Answer:
Q1. 
∴ 
∴ From the quadratic equation above, a = 4, b = -9, and c = -8.
Q2. 
∴ 
∴ The equation above is not a quadratic equation as it does not follow the format of ax² + bx + c.
Q3. 
∴ 
∴ The equation above is not a quadratic equation as it does not follow the format of y = ax² + bx + c.
Answer:
3972.72 specimens
Step-by-step explanation:
We solve using the z score formula:
z = (x-μ)/σ where
x is the raw score = 73 cm
μ is the population mean = 147 cm
σ is the population standard deviation = 30 cm
N is the number of samples = 4000
For x > 73
z = 73 - 147/30
z = -2.46667
Probability value from Z-Table:
P(x<73) = 0.0068189
P(x>73) = 1 - P(x<73) = 0.99318
The probability of having a height greater than 73cm is: 0.99318
The number of specimens that have a height greater than 73cm is calculated as: 0.99318 × 4000
= 3972.72 specimens
Answer:
y=x+4
Step-by-step explanation:
y intercept should be at positive 4 and a straight line going in the positive direction
Answer:
Rain:
When it's raining outside and you're on the road driving, it's easy to crash into someone else. Rain on your windshield will make it blurry, but whenever window wipers go to wipe it off, it gets most of it off, but the windshield is still a little blurry, which can make car vision hard. It's best not to drive in the rain because when the ground is wet, it's easy to slip and fall, and with that, it's easy for cars to swerve, but not as badly as ice.
Snow:
When it's snowing, it's not a good idea to drive. It could blur your vision in the car and get stuck on the windshield where the window wipers cannot get it off. It'll smear onto the glass and make it blurry. Kind of like frost on a window!
Ice:
When the road is icy, it's easy to mess up turning. Since ice is so slippery, and even though tires are rubber and can't slide easily, doesn't mean that your car still can't swerve and crash into other people's cars.
Fog:
If it's foggy, don't drive. It can blur your car vision nearly as bad as snow. Even with headlights, you could still crash into other cars by accident. Fog will also most likely cover up the traffic lights.
Step-by-step explanation:
I hope this helped!
Answer:
the answer is y-4
Step-by-step explanation:
variable cone first
