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
mr Goodwill [35]
2 years ago
14

Help!! I spent hours trying to figure this out!! Answer was incorrect. And it has to be written in equation or fraction format.

No decimals.
Here’s my work:
Using a substitution
u = 4 * x^(-2)
du = -8 * x^(-3) * dx
(-1/8) * du = x^(-3) * dx
Now I have:
e^(4x^(-2)) * dx / x^3 =>
e^(u) * (-1/8) * du
Integrate
(-1/8) * e^(u) + C =>
(-1/8) * e^(4x^(-2)) + C
From 4 to 6
(-1/8) * e^(4 * 6^(-2)) + (1/8) * e^(4 * 4^(-2)) =>
(1/8) * (e^(4/16) - e^(4/36)) =>
(1/8) * (e^(1/4) - e^(1/9))

Mathematics
1 answer:
zysi [14]2 years ago
8 0

Answer:

its correct my friend gg i ttok half an hour to do it

Step-by-step explanation:

You might be interested in
Los extremos de un segmento son los puntos A (6, 3) y B (-3, -5), ¿Cuál es la razón “r” en el punto P (-1.2, 3.4) que divide al
Marta_Voda [28]

Answer:

this is suppose to be in Spanish not math

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Need help with this problem:
Nitella [24]

Answer:

<em>Henson: 3x + y = 163</em>

<em>Garcia: 2x + 3y = 174</em>

<em>adult ticket price: $45</em>

<em>child ticket price: $28</em>

Step-by-step explanation:

Henson Family:

3 adults + 1 child; total $163

3x + y = 163

Garcia Family:

2 adults + 3 children; total $174

2x + 3y = 174

Now we solve the system of equations.

Solve the first equation (Henson Family) for y.

y = 163 - 3x

Substitute 163 - 3x for y in the second equation (Garcia Family).

2x + 3<em>y</em> = 174

2x + 3(<em>163 - 3x</em>) = 174

2x + 489 - 9x = 174

-7x + 489 = 174

-7x = -315

x = 45

Now substitute 45 for x in the first original equation and solve for y.

3x + y = 163

3(45) + y = 163

135 + y = 163

y = 28

adult ticket price: $45

child ticket price: $28

8 0
3 years ago
What is the solution of the equation 9 = -2x + 15?<br> A -21<br> B -12<br> C 3<br> D 12
Nataly [62]
I think the answer is c: three
7 0
3 years ago
Read 2 more answers
Abe is buying wrapping paper.
fenix001 [56]

Answer:

So you need to compute all the rates to see which is the best deal.

$1.79/12.5ft^2=$0.1432 per ft^2

$5.29/40ft^2=$0.13225 per ft^2

$8.49/50ft^2=$0.1698 per ft^2

$6/60ft^2=$0.10 per ft^2

So the last option is the cheapes per square foot and thus is the best deal.  Ordered from least to greatest.

Sherbert, blue, red, and green

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
What is the value of x in the equation 0.7x – 1.4 = –3.5?<br> –7<br> –3<br> 3<br> 7
Lynna [10]
-3

1. Add -1.4 to each side.
2. Divide by 0.7 on each side.

Hope this helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • During a game of pool, Mia hit a ball and it followed the path from B to C and then to D. The angles formed by the path are cong
    14·2 answers
  • Milli plans to rent a room for her birthday party for $40. The catering charge is $12 per person but there is no charge for Mill
    11·1 answer
  • Is 21x9=9x21 identity
    15·2 answers
  • A triangle has a side length of 5 inches and a perimeter of 15 inches. A similar triangle has a corresponding side length of 25
    10·1 answer
  • You are an urban planner assessing the growth of a city. Ten years ago, the city's population was 250,823. Its current populatio
    6·1 answer
  • Which of the sets of ordered pairs represents a function? A = {(−4, 5), (1, −1), (2, −2), (2, 3)} B = {(2, 2), (3, −2), (9, 3),
    14·1 answer
  • What is the genotype of the offspring missing on the first row of the Punnett square?
    11·1 answer
  • Solve for s 2-2s=3/4s+13
    15·1 answer
  • lamar has completed 36 deliveries so far this week. he needs to make 45 deliveries for this week. what percentage of his deliver
    15·2 answers
  • Please Help. Will mark brainliest!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!