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
tiny-mole [99]
3 years ago
15

Find the sum. (13x2 + 5x) + 8x2 =

Mathematics
1 answer:
Julli [10]3 years ago
4 0
The sum is the total of the given values being added.
Given the expressions above, to add them, you just have to add the numbers with the same terms. 13x2 and 8x2 have the same terms which is x2, therefore, you can add both and the result is 21x^2 then just copy 5x so the sum would be 21x2 + 5x. Hope this answer helps.
You might be interested in
Find an
Mkey [24]
Counting backwards next is 1
8 0
3 years ago
What can you say about the graph of the function below? Check all that apply.
maw [93]
B y-intercept is (0,1)
5 0
3 years ago
2. The height of one square pyramid is 24 m. A similar pyramid has a height of 8 m. The volume of the larger pyramid is 648 m3.
Dmitrij [34]
Larger PyramidHeight 24 Volume 648

Pyramid Volume = (Area of the Base * Height) ÷ 3648 = Base Area * 24 / 3Base Area = 648 * 3 / 24Base Area = 648 / 8Base Area = 81Base Length = 9
a) The Scale Factor between the Small & Large PyramidLength - 3LATERAL Area - 9Volume - 27

Slant Height^2 = 4.5^2 + 24^2Slant Height^2 = <span> <span> 596.25 </span> </span> <span><span>Slant Height^2 = 24.4182308941 </span> </span>
b)
Large Pyramid Area = (½ * Perimeter of Base * Slant Height) + Base AreaLarge Pyramid Area = (.5 * 36 * <span>24.4182308941) + 81
</span>Large Pyramid Area = 439.5281560938 + 81
Large Pyramid TOTAL Area = <span> <span> 520.5281560938 </span> </span> <span>Large Pyramid LATERAL Area =<span> 439.5281560938 </span> </span>


**********************************************************************************c)
Smaller PyramidHeight 8Surface Area = 124
This pyramid has dimensions that are one third of the larger pyramid.Therefore, it has a base length of 3.Base Area = 9.
Its base perimeter would be 12.
Small Pyramid Volume = (Area of the Base * Height) ÷ 3Small Pyramid Volume = ( 9 * 8 ) / 3Small Pyramid Volume = 72 / 3
c) Small Pyramid Volume =24 cubic meters

d) Ratio of larger pyramid volume to smaller pyramid volume648 / 24 = 27The reason? Volume is a 3 dimensional quantity.  The Larger pyramid is 3 times larger in terms of the base measurement.9 meters vs 3 meters - a factor of 3When we compare volumes, we have to cube this factor.3^3 = 27

Source : http://www.1728.org/volpyrmd.htm

3 0
3 years ago
I can't figure this one out.
lyudmila [28]

Answer:

it increase and by 16.7

Step-by-step explanation:

6 0
3 years ago
Please helpppp I’m not sure how to solve
Nesterboy [21]

Answer:

If a is 1.. we substitute one in every a in g(a)

4 * 1 + 16

4+ 16 = 20

g(a)= 20

f(20)

-16 + 20 = 4

and 4/4 = 1

so f (g (a)) = a

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Given △ABC≅△EFG, which congruency statement is true?
    6·2 answers
  • What is 8x times 9x divided by 2xy???
    14·2 answers
  • Which parent relation would best represent the side of the vase outlined by the curve in the red?
    9·2 answers
  • Pat has a 10 cm length of string she's going to use to measure a small square table. The side length she measures is five strin
    10·2 answers
  • A vertical plate is submerged (or partially submerged) in water and has the indicated shape. Explain how to approximate the hydr
    12·1 answer
  • A bicycle wheel has a diameter of 62cm. The wheel makes 80 complete
    7·1 answer
  • Find the value of x so that the function has the given value.<br> f(x) = 6x – 9; f() = 51
    13·1 answer
  • 4x≤12= I don't understand​
    12·2 answers
  • Please STEP- BY- STEP
    12·1 answer
  • At the age of 6, Travis' father gave him his baseball card collection. Now, Travis collects baseball cards. He collects an avera
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!