Mathematics College

if
[tex]a - \frac{1}{a} = 9 find \: the \: value \: of \: {a}^{3} - \frac{1}{ {a}^{3} } [/tex]
​

Answers

Answer 1
1111 111111111111111 44444444444444444444 11111111111111111111111

Related Questions

what is the decimal equivalent to 5/7

Answers

Answer:

0.714286

Step-by-step explanation:

yes

PLEASE HELP 8 ml of a 80% acid solution was mixed with 12 ml of a 20% acid solution. What is the percentage of acid in the new solution?

Answers

Answer:

44%

Step-by-step explanation:

So you have 2 bottles. One bottle is 8ml and is 80% acid. the other is 12 ml and is 20% acid.

This means there's 6.4 ml of acid in bottle 1(8*0.8) and 2.4 ml of acid in the other one(12*0.2).

The total amount of liquid is 8+12 = 20

The total amount of acid is 6.4+2.4 = 8.8

Percentage of acid in the new solution is 8.8/20 = 0.44 = 44%

Help pleasee needed

Answers

Answer:

Yes

AA similarity

DCE

Step-by-step explanation:

plz give thx and brainliest!

As per MBTI personality people work
based on hunches and feelings use
their imagination and get the main
idea while missing some of the facts
are
Select one:
a. Thinking
b. Sensing
c. Introversion
d. Intuition

= Intuition ​

Answers

Step-by-step explanation:

As per MBTI personality people work

based on hunches and feelings use

their imagination and get the main

idea while missing some of the facts

are intuition

Which of the following equations was used to graph the line shown pls help

Answers

The answer is A. y=2x

PLEASE HELP!!!! WILL GIVE POINTS

Answers

Answer:

3.0

Step-by-step explanation:

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite.
x+y = 6
x - y = 0
I’ve been stuck for almost a hour pls help . if not it’s cool

Answers

Point form (3,3)

x=3 , y=3

yoooo i need help lmk the answers​

Answers

well the answer is 6 soo
The answer to your question is 6

Find the circumference of a circle with the radius 13.4 feet. Round your answer to two decimal places.

Answers

Step-by-step explanation:

circumference = 2πr

π = 3.14

r = 13.4

2 × 3.14 × 13.4 = ¯\_(ツ)_/¯

If the exchange rate is 1 Euro to .80 pounds, how many pounds would you spend to purchase something that costs 30 Euros

Answers

Step-by-step explanation:

If the exchange rate is 1 Euro to 0.80 pounds

So,

30 Euro=0.8×30=24.0=24 pounds.

so,

24 pounds would you spend to purchase something that costs 30 Euros

The area of Neil's sqaure bedroom is 256 feet2. what is the length of any sidewall in his bedroom

Answers

Answer: 64 ft for each wall in his bedroom..

Step-by-step explanation: 256 divide 4 = 64.

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!

Answers

1/8 y -1 +1 < -5+1
1/8 y < -4
8*(1/8y)< (-4)*8
Y < -32

What is the decimal equivalent of 1/18

Answers

The decimal equivalent of 1/18 is 0.125

0.125
Hope this helps!!!

3z - 3
when z = 7

pls respond asap

Answers

3 • 7=21-3=18 there urs answers

Need as soon as possible

Answers

Answer:  136 square feet

=======================================================

Explanation:

The front face is a triangle with base 6 and height 4.

The area is 0.5*base*height = 0.5*6*4 = 12 square feet

The back face is also 12 square feet since the front and back faces are identical triangles.

So far we have 12+12 = 24 square feet of surface area.

--------------------

The bottom face, that runs along the floor or ground, is a rectangle that is 6 ft by 7 ft. So we have 6*7 = 42 square feet of surface area here. This adds onto the 24 we found earlier to get 24+42 = 66 square feet so far.

To find the left and right upper faces, we'll need to find the length of the hypotenuse first. The 6 ft cuts in half to 3 ft. The right triangle on the left has side lengths of 4 ft and 3 ft as the two legs. Use the pythagorean theorem to find the hypotenuse is 5 ft. We have a 3-4-5 right triangle.

This means the upper left face is 5 ft by 7 ft leading to an area of 5*7 = 35 square feet. The same can be said about the upper right face.

So we add on 35+35 = 70 more square feet to the 66 we found earlier to get a grand total of 70+66 = 136 square feet of surface area.

Suppose that $2000 is invested at a rate of 2.6 %, compounded quarterly Assuming that no withdrawals are made the amount after 8 years

Answers

A = p(1+r/n)nt A = final amount p = principal = 2000 r = interest rate = .04 n = # times compounded pet year = 2 t = time in years = 7  A = 2000(1+.04/2)2(7) A = 2000(1.02)14 A= 2638.957HOPE IT HELPS.....

HELP PLEASE ASAP!!!!!

Answers

Answer:

1 1/2 cups of flour :))

Step-by-step explanation:

Answer:

2 5/8 cups ur welcome

you convert  1 3/4 to improper fraction so 7/4. then divide 7/4 by 2 which is 0.875. 0.875+7/4= 2.625 which is 2 2/3.

Ski rental at Swinter a mountain resort is $40, and S is the price of the lift ticket. Write an expression to show the cost you lift tickets without ski rental and three left tickets with ski rental. Simplify your expression

Answers

Answer:

100

Step-by-step explanation:

Answer:95.12

Step-by-step explanation:trust me

A figure is created by using four semicircles and a rectangle. which is closest to the area of the figure? ​

Answers

Step-by-step explanation:

area of rrctangle:

12×8= 96cm²

now if rectangle dissapears and then we "glue" what's left, we gonna get two circles

area of circle which gas diameter of 12cm( so radius will be 6cm)will be

πr²=36π≈113.04

another circles radius is 4cm,so area is:

16π≈50.25

sum of all areas: S≈96+113.04+50.25≈259.28cm2

ANSWER FAST PLS HAVE 5 MIN FOR THIS


Employees of a painting service paint the interior walls of homes and office buidings.
The following table shows the number of cons of point the employees use, and the
number of square feet they cover.
Cans of paint
3
Area painted (square feet) 375
1125 1500
Which equation describes the relationship between the number of cons of paint
used, and the number of square feet that are covered?
1
2
750
A
y = 375x + 375
B
y=+*
375
y = 50x + 325
D
y = 375x

Answers

Answer:

Y=375x

Step-by-step explanation:

thats the answer

Part B Write an expression based on Hayley’s method to find the total number of pieces of fruit.

Answers

Answer:

3x + 3y

Step-by-step explanation:

3x (x being the number of apples)

3y (y being the number of bananas)

You receive an inheritance of $15,500, and you place the full amount into a bank account. The bank pays a simple interest rate of 7.5% per year. How much interest have you earned after three years? Give your answer in dollars to the nearest dollar.

Answers

Answer:

348,750 dollars in 3 years

Step-by-step explanation:

   You inheritanced 15,500 dollars. You put that into a account which has a 7.5% interest rate for one year. 15,500 x 7.5 = 116,250 a year. now you want to know how much that'll be in 3 years multiply 116,250 x 3 = 248,750.

(I'm sorry if this is incorrect i tried doing the math correctly!)

Answer:

Step-by-step explanation:

I = P x r x t

p=15500

i=7.5% must change to decimal of 0.075

t= 3 (years)

In this case

I= 15,500 X 0.075 X 3=  3,487.5

(1, 162.5 x 3)= 3487.5

Solved to nearest dollar of 3,488

what is the point of this

Answers

Answer:

B and I are both coplanar

Step-by-step explanation:

SUPER EASY QUESTION!!! HOW SMART ARE YOU? Which number has a 3 with a value that is 100 times greater than the value of the 3 in 20.342? Here are the answer choices choose wisely : 36.25 108.173 423.06 or 307.18

Answers

Answer:

36.25 ez I’m big brain

Step-by-step explanation:

there are 8 playing cards in a bag. 2 of those cards are spades. what is the probability of picking a spade randomly from a bag?
answer as a simplified fraction in form a/b

Answers

Answer:

thanks for the points

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

If a is a positive integer such that a =
?
(-16) *(-16) * (-16) * (-16), what is the value of va

Answers

65536 is the Answer which is positive

4 pounds of grapes cost $11.52. what is the unit rate?

Answers

Answer: 2.88/1

Step-by-step explanation:

Help Fast Please!!!!!!!!

Answers

Answer:

answer is -8.4 if you add 3.6 and two it's 5.6 times 1.5 it will be -8.4

Answer:

2.4

Step-by-step explanation:

It should be 2.4 based on what I see here.  Distribute -1.5 into -3.6 + 2 to get 5.4 - 3.  You should get 2.4 as your answer in which it is the second option, the picture needs to be in standing position next time because it is upside down though but it can be flipped either way.

plz help me math work question in photo​

Answers

It’s b or a hope this helps

the answer is C.

the exponent of 10 is -2, so the decimal point will move to the left two spaces which makes .0254 mm

If the ratio between boys and girls is 3 to 2 if there are 12 boys how many girls are there

Answers

Answer:

the ratio is 12:8 boys to girls

Step-by-step explanation:

if the amount of boys is 12 then multiply the 3 by 4 and using distribution multiply the 2 by 4 as well to get 8 girls

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