9(4) = 36
5(9) = 45
6(4) = 24
Answer:
0.5532
Step-by-step explanation:
P( 31<X<35.7)
P(X>31)= P(Z>(31-μ)/σ)
= P(Z>(31-34.6)/2.8)
= P(Z> -1.2857)
P(X<35.7)= P(Z<(35.7-μ)/σ)
= P(Z<(35.7-34.6)/2.8)
=P(Z< 0.392857)
From z-distribution table
P(Z< -1.29)= 0.09853
p(Z< 0.39) = 0.65173
P( 31<X<35.7)= P(Z<0.39)- P(Z<-1.29)
= 0.65173- 0.09853
=0.5532
Hi!
<h3>The perimeter is equal to </h3>
<u>l + l + w + w = 62</u>
<h3>The length is 3 feet longer than the width so...</h3>
<u>w + 3 + w + 3 + w + w = 62</u>
<h3>Simplify</h3>
<u>4w + 6 = 62</u>
4w + 6 - 6 = 62 - 6
4w = 56
4w/4 = 56/4
<u>w = 14</u>
<u>14 + 3 = 17</u>
<h2>The width is 14 and the length is 17. </h2>
Hope this helps! :)
-Peredhel
Answer:
Step-by-step explanation:
a. (-4x^2-7) - (-4a^2-7) / x-a
b. (-4(x-h)^2-7) - (-4x^2-7) / h
since there are no numbers to plug in for the variables (a, h, x) there is no possible numerical value for the equations. The format of the equations seems familiar in the sense of limits for calculus, but I could be wrong.
