if a+b= -1 then the value of a^3+b^3 - 3ab= ?

Answers

Answer 1

Answer:

-1

Step-by-step explanation:

[tex](a + b)^{3} = {a}^{3} + {b}^{3} + 3ab(a + b) \\ ( - 1)^{3} = {a}^{3} + {b}^{3} + 3ab( - 1) \\ - 1 = {a}^{3} + {b}^{3} - 3ab\\ \\ \huge \red{ \boxed{{a}^{3} + {b}^{3} - 3ab = - 1}}[/tex]


Related Questions

1. CD Express offers 4 CDs for $60. Nuse Place
offers 6 CDs for $25. Which store offers the
better buy?

Answers

Answer:

Answer 2.

Step-by-step explanation:

4 CDs for $60 vs 6 CDs for $25?

At CD Express you'll spend $240 while only spending $150 at Nuse Place.

A square has a perimeter of 28 ft. What is the length of each side? and it is in ft

Answers

Answer: 7 feet

Step-by-step explanation:

Since all 4 sides of a square are equal, you do 28 / 4 = 7 feet, which is the answer.

Answer:

d

Step-by-step explanation:

A parallelogram has a base of 3.5 units and a corresponding height of 2 units. What is its area? A parallelogram has a base of 3 units and an area of 1.8 square units. What is the corresponding height for that base? A parallelogram has an area of 20.4 square units. If the height that corresponds to a base is 4 units, what is the base?

Answers

Answer:

for first parallelogram

Area of parallelogram = b*h= 3.5*2= 7square unit

for second parallelogram

Area of parallelogram = b*h = 1.8 square unit

or, 3*h = 1.8

h= o.6unit

For third parallelogram

Area of parallelogram = b*h = 20.4square unit

4*b= 20.4

b=5.1 unit

Step-by-step explanation:

Space is ok ya know that it’s is 20.4 square units

whats the answer to this problem 9x+10=2001-X

Answers

Answer: x=1991/10

Step-by-step explanation: Step 1: Simplify both sides of the equation.

9x+10=2001−x

9x+10=2001+−x

9x+10=−x+2001

Step 2: Add x to both sides.

9x+10+x=−x+2001+x

10x+10=2001

Step 3: Subtract 10 from both sides.

10x+10−10=2001−10

10x=1991

Step 4: Divide both sides by 10.

10x

10

=

1991

10

x=

1991

10

Answer:x=199.1

Step-by-step explanation:

In a quiz show, I get 23 out of 50 questions right. What
percentage did I get right?

Answers

Answer:

46%

Step-by-step explanation:

percentage=23÷50×100%

=46%

Answer:

I'm not sure but i think it's 46% of questions

Christian wants to make an A in his class. There are 5 exams this year, and he has taken 4 of them. His grades were 84, 88, 95, and 104. What grade must Christian earn on the last exam to get an average of at least a 90?

Answers

Answer:

last test grade=x     x ≥ 79 so 79%

Step-by-step explanation:

(84/5)+(88/5)+(95/5)+(104/5)+(x/5) ≥ 90

Simplify: (371/5)+(x/5) ≥ 90

Subtract (371/5) from both sides

Then you have (x/5) ≥ (79/5)

Then multiply both sides by 5 and you have x ≥ 79

P.S. If it was helpful please consider giving me brainliest. =)

what is X 2x + 3 =15

Answers

2x + 3 =15

the answer is x=6 !!

Answer:

x = 6

Step-by-step explanation:

2x + 3 = 15

2x = 15 - 3

2x = 12

2x/2 = 12/2

x = 6

What is the value of the expression below when y
7 and z = 5?
y + 10z

Answers

Answer:

57

steps:

10 x 5= 50

7 + 50 =57

Reduce each fraction below 6/6= 10/2= 2/6=

Answers

Answer:

6/6 = to 1

10/2=to 5

2/6= to 1/3 or 0.3333333333

Step-by-step explanation:

6/6 divide by 1

10/2 10 divide by 2

2/6 reduce to 1/3 or o.3333333333

Which answer gives the correct inequality for the following number line?

Answers

Answer:

n < -2

Step-by-step explanation:

Numbers to the left from -2

Set of numbers:

(- oo, -2)

The inequality for the given line:

n < -2

f(x) = 3x ^ 2 + 2x + 10

Answers

Answer:

No x-intercept (zero)

f(0)=10

Step-by-step explanation:

No x- intercept/Zero

Step-by-step
F(x) = 3x^2 + 2x + 10
To find x-intercept/zero, Substitute
F(x) = 0
0 = 3x^2 + 2x + 10
Swap the side of the equation
3x^2 + 2x + 10 = 0
Solve the quadratic equation
ax^2 +b+c = 0
X= -b+ b^2 -4 a c/ 2a
X= -2+ 2^2 -4 x 3 x 10/2x3
X= -2+ 4-4 x 3 x 10/ 2 x 3
-> x=-2+ 4-120/2 x 3 -> x=-2 4-120/6
X=-2+ -116/6
-> calculate the difference
X= -2+ -116/6
The square root of a negative
number dose not exit in the set of
Real numbers
No x-intercept/zero

What is the third multiple of 167?

Answers

501

167x 3=501

Brainliest?

-2(6m + 5) = -5m + 18

solve for m

Answers

Answer:

m =-4

Step-by-step explanation:

-12m-10=-5m+18

add 5m to both sides

-7m-10=18

add 10 to both sides

-7m=28

divide both sides by -7

m= -4

Answer: m = -4

Step-by-step explanation: First distribute to get -12m -10 = -5m+18, then add 5m on both sides to get -7m -10 = 18, then add 10 on both sides to get -7m = 28, finally divide by -7 on both sides to get m = -4.

Hope this helps!

B is between A and C. If AB = x - 5, BC = x + 14, and AC = 35 then x = ________ (just enter your answer as the number only)

Answers

Answer:

x=13

like the other person said but ill show you how

Step-by-step explanation:

(x-5)+(x+14)=35

add the x's together

add up the -5 and the 14

2x+9=35

subtract 9

2x=26

divide 2

x=13

Mathematics Diagnostic Assessment
14
Miller inventoried the batteries in his house. The two-way table below shows the data he collected.
AA
Total
29
18
AAA
11
14
Disposable
Rechargeable
Total
7
21
25
25
Ihs 50
Which correlation does the two-way table suggest?
A. The rechargeable batteries tend to be AAA.
B. None of the correlations listed are correct.
C. The rechargeable batteries tend to be AA.
D. The disposable batteries tend to be AAA.
tum. All rights reserved,
e here to search
o

Answers

Answer:

The rechargeable batteries tend to be AAA.

Step-by-step explanation:

Have a good day :)


A little help here thank you!!!

Answers

Answer:

∠B = 82°

Step-by-step explanation:

(see attached for reference)

recall the property that an exterior angle of a triangle is equal to the sum of its two remote interior angles.

in our case, the exterior angle is obtuse ∠A = 143°

the two remote interior angles are ∠C and ∠B

hence according to our definition above:

143° = ∠C + ∠B  (we are given that ∠C =61°)

hence

143° = 61° + ∠B

143° - 61° =  ∠B

∠B = 82°

can u help me with the problem below


(-4)- 6​

Answers

Since you are subtracting a negative you would add them together equaling -10

-10 when your subtracting negative number of them together

Help ASAP and explain why ?!

Answers

Answer:

A

Step-by-step explanation:

The area equal to a square that is 1 centimeter on each side.

Write the following standard forms into exponential form 3 x 3 x 3 x 3 and 7 x 7.

Answers

Answer: 3^4, 7^2

Step-by-step explanation:

3 times itself 4 times! Seven times itself 2 times

3*3*3*3 = 3 with power of 4
7*7= 7 with power of 2

A square has a side length of 9 cm2 what is the area

Answers

Answer: 81 cm^2

Steps:

A = l x w
A = 9 x 9
A = 81

If the translation of (x,y)->(x-5, y+2) was applied to the triangle ABC below, what would be the coordinates for A' after the translation?

Answers

Answer:

(-3,0)

Step-by-step explanation:

When translating, anything positive when talking about x would move x to the right. Negative, left, so you would move point a 3 units to the left.

When translating, anything positive when talking about y would move y up. Negative, down, so you would move point a 2 units up.

Explain why this is not a function

Answers

Answer:

Because a range cannot have more than one domain number

Step-by-step explanation:

17 is in the domain twice

This is not a function because a range cannot have more than one domain

Of Q is the midpoint od RP, Find the coordinates of R if P(9,-2) and Q (4,5)

Answers

Answer:

(-1,12)

Step-by-step explanation:

let R be(x,y)

Q(4,5)=midpoint

R(x,y)=(x1,y1)

p(9,-2)=(x2,y2)

now,

(4,5)= x1+x2/2 , y1+y2/2

(4,5)= x+9/2 , y-2/2

so,

x+9/2=4              y-2/2=5

x+9=8                  y-2=10

x= -1                      y=12

therefore, R(x,y)= (-1,12)

in grouped data each of the group is called? ​

Answers

Answer:

The class interval.

In a group data each group is called class interval.

What is the graph of g?

Answers

Answer:

function gis defined as g (6) = - f (-4) graph

Statements Reasons
Given: Z1 and 22 are supplements,
23 and 24 are supplements,
and 21 24.
Prove: 22 23
m21+ m2 = 180
mZ3+ m 24 = 180
21 and 22 are
.
2124
m21+ m2 2 = m 23+
m24
23 and 24 are supp
1
Statements
Reasons
3
2.
2
1
Assemble the proof by dragging tiles to
the Statements and Reasons columns.


Answers

got it correct edge 2021

The proof that m∠2 = m∠3 in the two column proof table is; shown in the various steps and concludes with subtraction property of equality

How to complete the two column proof?

We are given;

∠1 and ∠2 are supplements

∠3 and ∠4 are supplements

∠1 ≅ ∠4

Now, since ∠1 and ∠2 are supplements, it means that;

m∠1 + m∠2 = 180° because of the definition of supplementary angles.

Since ∠3 and ∠4 are supplements, it means that;

m∠3 + m∠4 = 180° because of the definition of supplementary angles.

We are told that ∠1 ≅ ∠4

Thus;

m∠1 + m∠2 = m∠3 + m∠1 (Substitution property of equality)

Finally, we can reduce to get;

m∠2 = m∠3 (subtraction property of equality)

Read more about two column proof at; https://brainly.com/question/1788884

Help please!!! Thank you!
Choose the equation that represents this situation. Use t to represent the
number of tickets sold, and use m to represent the total money raised.
The junior class sells tickets to a talent show to raise money. Each ticket sells
for $8. How much money do they raise?
A.m=t divided by 8
B.m=8+t
C.m=8t
D.t=8m

Answers

Answer:

m=8t

Step-by-step explanation:

money raised will equal 8 dollars per ticket sold

Help plz.




................

Answers

Answer:

-2, 14 is your answer.  Hope this helps!

Step-by-step explanation:

If k(-5, 10) is midpoint and (-8, 6) is one side then you add -3 and subract 4 to get L.  That means subtract 3 from -5 and add 4 to the 10.

6+(-6) what is the answer to this I’m confused and I have test about this tommorow

Answers

Ohhhhhhhhhhhh dm me

Answer: The answer is 0

7. What is the sign of c:d, c>0 and d<0?
POSITIVE
O NEGATIVE
ZERO

Answers

Answer:

It would be c>0

Step-by-step explanation:

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