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
photoshop1234 [79]
2 years ago
14

Fourteen students got a B on the last quiz. This represents 2/5 of the class. How many students are in the class?

Mathematics
2 answers:
Elena-2011 [213]2 years ago
5 0
3/5 of the class is left
viktelen [127]2 years ago
3 0

Answer:

35

Step-by-step explanation:

2 x 7 = 14

5 x 7 = 35

You might be interested in
A probability that is computed with the knowledge of additional information is
lianna [129]

Answer: called conditional probability

6 0
3 years ago
Read 2 more answers
Need help fast Yesterday's afternoon temperature was 21°F. It plunged overnight to -3°F. How many degrees did the temperature dr
Nezavi [6.7K]

The Answer to all the questions are D C D D B

6 0
3 years ago
Need help!!!!!!!!!!!!!
xeze [42]

Answer:

m = $14/day

w = $6/day

Step-by-step explanation:

See attached image.

7 0
2 years ago
Which expression is equivalent to the following complex fraction?
jeka57 [31]
\dfrac{\frac{1}{x}-\frac{1}{y}}{\frac{1}{x}+\frac{1}{y}}=\dfrac{\frac{y}{xy}-\frac{x}{xy}}{\frac{y}{xy}+\frac{x}{xy}}=\dfrac{\frac{y-x}{xy}}{\frac{y+x}{xy}}=\dfrac{(y-x)xy}{(y+x)xy}=\dfrac{y-x}{y+x}

Answer D.
6 0
3 years ago
The polar coordinates of a point are 3π 4 and 7.00 m. What are its Cartesian coordinates (in m)? (x, y) = 6.06,−3.5 m
Keith_Richards [23]

Answer:

a) \left(x,y\right)=\left(4.95,-4.95\right)

b) r\angle\theta = 7\angle0.5236\,\text{radians}

Step-by-step explanation:

Polar coordinates are represented as: r\angle\theta, where 'r' is the length (or magnitude) of the line, and '\theta' is the angle measured from the positive x-axis.

in our case:

7\angle\dfrac{3\pi}{4}

to covert the polar to cartesian:

x = r\cos{\theta}

y = r\sin{\theta}

we can plug in our values:

x = 7\cos{\dfrac{3\pi}{4}} = -7\dfrac{\sqrt{2}}{2}

y = 7\sin{\dfrac{3\pi}{4}} = 7\dfrac{\sqrt{2}}{2}

the Cartesian coordinates are:

\left(x,y\right)=\left(-7\dfrac{\sqrt{2}}{2},7\dfrac{\sqrt{2}}{2}\right)

\left(x,y\right)=\left(4.95,-4.95\right)

(b) to convert (x,y) = (6.06,-3.5)

we'll use the pythagoras theorem to find 'r'

r^2 = x^2+y^2

r^2 = (6.06)^2+(-3.5)^2

r = \sqrt{48.97} \approx 7

the angle can be found by:

\tan{\theta} = \dfrac{y}{x}

\tan{\theta} = \dfrac{3.5}{6.06}

\theta = \arctan{left(\dfrac{3.5}{6.06}\right)}

\theta = 0.5236 \text{radians}

to convert radians to degrees:

\theta = 0.5236 \times \dfrac{180}{\pi} \approx 30^\circ

writing in polar coordinates:

r\angle\theta = 7\angle30^\circ\,\,\text{OR}\,\,7\angle0.5236\,\text{radians}

5 0
3 years ago
Other questions:
  • URGENT Solve 2(4 x + 3) < 5 x + 21. { x | x < 9} { x | x > -5} { x | x > -9} { x | x < 5}
    8·1 answer
  • Let #N mean the number of days in year N. What is the value of #1988 + #1989 + #1990 + #1991?
    11·1 answer
  • Find the x-intercept and y-intercept of each line. Use the intercepts to graph the equation. Equation: 3x + 5y = 15
    15·1 answer
  • Suppose you redraw the map at the left using a scale of 0.5 centimeter : 1 centimeter. Does your drawing enlarge or reduce the s
    15·1 answer
  • The time between seeing the lightning and hearing the thunder is s seconds. The distance d you are from lightning is approximate
    13·2 answers
  • Someone can help me with this please​
    8·1 answer
  • 3/4, 1/3, 5/8<br><br> In order from largest to smallest
    7·1 answer
  • At a certain time of day, the sun causes objects to cast shadows at a 65° angle with the ground. At this time of day, a flagpole
    9·1 answer
  • Red is a very popular car color. A production company manufactures cars and parks them in a lot behind the plant. There are 100
    7·1 answer
  • Someone pleaseee helppppp
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!