Evaluate.

(a−2b)3 when a=−3 and b=−1/2

Enter your answer in the box.

Answers

Answer 1

Answer:

[tex]-3.5[/tex]

Step-by-step explanation:

[tex](a-2b)^{3} \\=a^{3}-6a^{2} b+6ab^{2}-8b^{3}[/tex]

Given that,

[tex]a=(-3)\\b=(-1/2)[/tex]

So,

[tex](a-2b)^{3} \\=a^{3}-6a^{2} b+6ab^{2}-8b^{3}\\=(-3)^{3}-6* (-3)^{2} *\frac{-1}{2} +6*(-3)*(\frac{-1}{2} )^{2} -8*(\frac{-1}{2} )^{3} \\= (-27)-6*9*\frac{-1}{2} +-18*\frac{1}{4} -8*\frac{-1}{8} \\=(-27)-6*-4.5-4.5+1\\=-27+27-4.5+1\\=-3.5[/tex]

Hope this helps you

Let me know if you have any other questions :-)


Related Questions

Use the given figure to find the length of x. x+14 x 8​

Answers

If you’re wanting the answer it’s x+112

Fin de range of the data 1 0 5 6 7 9 1 6

Answers

The answer of range I think is 9, due to you needing to put the numbers in order with 0 being the least and 9 being the most. Range is subtracting the highest and lowest number. So it is either 9 or 8 if they won’t count 0 as a number.

please help me solve this !
will mark brainliest !
(spammers reported)

Answers

Answer

-10

Step-by-step explanation:

-8w-7=9

add 7 to both sides

-8w=16

divide by negative 8 on both sides

w=-2

w-8=-10

On simplifying,

-8w - 7 = 9

-8w = 16

w = -2

then,

= w - 8

= -2 - 8

= -10.

Which of the following is an equation of the line In the graph? A.3x-y=4 B.3x+y=4 C.-3x-y=4 D.-3x+y=4m

Answers

9514 1404 393

Answer:

   B.  3x+y=4

Step-by-step explanation:

The constant on the right is positive, so the signs of the coefficients match the signs of the respective intercepts. The graph shows both x- and y-intercepts are positive, so the equation will have positive coefficients everywhere. The appropriate choice is ...

  3x +y = 4

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two
sides of this triangle?
5 cm and 8 cm
6 cm and 7 cm
7 cm and 2 cm
8 cm and 9 cm

Answers

Answer:

(A) 5cm and 8cm

Step-by-step explanation:

Look to find out the triangle side you here to add and find outnth sum.

QUESTION IN PIC
CORRECT ANSWER GETS BRAINEST

Answers

Answer: 0.8333

Step-by-step explanation:

5x - 3y - 25 = 0 as well as the values ​​of p, w, and draw the graph​

Answers

My work to your question

The fastest a human has ever run is 27 miles per hour. How many miles per minute did the human run? Explain your answer.

Answers

Answer:

0.45 miles per minute

Step-by-step explanation:

What is the circumference of a circle when the diameter is 8cm?

Answers

Answer:

C = 25.13cm

C = π d = π · 8 ≈ 25.13274cm

Answer:

the answer is 4cm circumference

These two are balanced.

True or false? Also I’m sorry ab the photos quality

Answers

True because they both equal 27

2.57 mi/hr= how many m/min? Simplify your answer, round to the nearest tenth. Thanks.

Answers

Answer is 68.9 m/min.

Step-by-step explanation :-

Let's convert the units. To do this, we need to cancel the original units to get the units we want. We achieve this the following way :-

[tex]2.57 \frac{mi}{hr} \times \frac{1069.34 \: m}{1 \: mi} \times \frac{1 \: hr}{60 \: min} [/tex]

[tex] =>68.9 \: \frac{m}{min} [/tex]

Therefore, 2.57 mi/hr is the same as 68.9 m/min .

✍️ By Benjemin ☺️

What is the product (7 10)*(5 x 108)? Be sure to express your
answer in scientific notation.
?
(7* 10^-5) * (5 x 10^-8) = ? * 10
DONE

Answers

[tex](7 \times 10) \times (5 \times 108) \\ 70 \times 540 \\ = 37800 \: or \: 3.78 \times 10 {}^{4} [/tex]

Solved ✔︎

What is the measure of z? z = [?]​

Answers

The measure of z in its simplest form is 3√11

We solve the triangle using pythagoras' theorem.

What is pythagoras' theorem?

Pythagoras' theorem states that in any right angled triangle with sides a, b and hypotenuse side, c which is the longest side, the square of the hypotenuse side equal the sum of the squares of the other two sides.

So, according to Pythagoras' theorem,

c² = a² + b²

The required equations

Since we have three right angled triangles, in the smallest right angled triangle, we have

z² = y² + 3²  (1)

In the next larger right angled triangle, we have

x² = y² + 27² (2)

In the largest right angled triangle, we have

(3 + 27)² = z² + x²

30² = z² + x² (3)

Substituting (2) into (3), we have

30² = z² + x²

30² = z² + y² + 27²

30² - 27² = z² + y²

900 - 729 = z² + y²

171 = z² + y²

z² = 171 - y² (4)

Equating (1) and (4), we have

y² + 3² = 171 - y²

y² + 9 = 171 - y²

y² + y² = 171 + 9

2y² = 180

y² = 180/2

y² = 90

The measure of z

Substituting y² into (1), we have

z² = y² + 3²

z² = 90 + 9

z² = 99

z = √99

z = 3√11

So, the measure of z is 3√11

Learn more about pythagoras' theorem here:

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Answer: first answer 3, 2nd answer 10.

Step-by-step explanation:

I just did the question on acellus

At a youth club there are 3 boys for every 4 girls if there 12 boys at the club , how many girls are there

Answers

Answer:

16

Step-by-step explanation:

i use tally marks

Answer:

16 girls.

Step-by-step explanation:

There are two ways,

The Relationship between each ratio is multiplying by 4.

Or cross multiply;

12×4=48

48÷3=16

Hope you're having a splendiferous day or evening.

3. A cookie recipe called for 3 1/2 cups of sugar for every 2 1/6 cups of flour.
a. What is the unit rate of cups of
sugar to cups of flour?
b. How many cups of sugar would
you need if you used 6 cups of
flour?

Answers

3.5 to 2.167

2.80

Step-by-step explanation:

Choose the number sentence that illustrates the distributive property of multiplication over addition.

A. 2x(5+ 6) = (2 x 5) + 6

B. 2x (5 + 6) = (2 x 5) + (2 x 6)

C. 2x(5 + 6) = (2+5)* (2 +6)

Answers

Answer:

One number sentence shows the distributive property of multiplication over addition. ... (5 + 4) × 3 = (5 × 3) + (4 × 3) is an example of the distributive property. (5 − 4) × 3 = 1 × 3. 1 × 3 is not equal to (1 × 3) − (1 × 3).

Step-by-step explanation:

A

A retail store owner buys 300 cups from a manufacturer. The retail store owner pays a flat delivery fee of $50 in addition to $2 for each cup delivered. If a cup is scratched upon delivery, the manufacturer provides a refund of $1 per scratched cup. If the store owner pays the manufacturer $584 for the 300 cups, how many scratched cups are there?

Answers

Answer:

284 scratched cups

Step-by-step explanation:

it's in the picture

Karen has two dogs. The larger dog weighs 1.4 pounds more than the
smaller dog. The combined weight of the two dogs is 12.6 pounds. What is
the weight, in pounds, of the smaller dog? Only type in a numeric
response.

Answers

The answer is 11.2 pounds.

Answer:

11.2

Step-by-step explanation:

solve

anglessssssssssssssssssssssssssssssssssssssssssssss

Answers

Answer:

x = 12

Step-by-step explanation:

Melissa has 885 cards and she wants to store them in envelopes. She has 35 envelopes. How many envelopes does she need

Answers

Answer:

I don't know

Step-by-step explanation:

I don't understand the point of this probem. It says that she has 35 envelopes best it doen't say how much can fit into each one. Maybe you ftogot some details pls reply in the comments.

Kelly tried to solve the following equation,

Answers

Answer:

wich question??????????????

cual

no te entiendo me puedes explicar

32•25 in subtraction

Answers

Answer:

7

Step-by-step explanation:

32 because all you need it to count it you can use your fingers too

-25

7

|3x−8|>−1. Write your solution in interval notation.

Answers

Answer:

(− ∞ , 1 /3 )  ∪  ( 5 , ∞ )

Step-by-step explanation:

what is 0 - 9 equal

Answers

Answer:

no

0-9 is nine

coz zero have no value to subtaract 9 from zero

-3 = -11 # -10 H + 05 > -15 -5 10 15 Stuck? Review related articles/videos or use a hint.​

Answers

weooooooooooooooooooooooooooooooooooooo9ooooooooooow

Write the equation of the line that passes through the points (-3, -3) and (8,7).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.

Answers

Answer:

y + 3 = 10/11(x + 3)

Step-by-step explanation:

Given the points (-3, -3) and (8, 7), we can use these coordinates to solve for the slope of the line using the formula:

[tex]m = \frac{y2 - y1}{x2 - x1}[/tex]

Let (x1, y1) = (-3, -3)

(x2, y2) = (8, 7)

Substitute these values into the slope formula:

[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{7 - (-3)}{8 - (-3)} = \frac{10}{11}[/tex]

Thus, slope (m) = 10/11.

Next, using the slope (m) = 10/11, and one of the given points (-3, -3), we'll substitute these values into the point-slope form:

y - y1 = m(x - x1)

Let (x1, y1) = (-3, -3)

m = 10/11

y - y1 = m(x - x1)

y - (-3) = 10/11[x - (-3)]

Simplify:

y + 3 = 10/11(x + 3) this is the point-slope form.

Find the radius of the cone.​

Answers

Answer:

Radius = 6

Step-by-step explanation:

The volume of a cone is V= pi*r^2*h/3

In this case, h=18 in.

Volume= 216pi in^3

So all you need to do is plug in and solve.

216pi = pi*r^2 *6

36=r^2

r=6

Radius of cone is 6 in.

What is cone?

A cone is a shape created by connecting all the points of a circular base (which does not contain the apex) to a common point known as the apex or vertex using a series of line segments or lines.

Given that;

Volume of cone =  216π in³

Height = 18 in

Since we know that,

The volume of a cone is V= πr²h/3

Therefore plug the values,

⇒216π = πr²(18)/3

⇒    36 = r²

⇒       r = 6 in

To learn more about cone visit:

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What is your weight on Mars? (g = 3.75 m/s^2)

Answers

mark me brainiest if this helps;


Answer: 50 kilograms

Find f( -7) if f(x) = 3 - 2x.A)-24B)-11C)17D)23

Answers

Answer:

C) 17

Step-by-step explanation:

f(-7) = 3 - 2(-7)

f(-7) = 3 + 14

f(-7) = 17

Hope this helps! Pls give brainliest!

Answer:

C) 17

Step-by-step explanation:

Hope it helps

Peace Out

Hope you have a good day

HELP PLEASE!!!!!!!!!!!

Answers

Answer:

x = 4.4

Step-by-step explanation:

The ratios of corresponding sides are in proportion , that is

[tex]\frac{x}{11}[/tex] = [tex]\frac{4}{10}[/tex] ( cross- multiply )

10x = 44 ( divide both sides by 10 )

x = 4.4

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