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Anika [276]
3 years ago
12

Evaluate the following expression. Enter your answer in simplest form.

Mathematics
1 answer:
bogdanovich [222]3 years ago
7 0

Answer:

6.25

Step-by-step explanation:

for starters 4/2 is the same as 2 because 4/2=2 so just right it as 2

so 1/2+2^2

this is a proper way to write it

so 1/2 is 0.5 so then 0.5 plus 2 is 2.5

then you square it, when there is a 2 above it that means suare it, and in that case you multiply it by itself

so 2.5*2.5 is 6.25

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I FOUND THEM THEY ARE HIDING IN THE CLOUDS.
5 0
2 years ago
M is the midpoint of QR<br><br> M = (-2,6)<br> Q= (8,-10)<br> R = ????
Zolol [24]

Answer:

R = (-12, 22)

Step-by-step explanation:

Unfortunately it's not a straight line, so gonna need to put in some extra work. Basically think of it like breaking it into it's horizontal and vertical components then doubling them.

From Q to M you move 10 spaces to the left, so to go from M to R you will go another 10 to the left.  Similarly, you start at -10 for the y value and go up 16 to 6, and you  will need to go up another 16 to get to R.

So for x, 8 -10 = -2 then -2 - 10 = -12, so R's x value is -12

y we do the same thing.  Gonna do it in one step though.  -10 + 16 + 16 = 22

So R is (-12, 22)

4 0
3 years ago
Write and solve an equation for the relationship described below. Four times a number plus three is the same as five plus the nu
dsp73
<span>Answer: 4*x+3=5+x
Explanation: four times a number means 4*x plus three means 4*x+3 is the same as which means = five plus the number which is 5+x </span>
3 0
3 years ago
A 100 mL vial of 25% solution is available in stock. An order is recieved for 6 g to be added to 250 mL of fluid for an iv infus
Ne4ueva [31]

9514 1404 393

Answer:

  274 mL

Step-by-step explanation:

Often medical solutions expressed as a percentage are not really a percentage as such. A percentage is the ratio of two quantities with the same units.

Here, the context given by the problem suggests the "25%" solution is really (25 g)/(100 mL). That is, the units are grams and milliliters--different units.

With that assumption, we want to find the volume (v) of solution needed to deliver 6 g of medicine. An appropriate proportion* is ...

  v/(6 g) = (100 mL)/(25 g)

  v = (6 g)(100 mL)/(25 g) = 24 mL

So, the total volume of the infusion is ...

  250 mL +24 mL = 274 mL

_____

* The concentration is given in terms of g/mL, but we have used a proportion that is mL/g. The reason for that is we want the variable to be in the numerator of the ratio. The variable here represents volume, so we have written the proportion with volumes in the numerators.

Having the variable in the numerator means the equation can be solved in one step--by multiplying by its denominator.

3 0
3 years ago
What conversion factor should be used to convert from gigaliters to liters?
GarryVolchara [31]
<span>The correct answer is 10^9  happy to help! </span><span />
5 0
3 years ago
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