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Goshia [24]
2 years ago
8

-8y + 6 + 4y >14

Mathematics
2 answers:
Vlada [557]2 years ago
7 0
So
try to get the placeholder by itself
add like terms
-8y+4y+6>14
-4y+6>14
subtract 6 from both sdies
-4y>8
multiply by -1
remember if multiply  by -1 then flip sign
4y<8
divide by 4
y<2

so y<2
Romashka [77]2 years ago
7 0
-8y+6+4y>14

-4y+6>14

<u>-4y>8</u>

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To estimate the difference we need four averages for the categorized groups i.e., control group before change, control group aft
nataly862011 [7]

Answer:

b. False

Step-by-step explanation:

In a research study, when a researcher wants to find the impact of a new treatment, then the researcher randomly divides the the study participants into two groups. The groups are :

-- control group

-- treatment group

The control group is a group that is used to establish the cause-and-effect relationship by making the effect of an independent variable isolate. It receives no treatment or some standard treatment for the which the effect is already known.

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3 years ago
Surface Area of the pyramid
hichkok12 [17]

Answer:

C

Step-by-step explanation:

the total surface area of such a pyramid is the sum of 5 areas :

1 bottom square (8×8)

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baseline × height / 2

now, we know the baseline of the 4 triangles, but what is their height (at least we know, all 4 have the same height, as the pyramid is totally regular) ?

the height of the side triangles is the slant height of the pyramid (the distance from the middle of a sideline to the top of the pyramid).

we get this by imagining a right-angled triangle inside the pyramid :

one leg is the inner height of the pyramid.

the second leg is the connection on the bottom square from the base of the inner height to the middle point of a sideline). this is half the length of a sideline.

and the baseline (Hypotenuse) is the slant height of the pyramid.

we can use Pythagoras

c² = a² + b²

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slant height² = 7² + (8/2)² = 49 + 4² = 49 + 16 = 65

slant height = sqrt(65) = 8.062257748... in

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and we get as total surface area

64 + 128.996124... = 192.996124... in² ≈ 193.00 in²

8 0
1 year ago
500=100(x-1)<br> Someone tell me step by step
Andre45 [30]
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