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Alona [7]
1 year ago
7

Difference of 86.42 - 2.1.

Mathematics
2 answers:
astraxan [27]1 year ago
5 0
<h2>Answer:</h2><h2>A</h2><h2>Hope this helps!!</h2>

densk [106]1 year ago
3 0

Answer:

The first one

Step-by-step explanation:

The decimals line up when you subtract them

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Ampicillin 250 mg IM every 12 hours is ordered. After reconstitution, there's 125 mg/mL. How many mL would you give?
Vanyuwa [196]

Answer:

Correct choice is C. 2 mL.

Step-by-step explanation:

Given that Ampicillin 250 mg IM every 12 hours is ordered. After reconstitution, there's 125 mg/mL. Now we need to find about how many mL would you give.

Let number of ml needed = x.

Since ratio of mg per mL will be fixed so we get equation:

\frac{mL}{mg}=\frac{x}{250}=\frac{1}{125}

\frac{x}{250}=\frac{1}{125}

x=\frac{1}{125} \times 250

x=\frac{250}{125}

x=2

Hence correct choice is C. 2 mL.

4 0
2 years ago
If the diagonal of a square is 11.3 meters, approximately what is the perimeter of the square
Natalija [7]
The length of each side can be found using pythagoras theorem:-

11.3^2 = 2x^2     where x = length od each side
x = sqrt( [11.3^2  / 2)
x =  7.99 meters
5 0
2 years ago
Read 2 more answers
A law firm charges a client according to the function f(x)=4(x+2) , where x represents the number of hours spent on the client’s
Zigmanuir [339]

Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x ---> the number of hours spent on the client’s case each week

f(x) ---->  the total charge that week in hundreds of dollars

we have

f(x)=4(x+2)

distribute

f(x)=4x+8

This is the equation of the line in slope intercept form

where

The slope or unit rate is

m=4

The y-intercept or initial value is

b=8

To graph the line we need minimum two points

Find the x-intercept

For f(x)=0

0=4x+8\\4x=-8\\x=-2

The x-intercept is the point (-2,0)

so

we have

the points (-2,0) and (0,8)

To graph the line, plot the intercepts, connect them and join the points

The graph in the attached figure

Remember that the value of x and the value of f(x) cannot be a negative number

3 0
2 years ago
Find the volume of the composite solid. Round to the nearest tenths. Radius:2 height:4
yKpoI14uk [10]

Answer:

60

Step-by-step explanation:

6 0
2 years ago
Two boats depart from a port located at (–10, 0) in a coordinate system measured in kilometers, and they travel in a positive x-
stiks02 [169]
To get the points at which the two boats meet we need to find the equations that model their movement:
Boat A:
vertex form of the equation is given by:
f(x)=a(x-h)^2+k
where:
(h,k) is the vertex, thus plugging our values we shall have:
f(x)=a(x-0)^2+5
f(x)=ax^2+5
when x=-10, y=0 thus
0=100a+5
a=-1/20
thus the equation is:
f(x)=-1/20x^2+5

Boat B
slope=(4-0)/(10+10)=4/20=1/5

thus the equation is:
1/5(x-10)=y-4
y=1/5x+2

thus the points where they met will be at:
1/5x+2=-1/20x^2+5
solving for x we get:
x=-10 or x=6
when x=-10, y=0
when x=6, y=3.2
Answer is (6,3.2)
5 0
2 years ago
Read 2 more answers
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