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
bekas [8.4K]
3 years ago
13

Please help me idk this

Mathematics
2 answers:
Softa [21]3 years ago
8 0
43.010 is your answer
Zepler [3.9K]3 years ago
5 0

Answer:

43.1

Step-by-step explanation:

tenth place is the first digit to the right of the decimal. when asked to round a number you look at the numbers beside the tenth place.

you see  42.093

any number 5 and up gets round to the next number

You might be interested in
Classify the statement as either true or false.<br> lim<br> 6 = 6
asambeis [7]

Answer:

false

Step-by-step explanation:

if is 6= you need to time by it self like: 6×6=is ur answer

4 0
3 years ago
Use the Fundamental Theorem for Line Integrals to find Z C y cos(xy)dx + (x cos(xy) − zeyz)dy − yeyzdz, where C is the curve giv
Harrizon [31]

Answer:

The Line integral is π/2.

Step-by-step explanation:

We have to find a funtion f such that its gradient is (ycos(xy), x(cos(xy)-ze^(yz), -ye^(yz)). In other words:

f_x = ycos(xy)

f_y = xcos(xy) - ze^{yz}

f_z = -ye^{yz}

we can find the value of f using integration over each separate, variable. For example, if we integrate ycos(x,y) over the x variable (assuming y and z as constants), we should obtain any function like f plus a function h(y,z). We will use the substitution method. We call u(x) = xy. The derivate of u (in respect to x) is y, hence

\int{ycos(xy)} \, dx = \int cos(u) \, du = sen(u) + C = sen(xy) + C(y,z)  

(Remember that c is treated like a constant just for the x-variable).

This means that f(x,y,z) = sen(x,y)+C(y,z). The derivate of f respect to the y-variable is xcos(xy) + d/dy (C(y,z)) = xcos(x,y) - ye^{yz}. Then, the derivate of C respect to y is -ze^{yz}. To obtain C, we can integrate that expression over the y-variable using again the substitution method, this time calling u(y) = yz, and du = zdy.

\int {-ye^{yz}} \, dy = \int {-e^{u} \, dy} = -e^u +K = -e^{yz} + K(z)

Where, again, the constant of integration depends on Z.

As a result,

f(x,y,z) = cos(xy) - e^{yz} + K(z)

if we derivate f over z, we obtain

f_z(x,y,z) = -ye^{yz} + d/dz K(z)

That should be equal to -ye^(yz), hence the derivate of K(z) is 0 and, as a consecuence, K can be any constant. We can take K = 0. We obtain, therefore, that f(x,y,z) = cos(xy) - e^(yz)

The endpoints of the curve are r(0) = (0,0,1) and r(1) = (1,π/2,0). FOr the Fundamental Theorem for Line integrals, the integral of the gradient of f over C is f(c(1)) - f(c(0)) = f((0,0,1)) - f((1,π/2,0)) = (cos(0)-0e^(0))-(cos(π/2)-π/2e⁰) = 0-(-π/2) = π/2.

3 0
3 years ago
Please please please help asap
antoniya [11.8K]

Answer:

1,3,5

Step-by-step explanation:

81 is a perfect square so it can be written as an integer

11.8 is rational because it can be written as a fraction (107/9)

sqrt(6) isn't a perfect square so it is irrational

3/7 is a fraction so it is rational

8.57 is a terminating decimal so it is rational

7 0
2 years ago
Dhhdhdhdhhddhdhdhdhdhdhi
wel

Answer:

dddasssssssssssssssssssssssssssssssssssssss

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
carter deposited $70 in a savings account earning 10% interest ,compounded anually. Write the equation
solniwko [45]
Equation for what?  Amount after so and so number of years?

If so, then A = $70(1+0.10)^t, where t is the # of years.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Dan bought a new house with a backyard whose dimensions are 21.8 by 12 feet. The backyard has a triangular garden with an area o
    10·1 answer
  • at the flea market, erin buys a phone that is 22% off and gloves that are reduced to $19.97. erin spends a total of $48.52. let
    11·2 answers
  • . Find the probability that the coin turns up heads for the first time on the tenth, eleventh, or twelfth toss.
    12·1 answer
  • The sum of a number and two is equal to negative seven. Translate this sentence to an equation and then find the number.
    11·2 answers
  • Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return tr
    13·2 answers
  • What is 998 divided by 9?
    7·2 answers
  • You might need:
    12·1 answer
  • If 8x-7y=-8 is a true equation, what would be the value of -8+8-7y
    11·1 answer
  • marcus and anthony are selling camping equipment to try to earn money to buy three new gaming systems. Last month they sold back
    15·1 answer
  • In a right triangle, the acute angles have the relationship sin (2x+4)=cos(46).
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!