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
aksik [14]
2 years ago
14

Somebody please help me with this.

Mathematics
1 answer:
LenKa [72]2 years ago
8 0

Answer:

D.

Step-by-step explanation:

You might be interested in
Calculate the power in kilowats required to lift a 500 kg mass 12 meters in one second
Anon25 [30]
I think that the answer is 58,800 watts
5 0
3 years ago
Hey please answer the 3 questions attached, thank you very much!
kobusy [5.1K]

Answer:

a) negative correlation b) Diagram C (I think) c) Diagram b

Step-by-step explanation:

a) Negative= line going dow

Positive= line going up

no correlation= no line

b) the dots are to close to each other which mean it has a string correlation.

c)Its no correlation, so line should not be drawn

7 0
3 years ago
The bar graph shows the z-score results of four employees for two different work weeks.
MrRissso [65]
Hello!

You look at the graph and see the the blue bars are week one

You look and see who has the lowest

The answer is Oberto

Hope this helps!
6 0
3 years ago
Read 2 more answers
When the velocity v of an object is very​ large, the magnitude of the force due to air resistance is proportional to v squared w
Sati [7]

Answer:

Step-by-step explanation:

The model fo the shell is given by the following equation of equilibrium:

\Sigma F = -b\cdot v^{2} - m\cdot g = m\cdot \frac{dv}{dt}

This first-order differential equation has separable variables, which are cleared herein:

\int\limits^t_{0\,s} \, dt = -\frac{m}{b} \int\limits^{0\,\frac{m}{s} }_{600\,\frac{m}{s} } {\frac{1}{ v^{2}+\frac{m}{b}\cdot g } } \, dv

The solution of this integral is:

t = -\frac{m}{2b}\cdot \left[\tan^{-1} \left(\frac{v}{\sqrt{\frac{m\cdot g}{b} } }\right) - \tan^{-1} \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }\right)\right]

\tan^{-1} \left(\frac{v}{\sqrt{\frac{m\cdot g}{b} } }  \right)=-\frac{2\cdot b\cdot t}{m} + \tan^{-1}\left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)

\frac{v}{\sqrt{\frac{m\cdot g}{b} } }=\tan \left[-\frac{2\cdot b\cdot t}{m} + \tan^{-1}\left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)\right]

v = \sqrt{\frac{m\cdot g}{b} } \left [\frac{\tan \left(-\frac{2\cdot b \cdot t}{m}  \right)+ \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)}{1 - \left(\frac{600}{\sqrt{\frac{m\cdot g}{b} } }  \right)\cdot \tan \left(-\frac{2\cdot b \cdot t}{m}  \right) }\right]

4 0
3 years ago
What percent of 99 is 90?
Yuri [45]

Answer:

91%

Step-by-step explanation:

We can use the formula \frac{is}{of}=\frac{percent}{100}

  • "is" is 90
  • "of" is 99
  • "percent" is what we are solving for so we will denote it as x

Substituting in our values we get \frac{90}{99}=\frac{x}{100}

  • We will need to cross multiply here to get (90)(100) = (x%)(99)
  • This simplifies to 9000 = 99x%
  • Dividing by 99 on both sides we get 90.9% → x = 91%
4 0
2 years ago
Other questions:
  • Could someone please help?
    12·2 answers
  • Write an equation for the transformation of y = x
    13·1 answer
  • The graph of an exponential function passes through (2,−32) and (3,−64). Find the exponential function that describes the graph.
    8·1 answer
  • I don't know how to do it
    6·1 answer
  • . A line that is tangent to a circle will always intersect the radius at what kind of angle?
    7·1 answer
  • For which of the following situations would the order that items are chosen not matter? Finding the number of ways to choose a c
    6·2 answers
  • If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
    7·1 answer
  • Simplify the expression: (15-8)^9<br> —————<br> [ (5+2)^2]^3
    14·1 answer
  • Drag the labels to the correct locations. Each label can be used more than once, but not all labels will be used.
    11·1 answer
  • Help me plsssssssssss agian
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!