. When D < 0, the equation has no real roots (no x-intercept). When D = 0, it has 2 and equal roots (1 x-intercept). When D > 0, it has 2 distinct roots (2 x-intercept).
Option 1,




Option 2,



Option 3,




Option 4,




As you look at the graph, the curve does not meet x-axis so the discriminant must be less than 0.
Answer: E
Step-by-step explanation:
4 divide 50 = 8 divide 2= 4
I know someone else already answered so hi! Hope everyone’s night is going well シ
Answer:
Function H h(t) = -6.1 + 19t - 55
Step-by-step explanation:
Let t = 1
<u>Function F</u>
h(t) = 6.1t^2 + 19t - 54.4
h(1) = 6.1(1)^2 + 19(1) - 54.4
h(1) = 6.1 + 19 - 54.4
h(1) = -29.3
<u>Function G</u>
h(t) = -24.1t^2 + 2.8
h(1) = -24.1(1)^2 + 2.8
h(1) = -24.1 + 2.8
h(1) = -21.3
<u>Function H</u>
h(t) = -6.1t^2 + 19t - 55
h(1) = -6.1(1)^2 + 19(1) - 55
h(1) = -6.1 + 19 - 55
h(1) = -42.1
<u>Function J</u>
h(t) = -6.1t^2 + 19t + 0.99
h(t) = -6.1(1)^2 + 19(1) + 0.99
h(t) = -6.1 + 19 + 0.99
h(t) = 13.89