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
Vlad [161]
3 years ago
5

Fins the value of (15)^3 + (-9)^3 + (-6)^3 , without actually cubing the numbers​

Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

a³ + b³ + c³ + 3abc = ( a + b + c)(a² + b² + c² + ab + bc + ca)

if a + b + c = 0. then a³ + b³ + c³ = 3abc

here a + b + c = 15 + (-9) + (-6)

a + b + c = 15 - 15

a + b + c = 0

so a³ + b³ + c³ = 3abc

15³ + (-9)³ + (-6)³ = 3(15)(-9)(-6)

= 2430

so the answer is 2430

You might be interested in
SOMEONE HELP ASAP PLEASE ):
Kisachek [45]
5 becaue its goodflooru
4 0
4 years ago
What is 14/52 as a decimal
Kisachek [45]

Answer:

0.2692307692

Step-by-step explanation:

14/52 = 0.2692307692

7 0
3 years ago
Seqouya has 1/2 of a liter of apple juice which fills 1/3 of her glass. How many glasses will 1 liter of apple juice fill
zavuch27 [327]

Answer:

2/3 of her glasses

Step-by-step explanation:

If 1/2 liter apple juice fills 1/3 of her glasses, then twice that volume will fill twice as many glasses:  2/3 of her glasses.

4 0
3 years ago
Earth has been charted with vertical and horizontal lines so that points can be named with coordinates. The horizontal lines are
inna [77]
<span>a. The radius of earth is about 6400 kilometers. Find the circumference of a great circle.

Circumference = 2π(radius) = 2π(6400 km) = 40.212,39 km

b. Write an equation for the circumference of any latitude circle with angle theta

As stated, </span><span><span>the length of any parallel of latitude (this is the circumference of corresponding circle) is equal to the circumference of a great circle of Earth times the cosine of the latitude angle</span>:

=> Circumference = 2π*radius* cos(Θ) = 2 π*6400km*cos(Θ) = 40,212.39 cos(Θ)

Answer: circumference = 40,212.39 cos(Θ) km

c. Which latitude circle has a circumference of about 3593 kilometers?

Make </span><span><span>40,212.39 cos(Θ)</span> km = 3593 km

=> cos(Θ) = 3593 / 40,212.39 = 0.08935 => Θ = arccos(0.08935) = 84.5° = 1.48 rad

Answer: 1.48

d. What is the circumference of the Equator? </span>

For the Equator Θ = 0°

=> circumference = 40,213.49cos(0°) km = 40,212.49 km

Answer: 40,212.49 km

7 0
4 years ago
Find the intercept of the line -2x+5y=7
jeka57 [31]
Y intercept = 7/-2 or -3.5
5 0
3 years ago
Other questions:
  • Hey pls help 15 brain coins ;-;​
    10·1 answer
  • katlin is selling t shirts. she sold 2 for $13.00 and 4 for $25.00 what will katlin charge for 7 t shirts if she keeps selling t
    9·1 answer
  • S KM ∥ JN? Why or why not?
    13·2 answers
  • Use a translator or whatever, just don't know how to do it. Will give most helpful answer brainliest, with an explanation and an
    9·1 answer
  • Mike and nine of his teammates each ate a half of a pizza, how many whole pizzas did they consume all together? A) 5 B) 2 5 C) 5
    12·1 answer
  • Courtney Celeste is starting Celeste Consulting Services, a small service business. Celeste Consulting Services uses the account
    8·1 answer
  • Mean birthweight is studied because low birthweight is an indicator of infant mortality. A study of babies in Norway published i
    7·1 answer
  • Find the equation of the line that passes through the points (6,14) and is parallel to y=-4/3x-1
    14·1 answer
  • 34 + 4 ⋅ 5 = ____. (Input whole numbers only.)
    13·2 answers
  • You're taking a scenic road trip down CA-Highway 1 from San Jose, California, to Los
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!