Answer: Option 'd' is correct.
Step-by-step explanation:
Since we have given that
Margin of error = 0.5 years
Standard deviation = 5
At 90% confidence, z = 1.645
We need to find the minimum size of the sample they must take.
So,
Hence, Option 'd' is correct.
Answer:
x - 3y - 7 = 0
Step-by-step explanation:
We can first write this equation in Point Slope form, and then rearrange it to general form.
Note: the given point is (h,k)
Slope is m.
The equation is:
y-k=m(x-h)
Therefore, the equation in point slope form would be:
y+2=1/3(x-1)
Now, we can change that to general form.
y+2=1/3x-1/3
1/3x-1/3-y-2=0
1/3x-y-2 1/3=0
Multiply everything by 3.
x-3y-7=0
Therefore, the corrrect answer is option 3.
Y+7x^2
If it isnt that then it is: y+7x^4
Hope I helped
Answer:
Option 4
Step-by-step explanation:
Equating given length and width to the area :
- 8x(5x) = 490
- 40x² = 490
- x² = 490/40
- x² = 12.25
- x = 3.5
Finding the dimensions :
- length = 8x = 8(3.5) = 28 units
- width = 5x = 5(3.5) = 17.5 units
Answer:
135????
Step-by-step explanation:
