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SIZIF [17.4K]
3 years ago
11

PLEASE HELPP!!

Mathematics
1 answer:
klio [65]3 years ago
7 0

Answer:

all the children at the park are older than 3 years old

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What is the measure of \angle x∠xangle, x?<br> Angles are not necessarily drawn to scale.
natita [175]

Answer:

74 degrees

Step-by-step explanation:

You can see this is a supplementary angle, which means that it is a straight line with a line sticking out. This means the two angles add up to 180 degrees, so 180 - 106 = 74, which is your answer.

7 0
3 years ago
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A compound contains 40% calcium, 12% carbon, and 48% oxygen by mass. What is the empirical formula of this compound?
astraxan [27]

Answer:

3

Step-by-step explanation:

Explanation:

Although you have not been provided with direct masses, you can use the percentage composition values in place of masses.

First, calculate the number of moles of each element:

This is the formula for the ionic compound calcium carbonate, confirming that our result is indeed in the magnitude of a plausible answer. In fact, given the fact that calcium carbonate is ionic, it is also true that this empirical formula equates to the unit formula of the compound.

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3 years ago
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balandron [24]
Since d x pi = circumference
I use 3.14 as pie

I did 9 x pi = 28.26 I DID NOT divide this by two because there are three half circles and 28.26 counts as two of them

Since there is another half circle I divide 28.26 by 2

28.26 + 14.13 = 42.39

Now plus the bottom length

42.39 + 9 = 51.39


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A gallon of water weighs 8.354 pounds.simon uses 11.81 gallons of water taking a shower.about how many pounds of water did simon
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