Mathematics High School

Which is the value of this expression when a=5 and k=-2 (3^2a^-2/3a^-1)^k

Answers

Answer 1

Answer:

Step-by-step explanation:

so by the power of a power rule we know that when you raise a power to another power you have to multiply the powers.

so i my oponion it would be 3 to the 10th* -2/15*-1= 10 times 2/15*-2

which in my oponion should be 3 to the negative 4/15

Related Questions


Noah wrote that 6 + 6 = 12. Then he wrote that 6 + 6 - n = 12-n. Select the phrases that make the statement true

Answers

Answer:

6 +6 =12

Step-by-step explanation:

it is telling you that the statement is true because the next equation says 6 +6 -n and the first equation helps you know the answer is true because you know that n is being taken away from the answer which is 12.

hope that helps and makes sense

The equations are balanced because Noah subtracted the same number on each side of the origin.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Equation property: If a number is subtracted, added, multiplied, or divide into both sides of the equation, then the equation remains balanced.

Noah wrote that 6 + 6 = 12.

Then Noah subtracted n from both sides of the equation. Then the equation will be

Then he wrote that 6 + 6 - n = 12-n.

The equations are balanced because Noah subtracted the same number on each side of the origin.

The question was incomplete, but the complete question is attached below.

More about the Algebra link is given below.

https://brainly.com/question/953809

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MODELING REAL LIFE The table shows the profit y for recycling x pounds of aluminum. Find the profit for recycling 75 pounds of aluminum. Aluminum (lb), x 10 20 30 40 Profit, y $4.50 $9.00 $13.50 $18.00​

Answers

Answer: 33.75

Step-by-step explanation:

It’s right

There is a profit of $33.75 for recycling 75 pounds of aluminum.

What is Function?

A function is a relation from a set to another set such that element in the first set only maps to one element in the other set.

A function f from a set A to a set B can be represented as f : A → B

We have,

Profit for recycling 10 lb Aluminum = 10/10 × 4.5 = 4.50

Profit for recycling 20 lb Aluminum = 20/10 × 4.5 = 9.00

and so on

Therefore, we can write this as a function.

f(x) = [tex]\frac{x}{10}[/tex] × 4.5

We have to find the profit for recycling 75 pounds of aluminum.

f(75) =  [tex]\frac{75}{10}[/tex] × 4.5

       = 7.5 × 4.5

       = 33.75

Hence the profit for recycling 75 pounds of aluminum is $33.75.

To learn more about Functions, click on the link given below :

https://brainly.com/question/18154364

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Write an equation of the line that passes through the point (3,2) and is
PARALLEL to the graph of y=3x-2*

Answers

Answer:

y = 3x - 7

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

What is the value of y=4x−2 when x=3? When x=3, y=

Answers

The answer to you question is y=10

Cala decides to throw a coin 50 times. She says "I
will get 25 heads and 25 tails". Explain why she
could be wrong.

Answers

because she won’t get heads or tails an even amount. she might get tails 40 times and head 10 times. it wont be even

Answer:

just because it is a 50 percent chance to land heads or tails does not mean that the coin will hand on each side half of the time

should i get a normal switch because it has more features or switch lite because its cheaper?

Answers

Answer:

i have the regular switch but you should get the regular one because it has more features

Step-by-step explanation:

i think you should get the one thats best for you but i have the regular one but get the one thats best for you

You have recently taken out a loan for a new home. You place 10% down and finance the remaining balance. As part of the closing cost, you are required to pay 2.5 points. Determine the amount of the loan prior to the addition of the 2.5 points to the loan if the final loan amount was for $151,625. Round your answer to the nearest cent.

a.
$149,384.24
c.
$147,926.83
b.
$148,651.96
d.
$147,208.74

Answers

Answer:

C. $147,926.83

Step-by-step explanation:

I REALLY NEED HELP!! PLEASE I NEED HELP WITH THE RESPONSES!

Answers

Answer:

Step-by-step explanation:

The area is equal to the length mutiply to the width.

work out the value of x :)

Answers

Answer:

x=67.5

Step-by-step explanation:

A full circle is 360°, and the right angle is 90°. The rest of the angle is 270°, or 4x (from 3x+x).

4x = 270

x=67.5

What is the equation of the line through (−2, −2) and (4, −5)?

Answers

Answer:

Step-by-step explanation:

(-5 + 2)/(4 + 2) = -3/6 = -1/2

y + 2 = -1/2(x + 2)

y + 2 = -1/2x - 1

y = -1/2x - 3

Answer: y= -1/2x -3

Step-by-step explanation: you just have to do -5- (-2) over 4-(-2) when u divide these two you should get the slope. When you get the slope pick one of the coordinates in your questions and plug them in as Mx + b form.

I don't understand how to do this,
6x + 6/6 > 1/3x + 2

Answers

Answer:

X> 3/17

Step-by-step explanation:

6x+ 6/6 > 1/3x + 2

solve for x

x/4= 25

quick

Answers

Answer:

x=100

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

x divide 4 equal to 25

4 across the equal and multiple with 25 it willbe 100

One student solved the inequality −4 > x/-7 and got 28 28. Are they both correct? Explain

Answers

Answer: solutions are the same, just written differently, inequality sign is reversed when multiplying by a negative. Yes, both students are correct.Jul 8, 2018

Step-by-step explanation:

h + 14.8 = −14.8 solve for h

Answers

Answer:

h= -29.6

Step-by-step explanation:

trust me!!

Answer:

The answer is h= -29.6

also if you click the image it will show you how to solve it I hope the image helps.

Mary compares the heights of two trees. Their heights are shown. Write and solve an equation to find the height h of the taller tree.

Answers

45+12= the height of the taller tree

Answer:

h= 57

Step-by-step explanation:

h-12=45

+12 +12

    h=57

1/4 (4 + x) = 4/3 what is x

Answers

Answer:

i think x = 4/3

Step-by-step explanation:

Answer:

4 I am not sure i don't know maybe ask your mom or dad I am not sure.

Step-by-step explanation:

If f (x) = -6x -1 and, g (x)=x^3, what is (f º g)(x)?

Plz Help

Answers

Answer:

-6x³ -1

Step-by-step explanation:

Which of these relations is a function?​

Answers

Answer:

top right

Step-by-step explanation:

The one on the rope that is not a circle

Help again again thank you

Answers

I think the answer is B

If SU and VX are parallel lines and mUTR = 115°, what is mSTW?

Answers

Answer:

m STW = 115°

Step-by-step explanation:

here, SU || VX

m STW = m UTR

( vertical opposite angles )

Hence, STW = 115°

(1,3),(2,6),(3,9),(4,12) is the relation a function

Answers

Yes. It passes the vertical line test, and each input has only one output.

The perimeter of a square is 60cm. How long is one side of the square?

Answers

Answer:

15

Step-by-step explanation:

60/4=15

Answer:

15 cm

Step-by-step explanation:

since all sides combined are 60.

take 60 and divide it by 4

60÷4

which equals 15

60÷4=15

Joy drank 2 3 liter of water Monday before going jogging. She drank 5 7 liter of water after her jog. How much water did Joy drink altogether? Write your answer as a mixed number.

Answers

Answer: 1 ⁸/₂₁ litres

Step-by-step explanation:

First find a common multiple to enable you add them up:

= 21

21 will be the denominator.

Multiply each numerator by the number you get when you divide 21 by the denominator.

= 21/3 = 7

= 7 * 2 = 14

= 21/7 = 3

= 3 * 5

= 15

[tex]= \frac{14 + 15}{21} \\\\= \frac{29}{21}[/tex]

[tex]= 1\frac{8}{21}[/tex] litres

Solve the system of equations below by elimination. -2x-4y=-4 -x+7y=-20

Answers

Answer:

67

Step-by-step explanation:

At the beginning of a business day a banks vault held 575,900. by the end of the day 3.5 x 10 to the 3rd power was added. how much money did the banks vault hold at the end of the day. Write your anwer in standard form​

Answers

Answer:

3.5*10^3=3,500

3,500+ 575,900=579,400

Step-by-step explanation:

3(2f + 4) = 2(3f - 6)

Answers

Answer:

I would say no solution

Step-by-step explanation:

There are no values of the variable  that make the equation true.

Answer:

no solution

Step-by-step explanation:

0=-24 at the end, which leads to no solution because 0 does not equal -24

HELPPPPP - this a grade due today and i need help

Answers

Answer: A-True B-False C-True D-True E-False

Step-by-step explanation:

The probability of picking a blue marble out of a bag of 50 marbles is 3\25. How many marbles I the bag are not blue?

Answers

Answer:

44

Step-by-step explanation:

Answer:

44

Step-by-step explanation: If per 25 less only 3 were blue then unless that and get 6 total blue marbles out of 50 total  

HELP I’LL GIVE BRAINIEST

Answers

3 , 2 , 1 ,4
Explaining:

Answer:

1 = Definition of a parallelogram

2 = Alternate interior angle theorem

3 = Angle addition postulate

4 = Substitution

i neeed help plsssss! 10 points to whoever gets it right lol

Answers

Answer:

C.

Step-by-step explanation:

Pretty sure the answer is -28 if not it is 28 but pretty sure its the negative one

Answer:

C. (third)

I am to lazy to explain:(

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