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
fomenos
3 years ago
9

Find the sum of 5x3 3x²+5 and -2x²+6x²5

Mathematics
1 answer:
Alinara [238K]3 years ago
6 0

Answer:

5×3=15

15+5=20

3x^2-2x^2=x^2

6x^2×5=30x^2

20+x^2+30x^2=20+31x^2

You might be interested in
Turkey tastes like napkins
vesna_86 [32]
So you ate napkins before? And some turkey is dry lol
4 0
3 years ago
What is the GCF of 16s3t, 40s5, and 68t2? 4 4s3t 8 8s3t
Gemiola [76]
4 is the only factor common among all terms
3 0
3 years ago
Read 2 more answers
Marris decides to bake his parents a cookie in the shape of a regular dodecagon (12‑gon) for their 12-day anniversary.
allochka39001 [22]

Answer:

The answer to each question is:

  • A.) 403.2 cm^{2}
  • B.) 100. 8 cm^{2}

Step-by-step explanation:

A.) To obtain the area of the dodecagon, you can use the next formula:

  • Area of a dodecagon = 6 * apothem * edge

In the exercise, we have the edge (6 cm), but, to find the apothem of a dodecagon, that is the distance between the center of the polygon, and the middle point of each side, you can use the next formula:

  • Apothem = Edge * \frac{2+\sqrt{3}}{2}

If we replace the value of the edge, we obtain:

  • Apothem = 6 cm * \frac{2+\sqrt{3}}{2}
  • Apothem = 11.2 cm (approximately).

With this data, we can find the area:

  • Area of a dodecagon = 6 * apothem * edge
  • Area of a dodecagon = 6 * 11.2 cm * 6 cm
  • Area of a dodecagon = 403.2 cm^{2}

Then,<u> the area of the dodecagon is 403.2 </u>cm^{2}<u> approximately</u>.

B.) As the area obtained is for 12 pieces, when the parents ate 9 pieces, just left 3 pieces, with these values you can make a rule of three.

If:

  • 12 pieces = 403.2 cm^{2}
  • 3 pieces = X

Then:

  • X = (3 * 403.2 cm^{2}) / 12
  • X = 1209.6 cm^{2} / 12
  • X = 100. 8 cm^{2}

In this form, <u>when the cookie has 3 pieces, its area is 100. 8 </u>cm^{2}<u> approximately</u>.

5 0
3 years ago
Zachary's soccer camp started at 11:35 A.M. They spent 55 minutes practicing defense and 2 hours and 25 minutes shooting. What t
UNO [17]

camp ended at 2:55pm


4 0
3 years ago
Read 2 more answers
In this picture what is the value of x
zlopas [31]
Add the 75 and 79 which gives u 154
then subtract it by 180 and should give you 26 as your final answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • Help umm how do i do this im dumb idk how to do it :(
    5·1 answer
  • How to write 1 2/5 as a percent
    7·2 answers
  • Jacob earned 300 on an amount deposited into his bank account for 3 years at a 2% annual simple interest rate how much did Joe d
    14·1 answer
  • Grant spent 2.50,$4.00,$4.25, and $3.25?On breakfast one week.The next week he spent $6 more in total for the 4 breakfasts than
    11·1 answer
  • Please help with one and two i have no clue and i’m really stressed, i’ll mark highest :(
    15·1 answer
  • Find the Area of the figure.<br> 4x - 3<br> 2x + 1
    9·1 answer
  • Solve for x for both of these plssss i need help
    9·1 answer
  • Find the value of x and the value of y
    8·1 answer
  • -7 = (m-9/4 please show your work!
    11·1 answer
  • What is the largest number that can be used to divide 36 other than itself​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!