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
zheka24 [161]
3 years ago
13

Round 66.42 to the nearest hundredth

Mathematics
1 answer:
Musya8 [376]3 years ago
3 0

Answer:

66.42

Step-by-step explanation:

66.42 is already rounded to the nearest hundredth.

You might be interested in
Assume that the pond contains 90 fish: 64 purple, 25 green, and 1 red. A contestant pays $0.55 to randomly catch one fish and re
Licemer1 [7]

Answer:

The carnival is losing (on average) $0.15 on each play

Step-by-step explanation:

To find out how much the carnival wins or looses in each play one subtract the expected value (EV) from each play from the amount charged by the carnival for each play ($0.55). If the expected value is higher than what the carnival charges, the carnival is losing money.

Expected is the sum of the payouts of each bet multiplied by its likelihood:

EV= \frac{64*0.40+25*1.15+1*9.00}{90}\\EV= 0.70

Since the expected value is higher than $0.55, the carnival is losing money, on average, on each play:

0.55-0.7 = -0.15

The carnival is losing (on average) $0.15 on each play

6 0
3 years ago
Use the given transformation x=4u, y=3v to evaluate the integral. ∬r4x2 da, where r is the region bounded by the ellipse x216 y2
exis [7]

The Jacobian for this transformation is

J = \begin{bmatrix} x_u & x_v \\ y_u & y_v \end{bmatrix} = \begin{bmatrix} 4 & 0 \\ 0 & 3 \end{bmatrix}

with determinant |J| = 12, hence the area element becomes

dA = dx\,dy = 12 \, du\,dv

Then the integral becomes

\displaystyle \iint_{R'} 4x^2 \, dA = 768 \iint_R u^2 \, du \, dv

where R' is the unit circle,

\dfrac{x^2}{16} + \dfrac{y^2}9 = \dfrac{(4u^2)}{16} + \dfrac{(3v)^2}9 = u^2 + v^2 = 1

so that

\displaystyle 768 \iint_R u^2 \, du \, dv = 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2 \, du \, dv

Now you could evaluate the integral as-is, but it's really much easier to do if we convert to polar coordinates.

\begin{cases} u = r\cos(\theta) \\ v = r\sin(\theta) \\ u^2+v^2 = r^2\\ du\,dv = r\,dr\,d\theta\end{cases}

Then

\displaystyle 768 \int_{-1}^1 \int_{-\sqrt{1-v^2}}^{\sqrt{1-v^2}} u^2\,du\,dv = 768 \int_0^{2\pi} \int_0^1 (r\cos(\theta))^2 r\,dr\,d\theta \\\\ ~~~~~~~~~~~~ = 768 \left(\int_0^{2\pi} \cos^2(\theta)\,d\theta\right) \left(\int_0^1 r^3\,dr\right) = \boxed{192\pi}

3 0
2 years ago
PLEASE ANSWER ASAP! *PICTURE ATTACHED*
spin [16.1K]

Answer:

1) vertical line test

2) y=x

3)x

4)domain

7 0
3 years ago
2= n/3 what is n<br> pls helpp
Verdich [7]

Answer:

6

Step-by-step explanation:6/3= 2

3 0
2 years ago
A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken
NeX [460]

Answer:

wowrjdndndnfnf dmdi fufu diff fjf fjf fifth f ouch r f ik r fir fir rir tir t

3 0
2 years ago
Other questions:
  • If a truck traveled 75.648 miles per year how many miles did it travel monthly
    15·1 answer
  • Find the midpoint of the segment with the following endpoints.<br> (5,9) and (0,3)
    9·2 answers
  • Simplify the expression -1/4(8-3x)-1/4x
    7·2 answers
  • I need help somebody please?
    5·2 answers
  • suppose the atmosphere air pressure at sea level is about 96 kilopascals. for every 1000-meter pressure decreases 11.6 percent.
    7·1 answer
  • If the total charge is $35.80 how can I work backwards to find the miles driven?
    7·1 answer
  • Christine Wong has asked Dave and Mike to help her move into a new apartment on Sunday morning. She has asked them both, in case
    13·1 answer
  • Times greater than the
    8·1 answer
  • What is 6x+12+18=180 what is x
    15·2 answers
  • I need help on this problem please!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!