Are there choices?
y = -2x - 10
Answer:
z = 10
Step-by-step explanation:
The value of the z-statistic is given by:

In which:
X is the measured value.
is the expected value.
is the standard deviation of the sample.
is the standard deviation of the population.
In this question:
The mean length was 2.9 inches, and the population standard deviation is 0.1 inch.
This means that 
Random sample of 100 screws.
This means that n = 100.
To see if the batch of screws has a significantly different mean length from 3 inches, what would the value of the z-test statistic be?
3 inches, so 




The standard position of a function is y = ax^n + bx^n-1 + ... k where a, b and k are all constants. In this case, the problem gives
<span>y = − one over two (x − 2)2 − 2
Translating numerically,
y = [-1/2(x-2)^2 ] -2
2(x-2)^2 y = -1 -2(2*(x-2)^2)
</span>2(x-2)^2 y= -1 -4(x^2-4x+4)
y = (-4x^2 + 16x -17) /(2(x-2)^2)
Acceleration of motorcycle= 1.23m/s^2
Step-by-step explanation:
We need to find the acceleration of motorcycle When its speed increases from 10km/hr to 50km/hr in 9 seconds
Given:
Initial speed= 10km/hr
Final speed= 50km/hr
Time = 9 seconds
Acceleration = ?
Formula: 
Solution:
We will first convert the speed from km/hr to m/s
Converting Initial speed 10km/hr into m/s
1 km = 1000 m
10 km = 10,000 m
and 1 hr = 3600 s
So, Initial speed = 10,000/3600 = 2.77 m/s
Converting Final speed 50km/hr into m/s
1 km = 1000 m
50 km = 50,000 m
and 1 hr = 3600 s
So, Initial speed = 50,000/3600 = 13.88 m/s
Now Using formula of acceleration:

So, Acceleration of motorcycle = 1.23m/s^2
Keywords: Acceleration, Change in speed
Learn more about Acceleration at:
#learnwithBrainly
Answer:
y = -4x - 5
Step-by-step explanation:
The line starts at -5 on the graph and decreases by a rate of 4