how do solve this (-m ^3)(7z)

Answers

Answer 1

Answer:

-7m³z

Step-by-step explanation:

(-m³)(7z) = -7m³z


Related Questions

A set of 9 numbers has a mean of 20. What additional number must be included in this set to create a new set with a mean that is 4 less than the mean of the original set?

Answers

Greetings from Brasil...

The average for a set of 9 elements will be

(A + B + C + D + E + F + G + H + I) ÷ 9 = 20

Let's make (A + B + C + D + E + F + G + H + I) like S

(I chose S to remember a sum)

Let us think.....

S ÷ 9 = 20

S = 20 × 9

S = 180

So,  (A + B + C + D + E + F + G + H + I) = 180

According to the statement, we will include a number (element J) in the sum to obtain a mean of (20 - 4), that is:

(A + B + C + D + E + F + G + H + I + J) ÷ 10 = (20 - 4)

as seen above, (A + B + C + D + E + F + G + H + I) = 180, then

(180 + J) ÷ 10 = 16

(180 + J) = 160

J = 160 - 180

J = - 20

So, including the number - 20 (minus 20) in the original mean we will obtain a new mean whose result will be 16

Please solve, 7(2-2x)= -13-5x​

Answers

Answer:

[tex]x=3[/tex]

Step-by-step explanation:

We can try and isolate x on one side of the equation to find its value.

First let's apply the distributive property on the left side and get a simpler equation.

[tex]7(2-2x)=-13-5x\\\\14-14x = -13-5x[/tex]

Now, to simplify this down, we can add 5x to both sides.

[tex]14-14x + 5x = -13-5x + 5x\\\\14-9x=-13[/tex]

Now we can add 13 to both sides:

[tex]14-9x+13=-13+13\\\\27-9x=0[/tex]

Now we subtract 27 from both sides:

[tex]27-9x-27=0-27\\\\-9x=-27[/tex]

And finally we divide both sides by -9.

[tex]-9x\div-9=-27\div-9\\\\x=3[/tex]

Hope this helped!

Answer:

[tex]\Huge \boxed{x=3}[/tex]

Step-by-step explanation:

[tex]7(2-2x)= -13-5x[/tex]

Expanding brackets.

[tex]14-14x= -13-5x[/tex]

Adding 5x and -14 to both sides.

[tex]-14x+5x=-13-14[/tex]

[tex]-9x=-27[/tex]

Dividing both sides by -9.

[tex]x=3[/tex]


2 which of the following is a perfect cube
a) 400 -
D. 3375–
C 8000 -

Answers

Answer:

8000 is a perfect cube but 3375 can be also but i m a little sure that 8000 is a perfect cube

Point M is the midpoint between points A and B. If A(-7, 2) and B(-1,-4)
find the location of M.

Answers

Answer:

  M(-4, -1)

Step-by-step explanation:

M = (A +B)/2

M = ((-7, 2) +(-1, -4))/2 = (-8, -2)/2 = (-4, -1)

The location of M is (-4, -1).

Simplity (a+(-a) ) + b​

Answers

Answer:

Hey there!

(a+(-a))+b

a-a+b

b

Let me know if this helps :)

Answer:

b // (a-a)+b

Step-by-step explanation:

(a+(-a)) +b

(a-a)+b

b

If f(x) = 2x +3, what is f(-3)? Show work.
A)-3/
B) -4
C) -5
D-6

Answers

Answer:

f(-3) = -3

Step-by-step explanation:

f(x) = 2x +3

Let x = -3

f(-3) = 2*-3 +3

     = -6+3

     = -3

Answer:

-3

Step-by-step explanation:

1. Subsitute x for -3

2. multiply 2(-3) = -6

3. add -6 +3

4. f(-3) is -3

Find the volume of a cylinder that has a diameter of 12 in. and a height of 15 in

Answers

Answer:

[tex] \sf{ \boxed{ \bold{1697.14}}}[/tex]

Step-by-step explanation:

Given,

diameter ( d ) = 12 in

height ( h ) = 15 in

finding the radius of a cylinder

Radius is just half of diameter.

Radius ( r ) = 12 / 2 = 6 in

finding the volume of a cylinder having radius of 6 in and height of 15 in

Volume of a cylinder = [tex] \sf{\pi \: {r}^{2} h}[/tex]

⇒[tex] \sf{ \frac{22}{7} \times {6}^{2} \times 15}[/tex]

⇒[tex] \sf{ \frac{22}{7} \times 36 \times 15}[/tex]

[tex] \sf{1697.14} \: in[/tex]

Hope I helped!

Best regards!!

Answer: 1697.1[tex]in^{3}[/tex]

Step-by-step explanation:

diameter= 12

radius= [tex]\frac{diameter}{2}[/tex] = [tex]\frac{12}{2}[/tex] = 6

height = 15

volume =π[tex]r^{2}[/tex]h

[tex]\frac{22}{7} X 6^{2} X 15[/tex] =1697.1[tex]in^{3}[/tex]

Solve log x = 4.
Ox=4
O x = 40
Ox= 1,000
Ox= 10,000

Answers

Hi there! :)

Answer:

[tex]\huge\boxed{x = 10,000}[/tex]

Given:

[tex]logx = 4[/tex]

The given expression is a logarithm with a base of 10, therefore we can rewrite this as:

[tex]10^{4} = x[/tex]

Evaluate:

[tex]x = 10,000[/tex]

Consider the system of quadratic equations \begin{align*} y &=3x^2 - 5x, \\ y &= 2x^2 - x - c, \end{align*}where $c$ is a real number. (a) For what value(s) of $c$ will the system have exactly one solution $(x,y)?$ (b) For what value(s) of $c$ will the system have more than one real solution? (c) For what value(s) of $c$ will the system have no real solutions? Solutions to the quadratics are $(x,y)$ pairs. Your answers will be in terms of $c,$ but make sure you address both $x$ and $y$ for each part.

Answers

Hello, we need to solve this system, c being a real number.

[tex]\begin{cases}y &= 3x^2-5x\\y &= 2x^2-x-c\end{cases}[/tex]

y=y, right? So, it comes.

[tex]3x^2-5x=2x^2-x-c\\\\3x^2-2x^2-5x+x+c=0\\\\\boxed{x^2-4x+c=0}[/tex]

We can compute the discriminant.

[tex]\Delta=b^2-4ac=4^2-4c=4(4-c)[/tex]

If the discriminant is 0, there is 1 solution.

It means for [tex]4(4-c)=0 <=> 4-c=0 <=> \boxed{c=4}[/tex]

And the solution is

[tex]x_2=x_1=\dfrac{4}{2}=2[/tex]

If the discriminant is > 0, there are 2 real solutions.

It means 4(4-c) > 0 <=> 4-c > 0 <=> [tex]\boxed{c<4}[/tex]

And the solution are

[tex]x_1=\dfrac{4-\sqrt{4(4-c)}}{2}=\dfrac{4-2\sqrt{4-c}}{2}=2-\sqrt{4-c}\\\\x_2=2+\sqrt{4-c}[/tex]

If the discriminant is < 0, there are no real solutions.

It means 4(4-c) < 0 <=> 4-c < 0 <=> [tex]\boxed{c>4}[/tex]

There are no real solutions and the complex solutions are

[tex]x_1=\dfrac{4-\sqrt{4(4-c)}}{2}=\dfrac{4-2\sqrt{i^2(c-4)}}{2}=2-\sqrt{c-4}\cdot i\\\\x_2=2+\sqrt{c-4}\cdot i[/tex]

Thank you.

Suppose the test scores of students in a class are normally distributed with a mean of 86 and a standard deviation of 4. What is the z-score for a student that scored 76 on a test? A.−4 .−2.5 C.2.5 D.4

Answers

Answer:

-2.5

Step-by-step explanation:

Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test

To calculate the z-score, we need to use a mathematical formula

Mathematically;

z-score = (x - mean)/SD

From the question;

x = 76

mean = 86

standard deviation SD = 4

Plugging these values in the equation, we have;

z-score = (76-86)/4 = -10/4 = -2.5

The linear function that models the population of rainbow smelt is y1 = −19.76x + 227, where x = the years since 1990 and y1 = the number of rainbow smelt. The linear function that models the population of bloater fish is y2 =

Answers

The linear function that models the population of bloater fish is y2= -92.57x + 1, 052

The linear equation that determines when the two populations were equal is

-19.76x + 227 = -92.57x + 1052

The solution is x= 11.33 years

In a dessert, the ratio of the number of ounces of dark chocolate used to the number of ounces of white chocolate used is 8 : 5 How many ounces of dark chocolate are used for every 1 ounce of white chocolate used to make the dessert ?

Answers

Answer:

1.6 ounces

Step-by-step explanation:

Divide the ratio by 5 to get the number of ounces of dark chocolate used for 1 ounce of white chocolate, since 5/5 = 1

8/5 = 1.6

5/5 = 1

The new ratio is 1.6 : 1

This means that 1.6 ounces of dark chocolate are used for every 1 ounce of white chocolate

x+5=5+x is an example of what property?

Answers

Answer: Commutative Property

Step-by-step explanation: In Picture.

f(x)= (1,2) (3, -4) (-5, -8)​

Answers

Answer: y= 156

Step-by-step explanation:

y= 12(3-4) (-5 -8)

7 > x/4, solve for x, simplify

Answers

Answer:

28 > x

Step-by-step explanation:

Step 1: Solve the inequality

[tex]7 > \frac{x}{4}\\28 > x[/tex]

Therefore x is any value smaller than 28

Answer:

[tex]\huge\boxed{x<28}[/tex]

Step-by-step explanation:

[tex]7 > \frac{x}{4}\\\\7*4>\frac{x}{4}*\frac{4}{x}\\\\28>x\\\\\boxed{x<28}[/tex]

How do you simplify 4/42

Answers

Answer:

4/42 = 2/21 when simplified down

Step-by-step explanation:

Cancel the common factor: 2

=2/21

Answer:

2/21

Step-by-step explanation:

[tex]\frac{4}{42}\\\\\mathrm{Cancel\:the\:common\:factor:}\:2\\\\=\frac{2}{21}\\\\\left(\mathrm{Decimal:\quad }\:0.09523 \right)[/tex]

PLEASE HELP ME ASAP!!! ILL MARK BRIANLIEST AND GIVE EXTRA POINTS1. When writing a linear equation for a word problem, what are some things to keep in mind or some keywords to watch out for? What do those keywords mean/ why should you watch out for those things?

Answers

Answer:

Some keywords include "starting amount," you should look out for this because it will be the y-intercept for the equation. Another keyword may be "daily" or "monthly" or "yearly," which would be the coefficient of x, or the amount that y increases with an increase of 1 in x.

pls mark brainliest :)

AB is parallel to CD. EG = FG ˆ AEG = 110° ˆ Calculate the size of DGH.

Answers

Opposite exterior angles are congruent.

DGH = AEG

DGH = 110

A bike rental company charges a $10 fee
plus $5 per hour. Sofia has $25 to spend.
Which inequality could you use to find x,
the number of hours Sofia could rent a
bike?

Answers

Answer:

10 + 5x ≤ 25

Step-by-step explanation:

Brendan's dog has a mass of 25,700 grams. What is the dog's mass in milligrams? Show your work.

Answers

Answer:

25700000

Step-by-step explanation:

1,000 miligrams in a gram so 25700*1000 = 25700000

There are a total of 84 people, lions, and giraffes at the zoo. Cassie visits the
zoo and counts 282 total legs. If you were to double the number of people,
that is equivalent to tripling the number of lions. How many of each are at the
zoo?

Answers

Answer:

14 giraffes, 28 people and 42 lions

Step-by-step explanation:

you add how many legs for all 3 x1

add this you have a total 14

double that is 28 triple that is 42

total 84

Drag and drop numbers into the boxes to complete and solve the equation for the situation.
One month, Ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby.
Together they worked 102 hours. Find the number of hours each person worked.
h
Isaac worked____
hours.
Ruby worked____
hours.
Svetlana worked____
hours.

Answers

Answer:

Isaac worked 12 hours

Ruby worked 18 hours

Svetlana worked 72 hours

Step-by-step explanation:

Here in this question, we are interested in knowing the number of hours each person worked.

We proceed as follows;

Let the number of hours Isaac worked be x hours.

From the question, we are told that Ruby worked 6 hours more than Isaac

So the number of hours Ruby worked will be;

(x + 6) hours

Also;

Svetlana worked 4 times as many as Ruby:

This means that we have to multiply the number of hours Ruby worked by 4 to get the number of hours that Svetlana worked;

So the number of hours Svetlana worked will be : 4(x + 6) hours

Since the three worked a total of 102 hours, to get the number of hours each worked, we need to add together the number of hours each individual put in to work and equate to 102;

Mathematically, that would be;

x + x + 6 + 4(x + 6) = 102

2x + 6 + 4x + 24 = 102

6x + 30 = 102

6x = 102-30

6x = 72

x = 72/6

x = 12 hours

So Isaac worked x hours = 12 hours

Ruby worked (x + 6) hours = 12 + 6 = 18 hours

Svetlana worked 4(x + 6) hours = 4(18) = 72 hours

You have ​$85 in your bank account. Each week you plan to deposit ​$7 from your allowance and ​$15 from your paycheck. The equation b=85+​(15+7​)w gives the amount b in your account after w weeks. How many weeks from now will you have ​$210 in your bank​ account?

Answers

Answer:

6 weeks

Step-by-step explanation:

So the amount b we will have in our account w weeks from now is given by the equation:

[tex]b=85+(15+7)w[/tex]

To find out after how many weeks from now we will have $210, substitute 210 for b and solve for w:

[tex]210=85+(15+7)w[/tex]

Subtract 85 from both sides:

[tex]125=(15+7)w[/tex]

Add within the parentheses:

[tex]125=22w[/tex]

Divide both sides by 22:

[tex]w=125/22\approx5.68\approx6[/tex]

In other words, we will have $210 after approximately 6 weeks.

Identify each polynomial as either a monomial binomial or trinomial. Then state the degree and leading coefficient.

1) 4x^5 + 2
Name?
Degree?
Leading Coefficient?

2) - 4x + 7x^3-11
Name?
Degree?
Leading Coefficient?

3) 18x^5y^3z
Name?
Degree?
Leading Coefficient?​

Answers

Answer with explanation:

Monomial  = Polynomial with one term. Binomial   = Polynomial with two terms.Trinomial   = Polynomial with  three terms.Degree - highest power of variableLeading coefficient - Coefficient of the variable or variables with highest power.

[tex]1)\ \ 4x^5 + 2[/tex]

Name = Binomial   (as it has two terms)

Degree= 5     (power of x)

Leading Coefficient = 4   (coefficient of [tex]x^5[/tex])

[tex]2)\ \ - 4x + 7x^3-11[/tex]

Name = trinomial  (as it has 3 terms)

Degree = 3   (highest power of x)

Leading Coefficien= 7    ( coefficient of  [tex]x^3[/tex])

[tex]3)\ \ 18x^5y^3z[/tex]

Name= Monomial  (as it has 1 term)

Degree= 5+3+1= 9    [Addition of power of all variables]

Leading Coefficient = 18

Solve. 10. On weekdays, Kiki walks 2 miles in the morning and I mile in the evening. On Saturdays, she walks 4 miles. Place parentheses in the expression to represent the number of miles Kiki walks each week. 5x 2 + 1 + 4 USING GROUPING SYMBOLS (C)​

Answers

Answer:

The parenthesis should be placed as shown:

5 x (2+1) + 4

Step-by-step explanation:

What Kiki walks every week day is : 2 miles + 1 mile = (2+1)

since this is done 5 times per week (on weekdays) to obtain the total walked on weekdays, you multiply this by 5: 5 x (2+1)

and we need to add to this what Kiki walks on Saturdays (4 miles){

5 x (2+1) + 4

Perpendicular to y = 6x + 2; passing through the point (3,5).

Answers

Answer:

Step-by-step explanation:

y = 6x + 2

Slope = 6

A line perpendicular to this would have a negative reciprocal slope = [tex]-\frac{1}{6}[/tex]

To solve for the y-intercept, plug the coordinates given into the question.

y = mx + b

5 =[tex]-\frac{1}{6}[/tex] (3) + b

5 = [tex]-\frac{3}{6}[/tex] + b

5 = [tex]-\frac{1}{2}[/tex] + b

b = 5 + [tex]\frac{1}{2}[/tex]

b = [tex]\frac{11}{2}[/tex] or 5 [tex]\frac{1}{2}[/tex]

So, your new slope-intercept line equation is

y = [tex]-\frac{1}{6}[/tex]x + 5 [tex]\frac{1}{2}[/tex]

I would really appreciate it if you would please mark me brainliest!

Have a blessed day!

If y varies inversely as x, and y = 6 when x = 24, find x when y = 18

Answers

Answer:

x = 8

Step-by-step explanation:

Standard form for inverse variation:

y = k/x

We now use the given information to find k.

y = 6 when x = 24

6 = k/24

k = 6 * 24

k = 144

The equation for this inverse relation is

y = 144/x

For y = 18, we get

18 = 144/x

18x = 144

x = 144/18

x = 8

Answer:

x = 8

Step-by-step explanation:

To find the value of x when y = 18 we must first find the relationship between them.

The statement

y varies inversely as x is written as

[tex]y \: \: \alpha \: \: \frac{k}{x} [/tex]

where k is the constant of proportionality

From the question when

y = 6

x = 24

Substitute the values into the above equation

That's

[tex]6 = \frac{k}{24} [/tex]

Cross multiply

That's

k = 24(6)

k = 144

So the formula for the variation is

[tex]y = \frac{144}{x} [/tex]

When

y = 18

[tex]18 = \frac{144}{x} [/tex]

Cross multiply

18x = 144

Divide both sides by 18

x = 8

Hope this helps you

How many dots are there at t minutes? Solve the problems by your preferred method. Your
solution should indicate how many dots will be in the pattern at 3 minutes, 100 minutes,
and t minutes. Be sure to show how your solution relates to the picture and how you
arrived at your solution.



Answers

Answer:

The image to the question is missing, but I found a matching image, which is attached to this solution

Answer:

3 minutes = 13 dots

100 minutes = 401 dots

t minutes = 4(t) + 1 dots

Step-by-step explanation:

From the image, the following can be noticed:

time (Mins)       dots

0                          1

1                           5

2                          9

The pattern gotten from this progression is that, if the time is multiplied by 4, and the result added to one, the result will be the number of dots.

hence, when the time is 0 minutes:

0 × 4 = 0

0 + 1 = 1 ( 1 dot)

when the time is 1 minute

1 × 4 = 4

4 + 1 = 5 (5 dots)

when the time is 2 minutes

2 × 4 = 8

8 + 1 = 9 ( 9 dots)

Therefore,

when the time = 3 minutes

3 × 4 = 12

12 + 1 = 13 dots

at 100 minutes:

100 × 4 = 400

400 + 1 = 401 dots

at t miutes

t × 4 = 4t

4t + 1 = number of dots

Therefore number of dots at t minutes = 4(t) + 1

Find The area of each square. Input each area then click them

Answers

Answer:

see below

Step-by-step explanation:

Area 1 = 3 x 3 = 9 m²

Area 2 = 4 x 4 = 16 m²

Area 3 = 5 x 5 = 25 m²

The areas are 16 unit², 9 unit² and 25 unit² respectively.

What is Surface Area?

The area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. Square units are used to measure it as well.

As per the given diagram:

We are given 3 squares, and we have to find out the area of each square.

The area of a square is given by a², where a is the length of the side of the square.

For area of the square with length of the side, 4 units.

A = (4)² unit² = 16 unit²

For area of the square with length of the side, 3 units.

A = (3)² unit² = 9 unit²

For area of the square with length of the side, 5 units.

A = (5)² unit² = 25 unit²

The areas are 16 unit², 9 unit² and 25 unit² respectively.

Hence, The areas are 16 unit², 9 unit² and 25 unit² respectively.

To learn more about surface area, click:

brainly.com/question/29298005

#SPJ3

Caren held 260 of the shares for herself and sold the rest in equal amounts to six investors. How many shares does each investor own? If the business fails and leaves $65,000 in debt, for how much would each investor be liable

Answers

Answer:

40 shares each and $3,000 each

Step-by-step explanation:

The computation is shown below:

For the number of shares

Since there are total of 500 shares out of which 260 shares are held by Caren so the remaining shares left is

= 500 shares - 260 shares

= 240 shares

And, there are 6 investors

So the number of shares owned by each investor is

[tex]= \frac{240}{6}[/tex]

= 40 shares

Now the value of the shares held by each inventory is

[tex]= 40 shares \times \$75[/tex]

= $3,000

Total debt is $65,000

So, the liability per share is

[tex]= \frac{\$65,000}{500}[/tex]

= $130

And each investor holds 40 shares

So, each investor is liable for

[tex]= \$130 \times 40\ shares[/tex]

= $5,200

As we can see that the value of the shares is less than the amount liable by each investor

So each investor is liable for $3,000

And, the liability of Caren is

[tex]= 260\ shares \times \$75[/tex]

= $19,500

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