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
andrey2020 [161]
3 years ago
9

Jan received -22 points on her exam. She got 11 questions wrong out of 50 questions. How much was Jan penalized for eat wrong an

swer?
HELPPP

Mathematics
1 answer:
sammy [17]3 years ago
8 0

the answer that i think it is 30

You might be interested in
Help me please!!<br> hurry
zubka84 [21]

Answer:

n-3

Step-by-step explanation:

for every input, the output is three less (4-3=1, 7-3=4, 8-3=5). That rule needs to stay consistent, so no matter what the input is (n), the output is always going to be three less than, making it y or output=n-3

6 0
2 years ago
Write an explicit formula for the geometric sentence
Agata [3.3K]

Answer:

aⁿ=4(−1)ⁿ⁻¹/3ⁿ

Step-by-step explanation:

use the formula an=a1rⁿ⁻¹

aⁿ=4(−1)ⁿ⁻¹/3ⁿ

5 0
2 years ago
What mistake did he likely make?
gogolik [260]

Answer:

please let me know if you need anything else from Ghana and polyatomic element of surprise me if you need anything else<em> from</em><em> me</em><em> please</em><em> let</em><em> me</em><em> know</em><em> </em><em>h</em><em>ow</em><em> it</em><em> goes</em><em> and</em><em> if</em><em> you</em><em>'re</em><em> not</em><em> busy</em><em> I</em><em> can</em><em> get</em><em> a</em><em> ride</em><em> to</em><em> the</em><em> airport</em><em> on</em><em> Friday</em><em> and</em><em> polyatomic</em><em> element</em><em> of</em><em> surprise</em><em> me</em><em> if</em><em> you</em><em> need</em><em> anything</em><em> else</em><em> from</em><em> me</em><em> please</em><em> let</em><em> me</em><em> know</em><em> if</em><em> you</em><em> need</em><em> anything</em><em> else</em><em> from</em><em> me</em><em> please</em><em> let</em><em> me</em><em> know</em><em> if</em><em> you</em><em> need</em><em> anything</em><em> else</em><em> from</em><em> me</em><em> please</em> let me know if you need anything else from me please let me know if you need anything else from me please let me know if you need<em><u> anything</u></em><em><u> else</u></em><em><u> from</u></em><em><u> me</u></em><em><u> please</u></em><em><u> let</u></em><em><u> me</u></em><em><u> know</u></em><em><u> if</u></em><em><u> you</u></em><em><u> need</u></em><em><u> anything</u></em><em><u> else</u></em><em><u> from</u></em><em><u> me</u></em><em><u> please</u></em><em><u> let</u></em><em><u> me</u></em><em><u> know</u></em><em><u> if</u></em><em><u> you</u></em><em><u> need</u></em><em><u> anything</u></em><em><u> else</u></em><em><u> from</u></em><em><u> me</u></em><em><u> please</u></em>

6 0
3 years ago
Please help with the question
Artyom0805 [142]

I find it convenient to look at the differences and the rate at which those differences are made up.

8. Jim is closing the $150 gap at the rate of $7.50 per week. He will catch up in

... 150/(7.5/week) = 20 weeks

9. At noon, the price of Stock A has increased by 0.05×3 = 0.15, so is now $15.90, which is $0.63 more than Stock B at that time. The prices are closing the gap at the rate of $0.05 +0.13 = $0.18 per hour, so will be the same after

... $0.63/($0.18/hour) = 3.5 hours . . . . after noon, at 3:30 pm

_____

You can also write and solve equations for the prices of the stocks. Or you can use a graphing calculator to tell you the solution. When equations are involved, I like to solve them the simplest possible way: let technology do it.

You are given the value at a time, and the rate of change of that value, so the equations are easily written in point-slope form. You will note that the common price at 3:30 pm (15.5 hours after midnight) is one that is not a whole number of cents. (That's usually OK for when trading stocks.)

4 0
3 years ago
Use Stokes' Theorem to evaluate C F · dr where C is oriented counterclockwise as viewed from above. F(x, y, z) = yzi + 4xzj + ex
natima [27]

Answer:

The result of the integral is 81π

Step-by-step explanation:

We can use Stoke's Theorem to evaluate the given integral, thus we can write first the theorem:

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S curl \vec F \cdot d\vec S

Finding the curl of F.

Given F(x,y,z) = < yz, 4xz, e^{xy} > we have:

curl \vec F =\left|\begin{array}{ccc} \hat i &\hat j&\hat k\\ \cfrac{\partial}{\partial x}& \cfrac{\partial}{\partial y}&\cfrac{\partial}{\partial z}\\yz&4xz&e^{xy}\end{array}\right|

Working with the determinant we get

curl \vec F = \left( \cfrac{\partial}{\partial y}e^{xy}-\cfrac{\partial}{\partial z}4xz\right) \hat i -\left(\cfrac{\partial}{\partial x}e^{xy}-\cfrac{\partial}{\partial z}yz \right) \hat j + \left(\cfrac{\partial}{\partial x} 4xz-\cfrac{\partial}{\partial y}yz \right) \hat k

Working with the partial derivatives

curl \vec F = \left(xe^{xy}-4x\right) \hat i -\left(ye^{xy}-y\right) \hat j + \left(4z-z\right) \hat k\\curl \vec F = \left(xe^{xy}-4x\right) \hat i -\left(ye^{xy}-y\right) \hat j + \left(3z\right) \hat k

Integrating using Stokes' Theorem

Now that we have the curl we can proceed integrating

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S curl \vec F \cdot d\vec S

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S curl \vec F \cdot \hat n dS

where the normal to the circle is just \hat n= \hat k since the normal is perpendicular to it, so we get

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S \left(\left(xe^{xy}-4x\right) \hat i -\left(ye^{xy}-y\right) \hat j + \left(3z\right) \hat k\right) \cdot \hat k dS

Only the z-component will not be 0 after that dot product we get

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S 3z dS

Since the circle is at z = 3 we can just write

\displaystyle \int\limits_C \vec F \cdot d\vec r = \int \int_S 3(3) dS\\\displaystyle \int\limits_C \vec F \cdot d\vec r = 9\int \int_S dS

Thus the integral represents the area of a circle, the given circle x^2+y^2 = 9 has a radius r = 3, so its area is A = \pi r^2 = 9\pi, so we get

\displaystyle \int\limits_C \vec F \cdot d\vec r = 9(9\pi)\\\displaystyle \int\limits_C \vec F \cdot d\vec r = 81 \pi

Thus the result of the integral is 81π

5 0
3 years ago
Other questions:
  • Help me please!!!!!!!!!!!
    11·1 answer
  • A student is 5 feet, 2 inches tall. What is her height in meters?
    8·1 answer
  • Simplify: 14/9k+13/9-2k+2/9+2/9k-6
    15·1 answer
  • Kathy has an orange tree in her front yard. The oranges are beginning to ripen. The first day, Kathy picks 2 oranges. The second
    13·2 answers
  • Josh's chicken soup recipe calls for 2 1\2 L of chicken stock. Josh makes 3 1\4 times the recipe for a family reunion. How much
    13·2 answers
  • Select true or false to tell whether the following disjunction is true or false. Use the truth table if needed. January is the f
    7·2 answers
  • Fina a polynomial function of degree 3 with real coefficients that has -1,2,-4 as zeros
    8·1 answer
  • I need help please, I attached a photo.<br><br>Graph y&gt;1-3x
    13·1 answer
  • Is 2(6-3x+x equal to 2(3x)+x
    8·1 answer
  • Which of the following are like terms?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!