cho a,b,c là các số nguyên. Chứng minh rằng nếu a mũ 3 + b mũ 3 + c mũ 3 chia hết cho 9 thì một trong các số a , b ,c chia hết cho 3
Answer:
let a, b, c be integers. Prove that if a to the power 3 + b to the power 3 + c to the power 3 is divisible by 9, then one of the numbers a , b , c is divisible by 3
Step-by-step explanation:
Please help me I need to turn this in very soon
Answer:
1331/3375
Step-by-step explanation:
(11/15) ^3 = (11*11*11)/(15*15*15) =1331/3375
In which quadrant does the point (13 , -6) lie?
A.
Quadrant III
B.
Quadrant I
C.
Quadrant IV
D.
Quadrant II
Answer:
C
Step-by-step explanation:
i hope you'll find these useful......
Answer:
C, quadrant IV
Step-by-step explanation:
The X (13) is positive meaning the point is on the right side of the graph, and Y (-6) is negative so it's below the x axis
What is the Nth term rule of the Quadratic sequence -5 -4 -1 4 11 20 31
Step-by-step explanation:
an = A×n² + B×n + C
a1 = -5 = A×1² + B×1 + C = A + B + C
a2 = -4 = A×2² + B×2 + C = 4A + 2B + C
a3 = -1 = A×3² + B×3 + C = 9A + 3B + C
a2 - a1 = -4 - -5 = 1 = 4A+2B+C-A-B-C = 3A + B
3A = 1 - B
A = (1 - B)/3
a3 - a2 = -1 - -4 = 3 = 9A+3B+C-4A-2B-C = 5A + B
3 = 5A + B = 5(1 - B)/3 + B
9 = 5(1 - B) + 3B = 5 - 5B + 3B = 5 - 2B
4 = -2B
B = -4/2 = -2
A = (1 - -2)/3 = (1 + 2)/3 = 3 / 3 = 1
-5 = A+B+C = 1 - 2 + C = -1 + C
-4 = C
so,
an = n² - 2n - 4
You weigh a group of eight kittens for 6 days and get the following data (in lb.):
1.6, 1.4, 1.1, 1.8, 1.3, 1.8, 1.2, 1.4
Select the correct average weight. Round your answer to one decimal place.
1.8 lb.
1.8 lb.
1.1 lb.
1.1 lb.
1.5 lb.
1.5 lb.
1.4 lb.
Answer:
1.5
Step-by-step explanation:
90 people apply for job, 10 have no sales or publishing experience, 65 have sales, 58 have publishing, how many have both?
No sales | Sales
No Publishing | 10 __ __
Publishing | __ x 58
__ 65 90
Fill in spots
No sales | Sales
No Publishing | 10 22 32
Publishing | 15 43 58
25 65 90
43 applicants have both sales and publishing experience
Pre college need help
Answer:
No
Step-by-step explanation:
Substituting into both equations proves that the second equation does not work for the ordered pair provided
Answer:
No
Step-by-step explanation:
2+(-5)=3
4(2)+3(-5)=-7
Avery read 1.75 pages in to of an hour. At what rate, in pages per hour, did she read?
On the double number line below, fill in the given values, then use multiplication t
find the missing value. Enter your answers as fractions, whole numbers, or decimals.
pages
o
O
hours
Enter your final answer as a whole number or decimal.
Answer:
10.5? sorry if it doesnt work
Step-by-step explanation:
A parabola can be drawn given a focus of (1,-3) and a directrix of x=9, what can be said about the parabola?
Check the picture below.
well, we can say that since its directrix is a vertical line, the parabola opens horizontally, the focus point is at the left of the directrix thus it opens leftwards, ithas a vertex at (5,-3), recall that the vertex is half-way between the focus point and the directrix.
Which of the diagrams shows an exponential graph?
Answer:
Diagram "C"
Step-by-step explanation:
The curve eventually shows that it is an exponentially graph
Prepare a mixture of 100g of 8% cream into 200g of 3% cream. What is the resulting concentration?
Answer:
14=300X
X=14/300
X=.04667 OR 4.67%
Step-by-step explanation:
100*.08+200*.03=(100+200)X
8+6=300X
14=300X
X=14/300
X=.04667 OR 4.67% SOLUTION ANS.
If this process is wrong, let me know
mai owes the bank 60. she gets 85 for her birthday and deposits it into her account how much dose she now have in the bank
Answer:
if she pays the bank back it would be 25 but if she just deposited 85 then she has 85 in the bank
Step-by-step explanation:
graph the solution of the inequality 2.25k≤−9
Answer:
Wouldn’t negative 9 be the inequality because its less than 2.25
Step-by-step explanation:
Hey budddy if i got this wrong im soooooo, sorry
Ms. McCullough bought a bunch of bananas. If she ate 2/8
the bananas and Mrs. Byrd ate 1/4, what fraction of bananas
remains?
Answer:
1/2
Step-by-step explanation:
that's the answer because 2/8-1/4 is 1/2
simplify 1/3 : 2.5 : 3 3/4
Answer:
i dont know
Step-by-step explanation:
Answer:
4 : 30 : 45
Step-by-step explanation:
The least common denominator of the fractions 1/3, 1/2, and 1/4 is 12. Multiplying the ratio by 12 gives ...
(1/3) : (2.5) : (3 3/4) = (12)(1/3) : (12)(2.5) : (12)(3 3/4)
= 4 : 30 : 45
*WILL GIVE BRAINLIEST FOR BEST ANSWER*
Subtract. Write your answer in scientific notation.
(5.6×106)–(1.1×106)
Answer:
447
Step-by-step explanation:
please help me calculation completing square?
x²+2x-24=0?
Answer:
x = 4, -6
Step-by-step explanation:
x = 4, -6
Emilia waited 11 minutes for the bus today. That is 4 minutes less than she waited yesterday. How long did Emilia wait for the bus yesterday?
11 minutes + 4 minutes more yesterday = 15 total minutes
Answer: 15 minutes
Answer:
Emilia waited 11 minutes wich was 4 minutes earlier so 11+4 because it was 4 miutes earlier so 11 minutes + 4 minutes = 15 minutes so this means Emilia wait 15 minutes for the bus yesterday
Step-by-step explanation:
Consider 2 1/2 divided by 1/4 write a real world problem for the division.Create a model or write an equation for the division.Find the quotient for the real world problem.Find the quotient.
Answer:
Step-by-step explanation:
How many 1/4 kg bread loaves can be made from 2½ kg of dough?
2½ / 1/4 = (5/2)•(4/1) = 20 / 2 = 10
The number of puffs made by 2½ kg of dough will be 10.
What is an expression?The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.
The problem is given below:-
How many 1/4 kg puffs can be made from 2½ kg of dough?
The number of the puffs will be calculated as:-
2½ / 1/4 = (5/2) x (4/1) = 20 / 2 = 10
Therefore, the number of puffs made by 2½ kg of dough will be 10.
To know more about an expression follow
https://brainly.com/question/21446512
#SPJ5
Select all the statements that show correct reasoning for finding 14/15÷7/5 Group of answer choices Multiplying 1415 by 5 and then by 17. Multiplying 1415 by 5 and then dividing by 7. Dividing 1415 by 5, and then multiplying by 17. Multiplying 1514 by 7 and then dividing by 5. Multiplying 14/15 by 7 and then multiplying by 15.
IF YOUR ANSWER IS INCORRECT OR BS I WILL GIVE YOU 0 STARS AND TAKE MY POINTS BACK!!!!!
Answer:
Option BStep-by-step explanation:
Correct way of dividing fractions:
14/15 ÷ 7/5 = 14/15 × 5/7Answer choices
A) Multiplying 14/15 by 5 and then by 17. FALSEB) Multiplying 14/15 by 5 and then dividing by 7, TRUEC) Dividing 14/15 by 5, and then multiplying by 17. FALSED) Multiplying 15/14 by 7 and then dividing by 5. FALSEE) Multiplying 14/15 by 7 and then multiplying by 15. FALSELet's see
[tex]\\ \sf\longmapsto \dfrac{14}{15}\div \dfrac{7}{5}[/tex]
[tex]\\ \sf\longmapsto \dfrac{14}{15}\times \dfrac{5}{7}[/tex]
[tex]\\ \sf\longmapsto \dfrac{70}{105}[/tex]
[tex]\\ \sf\longmapsto \dfrac{2}{3}[/tex]
A woman wants to get to two destinations, A and B. From home to A there are 5 possible routes. From A to B
there are 5 possible routes. How many possible routes are there from home to B, if all of them go through A first?
From home to A has 5 routes. Ex: Route A,B,C,D,E.
A to B has 5 routes. Ex: Route F,G,H,I,J
The shorter way is 5x5 = 25
The longer way is A.F , A.G, A.H, A.I, A.J. + B.F, B.G, B.H, B.I, B.J and continue on...
с
6
D
15
8
B
?
А
1) Find the missing side length.
es
A) 14
B) 16
18
D) 20
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its
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3
Answer:
The answer would be 19
Step-by-step explanation:
Using pythagoras theorem
15+6= 21
a^2+b^2= c^2
In this scenario,
c^2-a^2= b^2
Meaning it would be 21^2+8^2
= 377
Square root of 377 would be 19.416
?= 19.416
The missing side length of the right angle triangle is 20
How to solve missing sides using Pythagoras theoremPythagoras theorem States that the square of the longest side of a triangle is equal to the sum of the square of the opposite side and no square of the adjacent side.
The diagram is a right angle triangle with sides AB, BC and CA.The longest side is BCBC² = AB² + CA²
(15 + 6)² = x² + 8²
21² = x² + 8²
21² - 8² = x²
441 - 64 = x²
377 = x²
find the square root of both sidesx = √377
x = 19.41648783894759891856148511263886343
Approximately to the nearest whole number
= 20
Learn more about Pythagoras theorem:
https://brainly.com/question/654982
A shirts costs $20, the cost of the shirt increases 30%, what is the price of the shirt now?
Answer: 10
Step-by-step explanation:
Write in word form: 5,278.081
Answer:
.............................
Need help with 17 pre college
Miles is 33 year old and single in 2020 his only income consisted of $10500 in wages what is the maximum amount he can contribute to a traditional ira for 2020
Answer:
$6,000
Step-by-step explanation:
$6,000 Because miles younger than 50
plz help with this!!!
Answer:50
Step-by-step explanation:
how do you do 4 3/16 + 1 1/10?
Answer:
5 23/80
Step-by-step explanation:
First, you need to find the least common multiple of 16 and 10 to add the fractions. The LCM of 16 and 10 is 80. You have to multiply 5 to 16 to get 80 and 8 to 10 to get 80, so you also multiply the numerator by those numbers. In the end you would get 4 15/80+1 8/80, which equals 5 23/80.
Help please!!!!!!!!!!!!!!
Answer:
Negative
Step-by-step explanation:
Slope is negative since as x increases, y decreases.
When asked to factor the trinomial 8x^2-8x-16) a student gives the answer (X - 2)(x + 1). What is one thing wrong with this answer? - A. 8 is also a factor of this trinomial B. The minus sign should be a plus sign C. The factors are not simplified D. There is nothing wrong with the answer
Answer:
8 is also a factor of this trinomial
Step-by-step explanation: