The z-score for 36,000 is (36,000 - 40,000) / (15,000 / √25) = -1.333
The z-score for 42,000 is (42,000 - 40,000) / (15,000 / √25) = 0.6667
P(36,000 < x < 42,000) = P(-1.3333 < z < 0.6667)
P(z < 0.6667) - P(z < -1.3333)
0.7475 - 0.0913
0.6562
The slope-intercept form is
y
=
m
x
+
b
, where m is the slope and b is the y-intercept.
y
=
m
x
+
b
Reorder −
1/4 and −
x
.
y
=
−
x
−
1
/4
hope this helped :3
First convert all numbers into inches since that is the answer being solved for.
1 yard =36 inches
4.5 x 36 = 1,620 inches
1 foot = 12 inches
3 x 12 = 36 inches
36 + 8 = 44 inches
Now take 1,620 inches (starting ribbon measure) and subtract 44 inches (what was left over) to get the inches used to trim curtains.
1,620 inches - 44inches =
1,576 inches were used to trim the curtains.
Answer:
it is 63.3 , If I am not mistaken
Step-by-step explanation:
you set up a proportion so two fractions basically
42.2 on top of 6 , then y on top of 9
bc both 9 and 6 are x's so you can put them both as denominators or numerators . Anywhere but they have to be in the same position.
so after you do your fractions (proportions) you cross-multiply- divide or also called the butterfly method.
42.2×9= 379.8/ 6 = 63.3
