OK. <u>2 = -t² + 4t + 5</u>
Subtract 2 from each side: 0 = -t² + 4t + 3
Multiply the right side by -1 : 0 = t² - 4t - 3
Unfortunately, this can't be factored. The only other way I know
to find the solutions to a quadratic equation is with the use of the
quadratic formula. When you do that, you get these solutions:
t = 2 + √7 = about<em> 4.65</em>
and
t = 2 - √7 = about <em>-0.65</em> .
If this equation comes from a problem that involves real people throwing
real things into the air and making vertical motion, then you want only the
positive solution.
Answer: x = -8
Step-by-step explanation: Since this line has <em>no slope</em>, it must be <em>vertical</em>.
The equation of a vertical line through a given point can
always be written x = the x-coordinate of the given point.
So the answer to this problem is x = -8.
Answer:
Option (D)
Step-by-step explanation:
In the given triangle ABC,
Sum of all interior angles = 180°
m∠A + m∠B + m∠C = 180°
72° + 85° + m∠C = 180°
m∠C = 180 - 157
m∠C = 23°
By applying Sine rule in the triangle,
a = 
= 15.09
b = 
b = 15.81
Therefore, option (D) will be the answer.
Step-by-step explanation:
sorry i am unable to understand what it is asking but if you inform me more i would love to help
Positive slope is my best guess for the informations givin
