3 years ago

Can someone check my work for me

Mathematics

2 answers:

irga5000 [103]3 years ago

7 0

Answer:

Step-by-step explanation:

uranmaximum [27]3 years ago

5 0

The answer to your question is C

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Please help on this. I am confused.

neonofarm [45]

The answer is 2x^2-3x-2.

To solve this, you take f(x)-g(x) which is 2x^2-5-3x+3. This simplifies to 2x^2-3x-2.

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2 years ago

the total price of 6 movie tickets is 71.40 if each ticket cost the same amount how much does one movie ticket cost

mr Goodwill [35]

Answer:

11.9

Step-by-step explanation:

71.40 divided by 6

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2 years ago

In triangle XYZ, the measure of angle YXZ is 14.5*, and the measure of angle XYZ is 75. What is the measure of

sergiy2304 [10]

I believe the measure of angle XZY is 90.5°

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2 years ago

If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time ca

aleksandr82 [10.1K]

Answer:

(a)8.0mg

(b)36.87 hours

(c)-0.168

Step-by-step explanation:

The amount of Valium in that person's bloodstream at any time can be modeled with the exponential decay function $A ( t ) = 10 e^{ -0.0188 t$ (t in hours)

(a)After 12 Hours

$A ( 12) = 10 e^{ -0.0188*12}\\=7.98\\\approx 8.0 mg $(to the nearest tenth of a milligram)$

(b)If A(t)=5mg

Then:

$5= 10 e^{ -0.0188 t}\\$Divide both sides by 10\\0.5=e^{ -0.0188 t}\\$Take the natural logarithm of both sides\\ln (0.5)=-0.0188 t\\t=ln (0.5) \div (-0.0188)\\$t=36.87 hours (to two decimal places.)$

(c)

$A ( t ) = 10 e^{ -0.0188 t}\\A'(t)=10(-0.0188)e^{ -0.0188 t}\\A'(t)=-0.188e^{ -0.0188 t}\\$At 6 hours, the rate at which the amount of Valium is decaying therefore is:\\A'(6)=-0.188e^{ -0.0188*6}\\$=-0.168 ( to three decimal places)$

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2 years ago

1. Find the midpoint of AB<br> given A(-3, -4) and B(1,6)

emmainna [20.7K]

Answer:

-1,1

Step-by-step explanation:

because if you plot the points that is half.

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2 years ago