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Alexandra [31]
3 years ago
10

The list below show test scores for 1st period on a recent test. Finding the mean deviation. 62 63 64 71 96 97 98 99 100 100

Mathematics
1 answer:
motikmotik3 years ago
6 0

Answer:

16

Step-by-step explanation:

just use a mean absolute deviation calculator next time

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Parallelogram ABCD is similar to parallelogram QRST
k0ka [10]

Answer:

2. reflect parrellelogram ABCD across the x-axis and dilate the result by a scale factor of two centered at the orgigin

Step-by-step explanation:

to correctly map the parallelograms together you need to  dialate the shape, because we already know that its two times bigger

7 0
2 years ago
A rectangular table is fivetimes as long as it is wide. if the area is 80ftsquared​,find the length and the width of the table.
SOVA2 [1]
A = L * W
A = 80
L = 5W

80 = W(5W)
80 = 5W^2
80/5 = W^2
16 = W^2
sqrt 16 = W
4 = W <=== width is 4 ft

L = 5W
L = 5(4)
L = 20 <=== length is 20 ft
3 0
2 years ago
A summarine is only allowed to change his depth by rising Toward the surface in 50 m stages it starts off at negative 235 m how
Vladimir [108]

Answer:

It will take 5 stages to reach the surface.

Step-by-step explanation:

-225/50=4.5 or what times 4.5 equals -225

Hope this helps.

3 0
2 years ago
By which angle measures can the square be rotated so it maps onto itself?
Amanda [17]

The <em><u>correct answers</u></em> are:

90°, 180° and 270°

Explanation:

Squares have rotational symmetry at 90°.  This can be found by dividing the number of degrees in a circle, 360, by the number of sides, 4:

360/4 = 90

This means that at all multiples of 90, the square will rotate onto itself.  This means that 90, 180 and 270 are all correct.

3 0
2 years ago
A Keyboard that originally costs $475 is marked down 15% for a sale what is the New reduced price of the keyboard?
Bas_tet [7]
$403.75
Step 1: 415(.15)
Step 2: 475 - 415(.15)
Step 3: 403.75
4 0
3 years ago
Read 2 more answers
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