All categories

2 years ago

Help with calculus please?

1 answer:

3 0

Wait let me know that the .12 means in the first question and i will fix the answer

int (x)(cosx) dx

u=x ----> take derivative du=dx
dv=cosx -----> take integral v=sinx

now use integration by parts

u v - int (v)du
x sinx - int (sinx) (1) dx=

x sinx - (-cos(x)) + c =

answer is = x sinx + cosx + c

You might be interested in

Joe began to increase the speed of his car at 2:00 P.M. Since that time,the speed of Joes car has been steadily increasing by 1

Olegator [25]

Answer:

7 mins

Step-by-step explanation:

Current speed of Joes Car = 65.5 mph

We have to find the time interval for which the car exceeded the speed limit of 55 mph.

While, we are given that the speed of the car was constantly increasing, hence the speed over all increased from the limit of 55 mph = 65.50-55.00 = 10.50 mph

We are also given that Joes car was increasing speed at a constant rate of 1.50 mph for every passing minute. Hence

1.50 mph is increased in 1 minute

1 mph will be increase in $\frac{1}{1.5}$ minutes

Hence

10.50 mph will be increased in $\frac{1}{1.5} \times 10.50$ minutes

$= \frac{10.5}{1.5}$

$=7$

Hence joes car was exceeding the limit of 55 mph for 7 minutes.

8 0

2 years ago

Neil mixes 1\10 liter of red paint with 3/10 of yellow how many liters of paint does neil have

frozen [14]

Answer:

4/10

Step-by-step explanation:

1/10 + 3/10 = 4/10

6 0

2 years ago

Read 2 more answers

5) Adrianna's quilt has this pattern: What is the pattern unit for the rug ? What is the next shape? answer:

CaHeK987 [17]

Answer:

square

Step-by-step explanation:

5 0

2 years ago

SOMEONE PLS HELPPP FASTTT<br>The tree height is equal to?

laiz [17]

Answer:

Step-by-step explanation:

Multiple 4*6

Get that answer then divide the answer u got for 4*6 and divide that with 60 which equals 24÷60

8 0

2 years ago

There are 234 pieces of candy in 9 bags of candy. If there are the same amount of pieces of candy in each bag, how many total pi

spin [16.1K]

Answer:

130 pieces of candy in 5 bags

Step-by-step explanation:

234/9 equals 26, that means there would be 26 pieces of candy in 9 bags, therefore 26x5 equals 130, and just to make sure, divide 130/26 to check if its wrong, but it should be 130. :) hope this helps you out!

8 0

2 years ago