Step-by-step explanation:
(3 − 4i) (1 + 5i) − (2 − i)
3 + 15i − 4i − 20i² − 2 + i
1 + 12i + 20
21 + 12i
(a² + 3a − 7) (2a² − a + 4)
a² (2a² − a + 4) + 3a (2a² − a + 4) − 7 (2a² − a + 4)
2a⁴ − a³ + 4a² + 6a³ − 3a² + 12a − 14a² + 7a − 28
2a⁴ + 5a³ − 13a² + 19a − 28
add up the purchases
2(9.95) + 14.95
19.90 +14.95
34.85
now find the sales tax
34.85 * .06 =2.091 = 2.09 (round to 2 decimal places with money)
add the purchases and the sales tax to get the total amount
34.85 + 2.09
$36.94
Answer:
Q1) D Q2) The final statement Q3) first statement Q4) (0,14) and (10,1)
Step-by-step explanation:
Q1) in this D has the most points therefore highest correlation
Q2) there is no correlation because the points cannot form a linear line
Q3) it does not touch all points but is extreamly close ans is therefore considered a correct linear correlation.
Q4) these points have the closest linear correlation
Answer:
maybe like 5k
Step-by-step explanation:
The width of the rectangle is 6.82 meters, while the length of the rectangle is 8.184 meters.
<h3>What is a rectangle?</h3>
A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but the reverse statement may or may not be true.
Let the width of the rectangle be x.
Given that a rectangular room is 1.2 times as long as it is wide. Therefore, the length is 1.2x.
Perimeter = 2(x + 1.2x)
30 meters = 2(2.2x)
30 = 4.4x
x = 6.82
Hence, the width of the rectangle is 6.82 meters, while the length of the rectangle is 8.184 meters.
Learn more about Rectangle:
brainly.com/question/15019502
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