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3 years ago

Complete A & B please or 1 of them please!

Mathematics

1 answer:

valkas [14]3 years ago

4 0

Answer:

a: 53.5

Step-by-step explanation:

start with BODMAS then go through the motion

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3 years ago

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3 years ago

Given BE= 2x+6 and ED= 5x-12 in a parallelogram ABCD, find BD

Brrunno [24]

1.BE = 2x + 6
ED = 5x - 12
2. To get the entire side of BD, we must add both half's which equals to the entire length.
3. 2x + 6 + 5x - 12
4.Add like terms.
2x + 5x = 7x
-12 + 6 = -6
5. So, we have 7x - 6

=7x - 6

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4 years ago

An independent-measures research study compares three treatment conditions using a sample of n = 5 in each treatment. For this s

slavikrds [6]

Answer: c. 10

Step-by-step explanation:

Given : An independent-measures research study compares three treatment conditions using a sample of n = 5 in each treatment.

For this study, the three sample means are, M1 = 1, M2 = 2, and M3 = 3.

Grand mean = $\overline{X}=\dfrac{M1+M2+M3}{3}$ [All sample have equal elements]

$=\dfrac{1+2+3}{3}=2$

For ANOVA,

$SS_{between}=n\sum(M_i-\overline{X})^2$ , where i= 1, 2 , 3

$SS_{between}=5((1-2)^2+(2-2)^2+((3-2)^2)$

$SS_{between}=5((-1)^2+(0)^2+((1)^2)= 5(1+1)=10$

Hence,the value would be obtained for $SS_{between}=10$ .

hence, the correct answer = c. 10

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3 years ago

Solve the absolute value equation |2x-1|=3

SSSSS [86.1K]

x=2

sorry for the bad handwriting btw.

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3 years ago

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