1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
a_sh-v [17]
4 years ago
10

Assume that after t hours on the job, a factory worker can produce 100te^-.5t units per hour. How many units does the worker pro

duce during the first three hours?
Mathematics
1 answer:
VMariaS [17]4 years ago
5 0
The number of units produced by the worker during t hours of work can be modelled by the following function:

N(t)=100t e^{(-0.5t)}

To find the number of units produced during first 3 hours, we can substitute 3 for t. This will give us the number of units produced by the worker during first 3 hours.

N(3)=100(3) e^{-0.5(3)} = 67

Thus the worker will produce 67 units during the first 3 hours of the work. 
You might be interested in
X squared minus 25 equals 0
Yuri [45]
x^2-25=0\\
x^2=25\\
x=\sqrt{25}\\ x=-5 \vee x=5

or

x^2-25=0\\
(x+5)(x-5)=0\\
x=-5 \vee x=5

7 0
4 years ago
Pls answer I really need help<br> Brainlist and thank you will be the reward thank you so much!!!
castortr0y [4]

Answer:

<h2>0.667 ✅</h2>

Step-by-step explanation:

This is best solved using a proportion.

The formula is soy/vinegar = soy/vinegar where one of these is a variable.

Here we have:

\frac{150}{100} = \frac{1}{x}

Now, we solve this by cross multiplying.

150x = 100

Dividing both sides by x, we get x = 2/3 or about 0.667.

Checking:

\frac{150}{100} = \frac{1}{0.667}

1.5 = 1.5 ✅

<h2>I'm always happy to help :)</h2>
4 0
4 years ago
Mopeds (small motorcycles with an engine capacity below 50 cm3) are very popular in Europe because of their mobility, ease of op
Anika [276]

Answer:

The probability that the maximum speed is at most 49 km/h is 0.8340.

Step-by-step explanation:

Let the random variable<em> </em><em>X</em> be defined as the maximum speed of a moped.

The random variable <em>X</em> is Normally distributed with mean, <em>μ</em> = 46.8 km/h and standard deviation, <em>σ</em> = 1.75 km/h.

To compute the probability of a Normally distributed random variable we first need to convert the raw score of the random variable to a standardized or <em>z</em>-score.

The formula to convert <em>X</em> into <em>z</em>-score is:

z=\frac{X-\mu}{\sigma}

Compute the probability that the maximum speed is at most 49 km/h as follows:

Apply continuity correction:

P (X ≤ 49) = P (X < 49 - 0.50)

                = P (X < 48.50)

                =P(\frac{X-\mu}{\sigma}

*Use a <em>z</em>-table for the probability.

Thus, the probability that the maximum speed is at most 49 km/h is 0.8340.

8 0
4 years ago
Suppose that the statement form (p ∨ q) → (r → p) is false. What can you conclude about the truth values of the variables p, q a
ArbitrLikvidat [17]

Answer:

p is false, q is true and r is true

Step-by-step explanation:

  • For (p ∨ q) → (r → p) to be false, the proposition (p ∨ q) must be true and (r → p) false.
  • If (r → p) then r must be true and p is false, we now have truth values for these two
  • Now if (p v q) is true, either p, q or both must be true. Since p is false, it follows that q must be true.

6 0
3 years ago
Y
Genrish500 [490]

We need to find two relations, and use them to find the value of y when z = 15.

We will see that the value of y in that case is 4,860.

We know that <u>y  varies inversely with the square of  x</u>, also <u>y  is also proportional to the cube of  z</u>

Then we can write:

y = k/x^2

y = c*z^3

We also know that:

When x = 3, y = 80.

Replacing that in the first equation to find the value of k:

80 = k/3^2

80 = k/9

80*9 = k = 720

We also know that when x = 2, z = 5

From the first relation we have:

y = 720/2^2 = 720/4 = 180

Now we replace this in the equation of y and z:

y = c*z^3

180 = c*5^3

180 = c*125

180/125 = c = 1.44

Now we need to calculate y when z = 15, then we just need to replace z by 15 in the equation for y and z:

y = 1.44*(15)^3 = 4,860.

If you want to learn more, you can read:

brainly.com/question/2548537

8 0
3 years ago
Other questions:
  • What is 4 3/4 - 2 2/3
    11·2 answers
  • What is the measure of &lt;4?
    7·1 answer
  • During a baseball season, team a scores 9 runs for every 7 runs that team b scores. The total number of runs scored by both team
    12·1 answer
  • Write an equation in slope-intercept form for the line that passes through (5,0) and is perpendicular to the line described by y
    11·1 answer
  • What is the y-intercept of the quadratic y=-2x^2-4x-5 ?<br> (-5,0)<br> (0,-2)<br> (-1,3)<br> (0,-5)
    14·1 answer
  • What are the zeros of the polynomial function?
    13·1 answer
  • On a mathematics test, Michael received a score of 75%. If each problem counted equally, and Michael had 9 problems correct, the
    11·1 answer
  • Please dont let this go by.. I really need help
    14·2 answers
  • What’s the value of a?
    10·2 answers
  • if the probability of picking a pink jelly bean out of a bag is 4/15, what is the probability of not picking a pink jelly bean
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!