Answer:
v min (-2;-3)
Step-by-step explanation:
its going to be a parabola with a minimum of (-2;-3) I hope it helps
Wet is a description or effect of something when a cause happens. So, water isn't wet, but when we touch it, we get wet.
Answer:
[ 502.5, 517.5]
Step-by-step explanation:
Given:
Mean of the sample, µ = 510
Total sample size, n = 100
Standard deviation = 75
Confidence level = 95%
Now,
The interval for µ is given as:
⇒ µ ± 
for 95% confidence level z value = 1.96
Thus,
The interval for µ
⇒ 510 ± 
or
⇒ 510 ± 7.5
or
⇒ [ 510 - 7.5, 510 + 7.5 ]
or
⇒ [ 502.5, 517.5]
I’m pretty sure the answer is c but not quite sure I’ve had this before
We can write this question as an equation to solve it. Using L for length and W for width we know that
L+L+W+W=perimeter
2L+2W=perimeter
We can put the value of the perimeter into this
2L+2W=156cm
Next, we have to make sure all the terms (letters) are the same so we can solve it. This means we have to rewrite either the length or width in terms of the other.
We know the width is 12cm less than the length, which is the same as saying L-12
Then we substitute this into the equation and solve L
2L+2(L-12)=156
2L+2L-24=156
4L-24=156
4L=180
L=45cm
Next we use this value to find W.
45-12=33
W=33cm
