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oksian1 [2.3K]
3 years ago
9

Lucia draws a square and plots the center of the square. (image)

Mathematics
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Lucia's claim is correct since any rotation that is a multiple of 45° carries a square onto itself

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juin [17]
Take a better pic and I might be able too
6 0
3 years ago
An alternating current. I Amperes, is given by i = 10sin2nft.where f is the frequenct in Hertz and t the time in seconds.What is
defon

Answer:

150

Step-by-step explanation:

8 0
3 years ago
URGENT will give brilliant mark For the reaction 2Na + Cl2 ------ 2NaCl, how many grams of sodium chloride can be produced from
SVETLANKA909090 [29]

Answer:

825 g

Step-by-step explanation:

Here's my work:

500g Cl2 l   1mol Cl2  l  2 mol NaCl   l  58.5 g NaCl

                l   71 g Cl2    l  1 mol Cl2      l    1 mol NaCl  

= 823.94  - the rounding can be a little off

The first thing you have to do is convert the 500 g of Cl2 into moles.  So you get the mass of Cl which is 35.5, but Cl is diatomic by itself so you multiply 35.5 x 2 and get 71.   now on the third column you are comparing the mol ratios of the equation.  The equation is 2Na + Cl2 ---> 2NaCl, so you see that there is no coefficient in front of Cl2 so that means there is 1 mol, and then you see that in the product there is a  coefficient of 2 in front of NaCl so that means there is 2 moles.  Then finally you have to convert the moles backs into grams where you just add the masses of Na and Cl .  You multiply across the top  and then divide that number by the bottom row.

6 0
3 years ago
Write the following decimals as fractions in simplest form
rewona [7]
-19/25 if you simply it by 4
7 0
3 years ago
21y+7x=56? what is the value of X
PSYCHO15rus [73]

Answer:

x = 8 - 3y

Step-by-step explanation:

21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}

Hope this helps.

4 0
3 years ago
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