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ser-zykov [4K]
3 years ago
13

PLS HELPPPPPPPPPPPPPPPP

Mathematics
1 answer:
dezoksy [38]3 years ago
8 0
All -1.8

In addition and subtraction the order of the numbers does not matter, so the result will always remain the same
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Graeco-Latin Square is a form of blocking by one variable. a form of blocking by four variables. a form of blocking by three var
antoniya [11.8K]

Answer:

A form of blocking by three variables.

Step-by-step explanation:

Graeco-Latin square design is a special type of comparative design.

Graeco-Latin square design uses 3 blocking variables unlike the 2 blocking variable as used by the standard Latin square design.

In this square design of experiment, the experimental units are grouped into three different ways.

8 0
3 years ago
What is the image of (3,9) after a dilation by a scale factor of 3 centered at the origin
Sav [38]

Answer:

(9, 27 )

Step-by-step explanation:

Since the dilatation is centred at the origin, multiply each of the coordinates of the original point by the scale factor of 3

(3, 9 ) → (3(3), 3(9)) → (9, 27 )

7 0
4 years ago
Read 2 more answers
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
weqwewe [10]

Answer:

8(15-m)

Step-by-step explanation:

By looking at the options, we can understand that the right one is 8(15-m), since we need to multiply the time by the number of question.

Also, we can check that result by arranging an equations usint the total time.

55 = 3m - 8(15-m)

55 = 3m - 120 + 8m

55 = 11m - 120

55 + 120 = 11m

175 = 11m

m = 175/11 = 15.91

55 = 3*15.91 - 8(15-15.91) = 47.73 - 120 + 127.28 = 55.01 ≈ 55

6 0
3 years ago
−7 − 3a = 17, then \frac{3}{4}a = ____?
Ilia_Sergeevich [38]

Answer:

-9/2

Step-by-step explanation:

-7-3a=17

-1-17=3a

-18=3a

a=-18/3

a=-6

The value of fac{3}{4} a = (3/4)(-6)

                                      = -18/4

                                      = -9/2

3 0
3 years ago
What is 10 of 25%......................................
tia_tia [17]


the math behind it: 
your equation looks like this: .25x = 10 
then you divide both sides by .25 and then ur equation looks like this: x=40 
by the way the variable x stands for the number you are looking for. and since x=40, the number you are looking for is 40 
well i hope i helped!
3 0
3 years ago
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