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3 years ago

PLZZZZZZ HELPPPPPP i will give BRAINLIEST!!!!!!!!

Mathematics

2 answers:

tresset_1 [31]3 years ago

6 0

Answer:

E: 4,2 D:-4,2

Step-by-step explanation:

hope i helped :)

alexandr1967 [171]3 years ago

3 0

Answer: The coordinates of point E are (4,2). Point E is a reflection of point D across the y axis

Step-by-step explanation:

If you look at point D and point E they are practically the same. The only difference is that point D’s X value is negative and point E has a positive x and y value. If it was a reflection over the X axis it would be on the bottom of the graph.

Reflection over the x axis: bottom or top of original coordinate.

Reflection over the y axis: left or right of original coordinate.

Hope this helps Abi!

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What is the formula to calculate area of square

Pavel [41]

Answer:

Step-by-step explanation:

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If you called your sides "x", then the formula is A = x × x or A = x². Another way to note the area of either a square or a rectangle is to call the "bottom" the base and one of the sides the height and then the area formula looks like this:

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2 years ago

What amount of money can we obtain using the money we have....(its math)

ANTONII [103]

I don’t understand you buddy :/

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3 years ago

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aivan3 [116]

Answer:

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Step-by-step explanation:

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3 years ago

Sabiendo que cada persona unos 4 500 000 glóbulos rojos por milímetro cúbico y que su cantidad de sangre es de 5 litros A) Que l

love history [14]

Answer:

Part A) distance covered by the aligned red cells is: 180000 Km

Part B) 8000000 bacteria (8 million bacteria)

Step-by-step explanation:

Part A)

Let's first find the total number of red cells that the person has in the 5 liters, knowing that there are 4,500,000 of them in a cubic millimetre:

Since 1 liter contains 1,000,000 cubic millimetres, then, in 5 liters there must be 5 times that number of cubic millimetres. That is a total of 5,000,000 cubic millimetres.

Since in each cubic millimetre there are 4,500,000 red cells, then the number of red cells in the 5 liters must be the product of these two quantities:

4,500,000 x 5,000,000 = 22,500,000,000,000 red blood cells.

Now, to find the distance they will cover aligned one after the other, knowing that their average diameter is 0.008 mm is:

22,500,000,000,000 x 0.008 mm= 180000000000 mm

$22.5\,\,10^{12} * 8\,\,10^{-3}=1.8\,\,10^{11}$ mm

In order to convert this distance into Km as requested, we use the fact that 1 mm = 0.000001 Km, or using exponents in base ten:

1 mm = $10^{-6}\,\,Km$

Then, the distance covered in kilometers is:

$1.8\,\,10^{11}\,*\,10^{-6} \,\,Km=1.8\,\,10^{5}\,\,Km=180000\,\,Km$

Part B)

The vaccine contains a total of $10^8$ bacteria per $cm^3$

In order to find how many bacteria we have in 80 $mm^3$ of the vaccine, we first need to convert 80 $mm^3$ into $cm^3$ :

$80\,\, mm^3 = 0.08 \,\,cm^3$

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3 years ago

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LuckyWell [14K]

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3 years ago