Answer:
14.4 cm
Step-by-step explanation:
We solve the above question using Pythagoras Theorem
The formula is given as:
c ² = a² + b ²
Where:
c = Hypotenuse
a = 8cm
b = 12 cm
Hence,
c² = 8² + 12²
c² = 64 + 144
c² = 208
We square root both sides
c = √(208)
c = 14.422205102 cm
Approximately to the nearest tenth = 14.4 cm
This quadratic should be solved using the quadratic formula.
The quadratic formula is
(-b +/- sqrt(b2 - 4ac)) / (2a) (Side note: The +/- means that you use the plus sign once, then recalculate again using the minus sign. You should get two answers this way.)
The numbers that we plug into the letters can be found from the general form of a quadratic equation
ax2 + bx + c
In your quadratic a = 3, b = 1, and c = -5. I'll let you try and solve the rest on your own. Whatever your answer is, round it off to two decimal places.
Answer:
Team Blue
Step-by-step explanation:
The reason this is, is because for each day that passes, they make 5 more light bulbs. This is in relation to the days that pass.
Answer: - 235
<u>Step-by-step explanation:</u>
f(x) = -3x² + 13x + 3
f(-7) = -3(-7)² + 13(-7) + 3
= -3(49) - 91 + 3
= -147 - 88
= -235
