Answer:
<h3>23</h3>
<u>Data is:</u>
<u>Mean:</u>
<u>Standard deviation:</u>
- σ =
Correct choice is d
<h3>24</h3>
<u>Data is:</u>
- -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5
<u>Mean:</u>
- (-5 -4 - 3 - 2 - 1 + 0 + 1 + 2 + 3 + 4 + 5)/11 = 0
<u>Standard deviation:</u>
- σ =
Correct choice is d
<h3>25</h3>
<u>Data is:</u>
<u>Mean is:</u>
<u>Standard deviation:</u>
- σ =
≈ 1.4
Correct choice is d
If you get paid a salary, and you want to know the weekly amount of pay, you need to determine the number of weeks in a year. Sure, you might say "But that's 52 weeks". Wrong. There are 365.25 days in a year (364 but then an extra day every 4th or leap year) There are 7 days in a week. So the number of weeks in a year is: 365.25/7 = 52.1785715285714 weeks This is usually rounded to 2<span>decimal places: 52.18 weeks Therefore, for a salary of 60 000 p.a., </span>
Answer:
Area of rhombus is 105.84 cm².
Step-by-step explanation:
Area of rhombus is given by
- Area = diagonal ¹ × diagonal ² / 2
- = 8.4 + 8.4 × 6.3 + 6.3 / 2
- = 16.8cm × 12.6 cm /2
- = 211.68 cm²/2
- = 105.84 cm²
Answer:
4
Step-by-step explanation:
If she wants to put 2 on each invitation, then we multiply the amount of invitations she has by the amount of stickers going on each invitation. 7 times 2 is 14.
She has 10 stickers, and she needs 14 in total, so we subtract 10 from 14 and we get 4.
In conclusion, the girl needs 4 sticks more
Translations move the pre-image horizontally or vertically, but retain its orientation.
Reflections reflect across axes, mirroring the pre-image. Reflections result in a change of orientation.
Dilations stretch or shrink the pre-image by a scale factor; they change the pre-image's size but retain the pre-image's orientation.
Rotations rotate around a center point, but don't change the direction of the shape (its orientation).
Answer:
g. reflections
