2 years ago

Evaluate223×225Give your answer as a mixed number in its simplest form.

Mathematics

1 answer:

Feliz [49]2 years ago

5 0

The answer is 50, 175

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The concentration, in parts per million, of a type of antibiotic in a human's bloodstream after h hours can be modeled by the po

saveliy_v [14]

Answer:

$C(3)=17.69\ ppm$

Step-by-step explanation:

Given:

Given polynomial function is.

$C(h)=-0.09h^{2} +3.5h+8$

Hours $h=3$

We need to find the concentration of the antibiotic after 3 hours.

Solution:

Rewrite the given polynomial function as.

$C(h)=-0.09h^{2} +3.5h+8$

Substitute $h=3$ in given polynomial function.

$C(3)=-0.09(3)^{2} +3.5\times 3+8$

$C(3)=-0.09\times 9+10.5+8$

$C(3)=-0.81+10.5+8$

$C(3)=-0.81+18.5$

$C(3)=17.69\ ppm$

Therefore, the concentration of the antibiotic after 3 hours $C(3)=17.69\ ppm$ .

8 0

4 years ago

if you answered 37 items correctly on a test and received a score of 74%how many items were on the test?

cupoosta [38]

74/100=34/n
cross multiply proportion
74n=3400
then divide both sides by 74
n= ~46

5 0

3 years ago

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Please find the indicated power. (-3)2 = (-6)4 = (-1)8 =

VMariaS [17]

1: (-3)2= -6
2: (-6)4= -24
3: (-1)8= -8

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3 years ago

Whats 6 3/5 subtracted by 34/5

Ksju [112]

Well you change 6 and 3 5ths into a improper fraction= 33/5 and that equals -1/5

6 0

3 years ago

Find the midpoint of the line segment joining the points (-5, 2) and (3. -8).

egoroff_w [7]

Hey there! :)

Answer:

(-1, -3)

Step-by-step explanation:

Use the midpoint formula to derive the coordinates of the midpoint:

$(x_{m} ,y_{m} ) = (\frac{x_{1} +x_{2} }{2}, \frac{y_{1}+ y_{2} }{2} )$

Plug in the coordinates given:

$(\frac{-5+3 }{2}, \frac{2-8 }{2} )$

Simplify:

$(\frac{-2 }{2}, \frac{-6 }{2} )$

(-1, -3) are the coordinates of the midpoint.

3 0

4 years ago

Read 2 more answers