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
olya-2409 [2.1K]
3 years ago
5

Simplify x + 6.2 + 8.5.6.2x + 8.5x + 14.70 14.7×​

Mathematics
1 answer:
Alenkinab [10]3 years ago
3 0

Answer:

x + 14.7

Step-by-step explanation:

Simply combine like terms. Constants go with each other and <em>x</em> terms go with each other.

6.2 + 8.5 = 14.7

x = x

x + 14.7

You might be interested in
Consider the line integral Z C (sin x dx + cos y dy), where C consists of the top part of the circle x 2 + y 2 = 1 from (1, 0) t
pashok25 [27]

Direct computation:

Parameterize the top part of the circle x^2+y^2=1 by

\vec r(t)=(x(t),y(t))=(\cos t,\sin t)

with 0\le t\le\pi, and the line segment by

\vec s(t)=(1-t)(-1,0)+t(2,-\pi)=(3t-1,-\pi t)

with 0\le t\le1. Then

\displaystyle\int_C(\sin x\,\mathrm dx+\cos y\,\mathrm dy)

=\displaystyle\int_0^\pi(-\sin t\sin(\cos t)+\cos t\cos(\sin t)\,\mathrm dt+\int_0^1(3\sin(3t-1)-\pi\cos(-\pi t))\,\mathrm dt

=0+(\cos1-\cos2)=\boxed{\cos1-\cos2}

Using the fundamental theorem of calculus:

The integral can be written as

\displaystyle\int_C(\sin x\,\mathrm dx+\cos y\,\mathrm dy)=\int_C\underbrace{(\sin x,\cos y)}_{\vec F}\cdot\underbrace{(\mathrm dx,\mathrm dy)}_{\vec r}

If there happens to be a scalar function f such that \vec F=\nabla f, then \vec F is conservative and the integral is path-independent, so we only need to worry about the value of f at the path's endpoints.

This requires

\dfrac{\partial f}{\partial x}=\sin x\implies f(x,y)=-\cos x+g(y)

\dfrac{\partial f}{\partial y}=\cos y=\dfrac{\mathrm dg}{\mathrm dy}\implies g(y)=\sin y+C

So we have

f(x,y)=-\cos x+\sin y+C

which means \vec F is indeed conservative. By the fundamental theorem, we have

\displaystyle\int_C(\sin x\,\mathrm dx+\cos y\,\mathrm dy)=f(2,-\pi)-f(1,0)=-\cos2-(-\cos1)=\boxed{\cos1-\cos2}

3 0
3 years ago
How do i write 14 ten thousands and 12 thousands in standard<br> form
Burka [1]
In standard form:
answer- 14,000 and 12,000

Example
←LEFT 12,000
                 ↑
   comma(THOUSANDS PLACE)

ten thosands is the second number after the comma(thousands) to the left
8 0
3 years ago
Sam is a school leader. She wants to decide whether makeup should be allowed in school or not. She
anastassius [24]

Answer:

Following are the sample list can be attached as follows:

Step-by-step explanation:

In the given question some information is missing that is attachment of list which can be attached as follows:

please find the attachment list:

by evaluating the list it will give the answer that the both the samples most want to wear mascara the least want to wear lipstick.

8 0
3 years ago
This is correct? I need help please :(
Leto [7]

Answer:

well, we only no that

2l + 2w is 80

(lengths and widths on all 4 sides

and that w * l is A

so the function should be w times what's left for l, but also expressed by something with w

2l + 2w = 80 | -2w

2l = 80 -2w | devide by 2

l = 80 - w

now we can substitute l in

A = w * l

so that we only need w's

A(w) = w * (80-w)

for any w it will give us the area, makes only sense for 0<w<80

8 0
2 years ago
Read 2 more answers
What is half of 7 5/8 and 5 3/8
meriva

Answer:

6.5

Step-by-step explanation:

7 5/8 + 5 3/8= 13

13/2=6.5

5 0
2 years ago
Other questions:
  • Carmen rolls a cube with sides labeled A, B, C, D, E, and F.
    6·2 answers
  • 12/11-(-2/3)=?????????????????????????????????????????
    8·2 answers
  • Does someone know this answer. My teacher has a hard time solving it .
    13·2 answers
  • Can someone help me plz
    7·2 answers
  • ✨Please help it would mean a lot!:)✨
    5·2 answers
  • At a real estate agency, an agent sold a house for $311,000. The commission rate is 4.6% for the real
    9·1 answer
  • Which of these systems of equations has one solution?
    9·2 answers
  • Need help, really not good with anything in math
    5·1 answer
  • Doug has a bag full of crayons. There are 6 red crayons, 7 blue ones, and 4 green crayons. Doug wants to color a blue sky. What
    5·1 answer
  • 15) A, B, C, D, E and F are towns situated as follows. * A is 30 km east of D * C is 20 km east of E * F is 10 km west of B * D
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!