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
Snowcat [4.5K]
3 years ago
14

Find the cube of : (2a-b)

Mathematics
2 answers:
Molodets [167]3 years ago
6 0

Answer:

It is step by step ,you can directly copy it but you don't need to copy the formula in your answer

Step-by-step explanation:

(2a-b)

olchik [2.2K]3 years ago
4 0

Answer:

Step-by-step explanation:

(2a + b)³

(2a)³ + b³ + (3)(2a)²(b) + (3)(2a)(b)²

8a³ + b³ + 12a²b + 6ab²

You might be interested in
As a lifeguard, sara earns a base pay of $80 per day. if her day involves swim instruction, sara earns an additional 9t dollars,
zhuklara [117]

Answer:

Step-by-step explanation:

Sara's base pay is $80

(a) The 9t represents the additional amount of money that she earns if she gives instruction for t hours. 9 stands for $9 per hour

b)The term in the expression is t which stands for the number of hours that she instructs. The coefficient is 9 which stands for the hourly rate

c) The expression for 7 hours would be

We will substitute t into 80 + 9t. It becomes

80 + 9×7

d) in all, she will earn

80 + 9×7 = $143

4 0
3 years ago
Write the standard form of the equation of a line if the point on the line nearest to the origin is at (6, 8).
Alchen [17]

Answer:

\large\boxed{y=\dfrac{4}{3}x}

Step-by-step explanation:

The line passes through the origin has an equation y = mx

m - slope

The formula of a slope of a line passes through the origin

and a point (x, y):

m=\dfrac{y}{x}

We have the point (6, 8). Substitute:

m=\dfrac{8}{6}=\dfrac{8:2}{6:2}=\dfrac{4}{3}

Finally:

y=\dfrac{4}{3}x

4 0
3 years ago
Evaluate x³ for x=2.
loris [4]

Answer:

8

Step-by-step explanation:

If we have anything to the third power, we are multiplying the number by itself 3 times.

If x = 2, then the expression is 2^3.

2\cdot2\cdot2=8

Hope this helped!

7 0
3 years ago
Read 2 more answers
The bases of a trapezoid are 11 meters and 14 meters. Its height is 10 meters. What is the area of the trapezoid?
kenny6666 [7]
Area of Trapezoid = (1/2) * (Sum of bases) * height

Area =   (1/2) * (11 + 14) * 10

        =    (1/2) * 25 * 10   =    5 *25 = 125

Area = 125 m²
4 0
3 years ago
Using either the critical value rule or the p-value rule, if a one-sided null hypothesis for a single mean cannot be rejected at
KiRa [710]

Answer:

Step-by-step explanation:

Using either the critical value rule or the p-value rule, a conclusion can be drawn at a level of significance (alpha)

The null hypothesis: u = hypothesized mean

Alternative hypothesis: u > u0 or u < u0 for a one tailed test

Alternative hypothesis for a two tailed test: u =/ u0

To draw a conclusion by failing to reject the null hypothesis as stated then: using critical value

Observed z score > critical z score for both the one and two tailed test.

Or using p value:

P-value > alpha for a one tailed test

P-value > alpha/2 for a two tailed test

Thus, if a one-sided null hypothesis for a single mean cannot be rejected at a given significance level, then the corresponding two-sided null hypothesis will also not be rejected at the same significance level.

8 0
3 years ago
Other questions:
  • Find the length of the hypotenuse of a right triangle with legs of lengths 12 ft and 16 ft answer
    15·1 answer
  • Maili overdrew her checking account by $67, for which her bank charged her a $25 overdraft fee. If she deposits $80, how much mo
    6·2 answers
  • The probability of reaching a certain point value in a popular video arcade game is listed in the table. Given that the table is
    9·1 answer
  • If one factor of 6.x2 + 5x – 6 is
    11·2 answers
  • Help me plz and explain
    5·1 answer
  • Can someone help me please​
    5·2 answers
  • At thanksgiving mr Jones overcooked The turkey so all but 4/5 of you have been thrown away the eight people at dinner that night
    13·1 answer
  • In 2009, a town's population was about 9,000 residents. In 2014, the population was about 12,500 residents. Which linear model r
    15·2 answers
  • Need this real quick, please.
    13·2 answers
  • What is the reciprocal of 1/x^3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!