Which expression is equivalent to (7x^2)(3x^-4)
A. 21X ^-8
B. 21X^2
C. 21X^-6
D. 21X ^-2

Answers

Answer 1

Answer:

the answer is b

Step-by-step explanation:

heres why:

(7x^2)(3x^-4)

7x3=21x

21/x^4

21/x²


Related Questions

Simplify the given expression. 2(-36-3i)+(5+2i)(12-2i)

Answers

Answer:

-8+8i

Step-by-step explanation:

(-72-6i) + (60-10i+24i-4i^2)

(-72-6i) + (60+14i+4)

-72+64+8i

-8+8i

Find the amount to be paid at the end of eight years that is equivalent to a payment of $400 now and a payment of $300 at the end of four years
(a) if 6% simple interest is earned from the date each payment is made and use a comparison date of right now.
(b) if 6% simple interest is earned from the date each payment is made and use a comparison date of eight years from now.
(c) Explain why the fact you get different answers in parts (a) and (b) does not contradict the fact that equations of value at different times are equiv- alent equations.
(d) Repeat parts (a) and (b) except replace "simple interest" with "compound interest."

Answers

Answer:

A) $964

B) $651.35

C)  The difference in value for part a and part b is due to time factor and the accumulated interest hence it is better to pay $651.35 right now than to pay $964 when you pay $400 now and $300 in four years time

D)  $1016.28 ,  $637.63

Step-by-step explanation:

lets assume the amount to be paid in eight years that is equivalent to payment of $400 now and a payment of $300 at the end of four ( 4 ) years ( FV )

a) since a 6% interest is earned each day of every payment

will use this formula : S = P( 1 + rt )

therefore  $400 paid today will a simple interest of = 400 * 0.06 * 8 = $192

$300 paid at the end of four years will earn a simple interest of = 300*0.06*4 = $72

hence FV = $ ( 400 + 192 ) + $ ( 300 + 72 ) = $964

b) when compared with eight years from now

PV = [tex]\frac{FV}{1+rt}[/tex]  = ($964) / ( 1 + (0.06*8) = $651.35

C) The difference in value for part a and part b is due to time factor and the accumulated interest hence it is better to pay $651.35 right now than to pay $964 when you pay $400 now and $300 in four years time

D) Repeating parts (a) and (b) using compound interest

using the formula : S = P( 1 + r )^t

therefore $400 paid today will have a compound interest of

= 400 ( 1.06)^8 = $637.54

$300 paid at the end of four years will earn a compound interest of

= 300 ( 1.06 ) ^4 = $378.74

hence FV = 637.54 + 378.74 = $1016.28

when compared with eight years from now

= [tex]\frac{FV}{(1+r)^t}[/tex]  = ( 1016.28 ) / ( 1.06 ) ^8    = $637.63

someone knows the answer to that question?​

Answers

i cant read itStep-by-step explanation:

um no i can’t read that sorry

Find a​ point-slope equation of the line having the given slope and containing the given point.
m=−6​; ​(6​,4​)

Answers

Answer:

[tex]\boxed {y - 4 = -6(x - 6)}[/tex]

Step-by-step explanation:

Since you already have the given slope and the given point, use the Point-Slope Formula to make it a Point-Slope Form:

[tex]y - y_{1} = m(x - x_{1})[/tex]

Slope: [tex]m[/tex]

First Point: [tex](x_{1}, y_{1})[/tex]

-Substitute both the given slope and the given point:

Slope: [tex]-6[/tex]

First Point: [tex](6,4)[/tex]

[tex]\boxed {y - 4 = -6(x - 6)}[/tex] (Substituted in Point-Slope Form)

Answer:

y-4 = -6(x-6)

Step-by-step explanation:

Pre-SolvingGiven

We are given that a line has a slope of -6 and a point of (6, 4).

We want to find the equation of this line in point-slope form.

Formulas

Point-slope form is given as [tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1, y_1)[/tex] is a point.

Solving

Substitute the value of m (which is -6) into the formula for point-slope form.

[tex]y-y_1=-6(x-x_1)[/tex]

Now, substitute 6 and 4 as [tex]x_1[/tex] and [tex]y_1[/tex] respectively.

[tex]y-4=-6(x-6)[/tex]

which of the ordered pairs is a solution of 2x-5y <8
(2,-5)
(1,-2)
(-2,-5)
(0,-3)
(5,0)

Answers

I think it’s (-2,-5)

How do you do this question?

Answers

Answer:

½√2

Step-by-step explanation:

∑ₙ₌₀°° (-1)ⁿ π²ⁿ / (4²ⁿ (2n)!)

∑ₙ₌₀°° (-1)ⁿ (π/4)²ⁿ / (2n)!

Using the Taylor expansion for cos x:

cos (π/4)

½√2


Use additive inverses and their properties to find the equivalent expressions.
6-(-3)
-6+(-3)
-6-(-3)
OOO
- 6+3
-6-3
6+(-3)
6-3
6+3

Answers

Answer:

-6+(-3) boom that the answer

helpppp! I dont know what to do. Im not very good with slopes LOL.

Answers

Answer:

A= 14

B= -6

C= 2/5

D= 4/3

E= -2

F= 12

Step-by-step explanation:

18x-3y=21 put in to slope intercept form

Answers

Answer:

the answ

Step-by-step explanation:

It would be 18x-3y=21 then it would be -3y=21-18x than it would be y=21/-3-18x/-3 then the answer would be y=-7+6x than the answer would be y=6x-7

y = 6x - 7

18x - 3y = 21 (add 3y)
18x = 3y + 21 (subtract 21)
18x - 21 = 3y (rearrange so y is on the left and divide by 3)
y = 6x - 7

he triangles shown are congruent by the SSS congruence theorem.

3 rigid transformations are shown. Triangle A B C is first rotated about point C to form triangle A prime B prime C. Triangle A prime B prime C is then shifted down to form triangle A double-prime B double-prime C prime. Triangle A double-prime B double-prime C prime is reflected across A double-prime B double-prime to form triangle A double-prime B double-prime C double-prime

The diagram shows the sequence of three rigid transformations used to map TriangleABC onto TriangleA"B"C". What is the sequence of the transformations?

rotation, then reflection, then translation
rotation, then translation, then reflection
translation, then reflection, then rotation
translation, then rotation, then reflection

Answers

Answer:

the answer is b

Step-by-step explanation:

i just took the test

Answer:

The answer is b

Step-by-step explanation:

edge 2020

Solve for a when x is 12
X=
(1 + a)
(1 – a)

Answers

Answer:

so i checked on many apps cause im kinda stupid and didnt know and they all said a=11/13 but you could wait for sum1 else to answer

Step-by-step explanation:

Which fraction is equivalent to 2/3 explain

Answers

Answer:

4/6, 8/12, 20/30

Step-by-step explanation:

They are equivalent to 2/3, because they can all be simplified to 2/3.

For example, 2 x 2 = 4 and 2 x 3 = 6; this gives me 4/6. I multiplied 2/3 by 2/2.

SO it can also be 2/3 = 4/6= 6/9 = 8/12 = 10/15 = 12/15 = 15/18 = 18/21 = 21/24 etc.

~hope it's right

4/6 is equivalent to 2/3
If you times both numbers by 2 you get the answer
2/3
x/x
2/2
——-
4/6

Triangle ABC is transformed to triangle A′B′C′, as shown below:
Which equation shows the correct relationship between the measures of the angles of the two triangles? (1 point)

a
The measure of angle ABC = The measure of angle A prime B prime C prime

b
The measure of angle ABC = The measure of angle B prime C prime A

c
The measure of angle BCA = The measure of angle A prime B prime C prime

d
The measure of angle BCA = The measure of angle C prime A prime B prime

Answers

Answer:

d one i think

hope it helps

the sum of triangle is 180 degree

Jessica is planning a trip to South Africa. The following table shows some of her planned expenses for this trip, and
whether these expenses are in US dollars ($) or South African rands (R).
Item
Cost
Currency
R
Guide book
Walking shoes
Passport
Car rental
Plane ticket
Hotel reservation
216.41
702.33
71.75
996.78
3,741.85
138.10
R
$
R
R
$
If the exchange rate of US dollars to South African rands is 1:7.4094, what is the current total of Jessica's budget, in US
dollars? Round all currencies to two decimal places.
a $763.54
b. $791.86
$973.39
d. $1.001.71
C.

Answers

Answer:

C $973.39

Step-by-step explanation:

the answer is C on e2020

Answer:

✅ C. $973.39

⬇⬇⬇

Please answer this correctly without making mistakes

Answers

Answer:

$10

Step-by-step explanation:

there are 2000 pounds in a ton

so 3*2000=6000

6000/600=10

hope this helps :3

if it did pls mark brainliest

Answer:

3 tons of cement costs $10 per pound.

Step-by-step explanation:

1 ton equals 2000 pounds.

3 tons = 6000 pounds

To calculate, we must divide the weight in pounds by the cost.

6000/600 = 10

I hope this was helpful to you! If it was, please consider rating, pressing thanks, and marking my answer Brainliest. It would help a lot. Have a fantastic day! :)

A football team has attempted 6 running plays. The change in field position resulting from each play is shown in the table.

Answers

Answer:

what is the question

Step-by-step explanation:

Can we see the table??

If a function is defined by the formula y=1/2x + 3 and its domain is given by the set {-4,0,8}, then which of the following sets gives the function's range?

Answers

Answer:

y = {1, 3, 7}

Step-by-step explanation:

Given

y = ½x + 3

Domain: {-4, 0, 8}

Required

Determine the range of the function

To do this, we simply substitute each value of the domain in the given expression

We start with the first

Substitute -4 for x in y = ½x + 3

y = ½ * -4 + 3

y = -2 + 3

y = 1

Then 0

Substitute 0 for x in y = ½x + 3

y = ½ * 0 + 3

y = 0 + 3

y = 3

Lastly, 8

Substitute 8 for x in y = ½x + 3

y = ½ * 8 + 3

y = 4 + 3

y = 7

Hence, the range of the function is:

y = {1, 3, 7}

Answer:1,3,7

Step-by-step explanation:

Q4: Write the equation in slope-intercept form of the line that is perpendicular to
the graph of each equation and passes through the given point.
y = -5x + 1; (2, -1)

Answers

Answer:

5y  = x + 11

Step-by-step explanation:

Given parameters:

  Equation of the line ;

           y  = -5x + 1

  Coordinates = (2, -1)

Find the equation of a line perpendicular;

Solution:

A line perpendicular to  y  = -5x + 1  will have slope that is a negative inverse of the given one.

Equation of a straight line is expressed as;

           y  = mx + c

y and x are the coordinates

m is the slope

c is the y-intercept

        So, the slope of the new line perpendicular is [tex]\frac{1}{5}[/tex] ;

Now let us find the y-intercept of the new line;

   x = -1 and y = 2

      2  = [tex]\frac{1}{5}[/tex] x (-1) + c

           c  = 2 + [tex]\frac{1}{5}[/tex]   = [tex]\frac{11}{5}[/tex]  

The equation of the new line is;

          y  =  [tex]\frac{1}{5}[/tex]x +  [tex]\frac{11}{5}[/tex]  

or multiply through by 5;

        5y  = x + 11

PLEASE HELP!!

The graph shows the cost C in dollars of W points of blueberries. Select ALL the true statements.

A. 1 pound of blueberries cost $2.75

B. 2.75 pounds of blueberries cost $1

C. 5 pounds of blueberries cost $15.30

D. 12 pounds of blueberries cost $33

E. The point (3,9) is on the graph of the proportional relationship

Answers

Answer:

A and D

Step-by-step explanation:

What is the slope m in the equation y= -2x + 5

Answers

Answer:

Answer -2/1

Step-by-step explanation:Slope is the number in front of x

The correct answer is....... the slope is 0

• Which factors do 3 and 9 have in common? Choose ALL that apply.
1
2
3
4
5
6
7
8
9
10

Answers

Answer:

3 and 9 both have factors 1 and 3 in common.

Explanation:

A factor is a number that divides into another number exactly and without leaving a remainder. For instance, factors of 15 are 3 and 5, because 3×5 = 15. Some numbers have more than one factorization (more than one way of being factored). For example, 12 can be factored as 1×12, 2×6, or 3×4.

I hope this was helpful to you! If it was, please consider rating, pressing thanks, and marking my answer as 'Brainliest.' Have a wonderful day.

3 and 9 are the only ones that are in common for both 3 and 9

Three letters are randomly chosen from PROBABILITY. What is the probability that at least one of the letters is B?

Answers

Answer:

2/11

Step-by-step explanation:

thats the probability

Answer:

2/11

Step-by-step explanation:

Susie has 26 baskets of apples. Each basket can hold 12 apples. Can Susie fit all her apples in her baskets?

Answers

Answer: Yes, Susie can fit all her apples in her baskets.

Step-by-step explanation: If she has 26 baskets filled of apples and can hold 12 apples each, then she can fill 2 baskets with apples and have a remainder of 2 apples left.

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by __ the amount, or size, at time t is represented by __

Answers

1. A0 (small 0)
2.A0^ekt

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by  [tex]N=N_{0}[/tex]. and at time t is represented by [tex]N=N_{0}e^{kt}[/tex]

Let us consider that [tex]N_{0}[/tex]  is the initial amount and N is represent that amount after growth or decay in time t .

Model for exponential growth or decay is,

                                 [tex]N=N_{0}e^{kt}[/tex]

Amount at t=0 is,

                             [tex]N=N_{0}e^{k*0}=N_{0}[/tex]

Learn more:

https://brainly.com/question/12626186

Write the slope-intercept form of the equation of each line.

example:

m= ( answer )
b= (answer )
equation= (answer)

Answers

Answer:

1) 2/5

2) 2

3) 0,1

4)-2,0

5)-1

6)1,-2

7)1,0

8) 3,-1

5 x 4000 step by step for khan

Answers

Answer:

Step-by-step explanation:

5×4000

=20,000 answer

Transformations of functions PLS HELP

Answers

Answer:

B. y = f(x-4)

Step-by-step explanation:

What is the slope of a line that passes through the points (0, 1) and (2, 6)?

please answer fast as can

Answers

Answer:

[tex]\boxed {\boxed {\sf m=\frac{5}{2}}}[/tex]

Step-by-step explanation:

The slope formula is the change in y over the change in x, or:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Where (x₁,y₁) and (x₂, y₂) are the points the line passes through.

The points given are (0,1) and (2,6). Therefore:

[tex]x_1=0\\y_1=1\\x_2=2\\y_2=6[/tex]

Substitute the values into the formula.

[tex]m=\frac{6-1}{2-0}[/tex]

Solve the numerator.

[tex]m=\frac{5}{2-0}[/tex]

Solve the denominator.

[tex]m=\frac{5}{2}[/tex]

This fraction can not be simplified further, so it is our answer.

The slope of the line is 5/2

Answer:

m=5/2

Step-by-step explanation:

We know that,

[tex]Slope\ (m)=\frac{Rise}{Run}\\Slope\ (m)=\frac{y_2-y_1}{x_2-x_1} \\As here,\\x_1=0, x_2=2\\y_1=1, y_2=6\\Hence,\\Slope(m)\ of\ the\ following\ line\ =\frac{6-1}{2} =2.5[/tex]

The function f(x) = -3/4x^2 +9/2x models, in feet, the shape of a doorway arch on a historic building. How high is the
opening of the arch?
6.75 feet
3 feet
6 feet
7.25 feet

Answers

Is has to be 7.25 feet.

One-third of a number is 12.
Work out one-half of the number.​

Answers

Answer:

18

Step-by-step explanation:

If 12 is one-third of a number, to find the number, we have to multiply 12x3, which equals 36. To find one-half of 36, divide 36/2, which equals 18.

Hope this helped you!! Have a wonderful day C:

The fraction of one-half of the number such that one-third of it is 12 will be 18.

What is a fraction?

In such a fraction, the value that appears above the horizontal line is referred to as the numerator.

In another word, the fraction is the division of the two numbers but the division is not wholly complete.

Suppose that number is x.

One-third = (1/3)x

It is equal to 12 so,

(1/3)x = 12

x = 36

Now one-half of 36 will be (1/2)36 = 18

Hence "The fraction of one-half of the number such that one-third of it is 12 will be 18".

For more about fractions,

https://brainly.com/question/10354322

#SPJ2

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