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Natali [406]
3 years ago
8

Guys Urgent Help me this example3.9 plzzz

Mathematics
1 answer:
patriot [66]3 years ago
6 0

Answer:

A Hope this helps!!

Step-by-step explanation:

A because it doesn't matter who gets chosen for the committee there is still going to be more girls than boys but it doesn't have to be a must and it's not B because it would be 3 girls and 2 boys

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Carlos has taken an initial dose of a prescription medication.
Marat540 [252]

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

M(t)=20 e^{-0.86t}

Where

M(t) is the amount of medication remaining in mg

t is the time it takes, in hours

The questions asks HOW LONG it will take to make the remaining medication to 1 milligrams (1 mg)??

We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48

<u>Note: </u> Ln(e) = 1

This means, the amount of time it will take is about 3.48 hours

8 0
3 years ago
Simplify(-4.5(-6(5.4
kherson [118]
If this is all multiplication
145.8
8 0
3 years ago
Read 2 more answers
Use (&lt;,&gt;,=) to compare 2/3 and 3/4
lina2011 [118]
2/3 < 3/4. Hope that helps
3 0
3 years ago
Pls help me this is 7th grade math
Ymorist [56]

Answer:

118 degrees

Step-by-step explanation:

180-62 = 118

8 0
3 years ago
10 points
ollegr [7]

Answer:

FC=25.9

Step-by-step explanation:

<u>Congruent Triangles</u>

The figure shows two triangles FCD and FED. One of their sides is the radius of the circle, they both form a 90° angle with the line CD and ED and they share the same segment FD.

Thus, both triangles are congruent and we have the length of a side (12 units), one common side (the hypotenuse) and one unknown leg that must be equal. Therefore

13x-16=4x+11

Solving

9x=27

x=3

The required side FD is the hypotenuse of any of the triangles. The unknown leg can be calculated by

13x-16=23

Or

4x+11=23

Thus

FD^2=12^2+23^2=673

Solving

FD=\sqrt{673}

\boxed{FC=25.9}

5 0
3 years ago
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