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3 years ago

❗️Please help BIG POINTS❗️

Mathematics

1 answer:

Inessa [10]3 years ago

5 0

Dude, what kind of question is this??? Here's my best shot.
If they start at the 32-mile mark, then the we can use 32 as the intercept. 50 can be the change in position over time, so
y=50x+32 (?)

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When a certain drug is taken orally, the concentration of the drug in the patient's bloodstream after t minutes is given by

sineoko [7]

The time when the maximum serum concentration is reached is obtained by equating the derivative of C(t) to 0.
i.e. dC(t)/dt = 0.06 - 2(0.0002t) = 0.06 - 0.0004t = 0
0.0004t = 0.06
t = 0.06/0.0004 = 150
Therefore, the maximum serum concentration is reached at t = 150 mins

The maximum concentration = 0.06(150) - 0.0002(150)^2 = 9 - 0.0002(22,500) = 9 - 4.5 = 4.5
Therefore, the maximum concentration is 4.5mg/L

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2 years ago

How many gallons did she purchase, the equation,and car get in 20 miles gallon

Alexus [3.1K]

$15 that the answer. Your welcome

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2 years ago

1. Mr. Terry had $70 to purchase school supplies

pentagon [3]

Answer:

Mr. Terry has $36.60 left after these purchases.

Step-by-step explanation:

1. Multiply the amount of glue sticks purchased by their singular cost.

24 x 1.15= 27.6

2. Multiply the amount of pencil packs purchased by their singular cost.

10 x 0.58= 5.8

3. Add the solutions.

27.6+5.8=33.4

4. Subtract 33.4 from 70.

70-33.4=36.60

6 0

1 year ago

Describe how to transform the quantity of the third root of x to the fourth power, to the fifth power into an expression with a

Novosadov [1.4K]

Answer:

$x^{\frac{20}{3} }$

Step-by-step explanation:

To write: third root of x to the fourth power, to the fifth power into an expression with a rational exponent

Solution:

Exponent refers to the number of times a number is multiplied to itself.

Exponent is sometimes also known as power.

Third roots of $x=x^{\frac{1}{3} }$

Third root of x to the fourth power $(x^{\frac{1}{3} })^4 =x^{\frac{4}{3} }$

Third root of x to the fourth power, to the fifth power $=(x^{\frac{4}{3} })^5= x^{\frac{20}{3} }$

8 0

3 years ago

WHOEVER IS CORRECT GETS 55 POINTS!!! PLZ HELP FASTTTTT!!!!!!!martin throws a ball straight up in the air. the equation h(t)=-16t

weqwewe [10]

Given that Martin throws a ball straight up in the air.

The equation $h(t)=-16t^2+40t+5$ gives the height of the ball, in feet, t seconds after martin releases it.

We need to determine the time that it takes the ball to hit the ground.

<u>Time taken:</u>

To determine the time 't', let us equate h(t) = 0 in the equation $h(t)=-16t^2+40t+5$

Thus, we have;

$0=-16t^2+40t+5$

Switch sides, we get;

$-16 t^{2}+40 t+5=0$

Now, we shall solve the equation using the quadratic formula.

Thus, we have;

$t=\frac{-40 \pm \sqrt{40^{2}-4(-16) 5}}{2(-16)}$

Solving, we get,

$t=\frac{-40 \pm \sqrt{1600+320}}{-32}$

$t=\frac{-40 \pm \sqrt{1920}}{-32}$

$t=\frac{-40 \pm 8\sqrt{30}}{-32}$

$t=\frac{8(-5 \pm \sqrt{30})}{-32}$

Cancelling the common terms, we get,

$t=\frac{-5 \pm \sqrt{30}}{-4}$

Thus, the roots of the equation $t=\frac{-5 + \sqrt{30}}{-4}$ and $t=\frac{-5 - \sqrt{30}}{-4}$

Simplifying the roots, we get,

$t=\frac{-5 +5.477}{-4}$ and $t=\frac{-5 -5.477}{-4}$

$t=-0.119$ and $t=2.619$

Since, t cannot take negative values, then $t=2.619$

Hence, It takes 2.6 seconds for the ball to hit the ground.

8 0

3 years ago