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
valkas [14]
3 years ago
10

5 ( 3 squared x) + 9 ( 3 squared x)

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

42x^2

Step-by-step explanation:

5(3x^{2} )+9(3x^2)\\\\=(5+9)(3x^2)\\\\=14(3x^2)\\\\=42x^2

You might be interested in
Find the area of the region between two concentric circular paths. If the radii of the circular paths are 210 m. and 490 m. resp
taurus [48]

Given :

  • The radii of the circular paths are 210 m. and 490 m.

To Find :

  • The area of the region between two concentric circular paths.

Solution :

Area of the outer circle :

\: \qquad  \dashrightarrow \sf{{ \pi \: \times  {(490)}^{2}  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ \dfrac{22}{7} \times   \:490 \times 490 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ \dfrac{22}{ \cancel{7}} \times   \cancel{490} \times 490 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ {22} \times   70 \times 490 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \bf{{ \ 754600 \:  {m}^{2}}}

⠀

Area of the inner circle :

\: \qquad  \dashrightarrow \sf{{ \pi \: \times  {(210)}^{2}  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ \dfrac{22}{7} \times   \:210 \times 210 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ \dfrac{22}{ \cancel{7}} \times   \cancel{210} \times 210 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \sf{{ \ {22} \times   30 \times 210 \:  {m}^{2}}}

\: \qquad  \dashrightarrow \bf{{ \ 138600 \:  {m}^{2}}}

⠀

Therefore,

Area of the region inside the circular paths :

\: \qquad  \dashrightarrow \sf{{ \ (754600 - 138600  )  \: {m}^{2}}}

\: \qquad  \dashrightarrow \bf{{ \ 616000 \:  {m}^{2}}}

6 0
2 years ago
Write an equation of a line that is perpendicular to 4x +2y = 8
Mashcka [7]

Answer:

Step-by-step explanation:

2y = -4x + 8

y = -2x + 4

perp. 1/2

y - 2 = 1/2(x - 6)

y - 2 = 1/2x - 3

y = 1/2x - 1

7 0
3 years ago
Plsssssss answerrrrr
Nadusha1986 [10]

the answer I knew but I forgot at ate

4 0
2 years ago
Read 2 more answers
If sin(x)=cos(y). which of these are possible answers​
AlexFokin [52]

Answer:

do you have a calculator

6 0
2 years ago
8) Ryan created a metal containing 68%
JulijaS [17]

Answer:

32%

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Help please ! its geometry
    7·2 answers
  • The width of a rectangle is 3 feet shorter than its length. The perimeter is 306 feet. Let x equal the length of the rectangle.
    15·1 answer
  • A grain silo has a cylindrical shape. Its radius is 7ft, and its height is 33ft. What is the volume of the silo?
    6·1 answer
  • John found money in his pocket. He went to the convenience store and spent 1/3 of his money on strawberry milk, 2/4 of his money
    10·1 answer
  • A rectangular room is 27 feet wide by 17 feet long whats the parameter?​
    7·1 answer
  • HELP ME PLEASE I NEED TO PASS THIS CLASS
    15·2 answers
  • Which expression gives the distance between the points (5,1) and (9,-6)?
    8·1 answer
  • SOMEONE PLEASE HELP ANSWER CORRECTLY !!!!! WILL MARK BRIANLIEST !!! HELPPPPPP MEEEEEEE !!!!!
    13·2 answers
  • Need help asap pleas and thank you .
    9·1 answer
  • Please answer!!!! And show work if possible!!!!! ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!