EXERCISE 7.1
1. Which of the following numbers are not perfect cubes?
(1) 216
(ü) 128
(i) 1000
(v) 46656
(iv) 100

Answers

Answer 1

Answer:

216

Step-by-step explanation:

factors 216 and take common from them you can find

Answer 2

Answer:

You see this is a tricky question but its not that hard if you put your mind to it, but 128 and 100 aren't perfect cubes.


Related Questions

Name the point of concurrency shown. Please don’t answer if you don’t know it!

Answers

Answer:

the answer is it is c, centroid.

help please please help me on this​

Answers

Answer: It equal 6

Step-by-step explanation:

i need to know what 3x-2/3 equals

Answers

Answer: -2

(I hope this is what you meant)

Hope this helps!

Step-by-step explanation:

Solve this equation: 12−3(3x−5)=12(2x+1)

Answers

Answer:

x = -3/11

Step-by-step explanation:

First, distribute the -3 and 12 within the parenthesis

12 - 9x + 15 = 24x + 12

Now, combine like terms

3 - 9x = 24x + 12

Subtract 24x from both sides of the equation

3 - 33x = 12

Subtract 3 from both sides of the equation

- 33x = 9

Divide both sides by -33

x = -9/33

-9/33 can be simplified to -3/11, so the answer is

x = -3/11

I Hope That This Helps! :)

James is buying a pair of jeans that cost $39.99.If the price is discounted 40%,and the sales tax is 8%,what will James pay for the jeans?

Answers

Answer:

1.28

Step-by-step explanation:

plz mark brainlyest

Select the correct answer. Owen has enough materials to build up to 10 birdhouses in shop class. Each birdhouse needs 12 square feet of wood. The function W(b) = 12b represents the total amount of wood that Owen would need to build b birdhouses. What domain and range are reasonable for the function? A. D: 0 ≤ b ≤ 10 R: 12 ≤ W(b) ≤ 120 B. D: 10 ≤ b ≤ 12 R: 0 ≤ W(b) ≤ 120 C. D: 0 ≤ b ≤ 120 R: 0 ≤ W(b) ≤ 10 D. D: 0 ≤ b ≤ 10 R: 0 ≤ W(b) ≤ 120

Answers

Answer:

a

Step-by-step explanation:

a

A skydiver with an open parachute descends at a constant speed. The altitude of the skydiver changes by -144 feet in 6 seconds

Answers

Answer:

-24

Step-by-step explanation:

If you decend -144 feet in 6 seconds, by 10 to get what you descend in 60 seconds= -1440. Then divide -1440 by 60 to get -24 feet each second.

Answer:-24

Step-by-step explanation:

If you decend -144 feet in 6 seconds, by 10 to get what you descend in 60 seconds= -1440. Then divide -1440 by 60 to get -24 feet each second.

help me pleaseeeee :)

Answers

The first problem Levi solves is incorrect, because 5/4 is not equal to 20.

The second problem Levi solves is correct, because 1.5 x 10 is 15, which subtracting 8 is equal to 7.

The third problem Levi solves is correct, because 4 x 13 is 52 and plus 6 it is 58.

I hope this helps!
What he said lol ^^^

|9(1)
9(1) = 50
g(n) = 8 – g(n − 1)
g(2)
=
What’s g(2)

Answers

this is confusing

can someone exp;ain this

so can someone of u say the answer becoz I couldn't find the answer I am new here the question is given​

Answers

Answer: The first one is 9/49 and in decimal form it's 0.18367... the second one in fraction form is 16807/161051 and in decimal form is 0.10435824...

Step-by-step explanation: hope this helped

Plzz Answer
first to answer correctly will get brainliest

Answers

Answer: 1/8

Step-by-step explanation:

Multiply by the reciprocal which would be 1/2, so 1/4x1/2 would be 1/8

Answer:

1/8

Step-by-step explanation:

1/4*1/2=1/8

Since you are multiplying, you flip the second fraction. So 2/1 becomes 1/2.

What is the domain of the function in this table

Answers

The main fuction is mulitiply by 2 each 1 point

Step-by-step explanation:

Graph each linear equation that passes through the given pair of points. Use graph paper.
1. (2,2) and (4,5)
2. (0,1/2) and (2,3/2)
3. (-1,2) and (5,0)
4(-5,-3) and (-3,5)

Answers

Answer:

The easier way to solve this is to find the two points in the coordinate axis, and just draw a line that passes through the two points.

But let's be more complete:

Let's find the equations for each line:

A linear relationship can be written as:

y = a*x + b

where a is the slope and b is the y-axis intercept.

For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:

a = (y2 - y1)/(x2 - x1).

1) Here the points are (2,2) and (4,5)

then the slope is:

a = (5 - 2)/(4 - 2) = 3/2

y = (3/2)*x + b

And to find the value of b, we just replace the values of one of the points in the equation, in this case i will use (2, 2)

2 = (3/2)*2 + b

2 = 3 + b

2 - 3 = b

-1 = b

y = (3/2)*x - 1

2) Here the points are (0,1/2) and (2,3/2)

then the slope is:

a = (3/2 - 1/2)/(2 - 0) = 1/2

y = (1/2)*x + b

And to find the value of b, we just replace the values of one of the points in the equation, in this case i will use (0, 1/2)

1/2 = (1/2)*0 + b

1/2 = b

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

3) Here the points are (-1,2) and (5,0)

then the slope is:

a = (0 - 2)/(5 + 1) = -1/3

y = (-1/3)*x + b

And to find the value of b, we just replace the values of one of the points in the equation, in this case i will use (-1, 2)

2 = (-1/3)*-1 + b

2 = 1/3 + b

2 - 1/3 = b

5/3 = b

y = (-1/3)*x + 5/3

4) Here the points are (-5,-3) and (-3,5)

then the slope is:

a = (5 + 3)/(-3 + 5) = -4

y = -4*x + b

And to find the value of b, we just replace the values of one of the points in the equation, in this case i will use (-3, 5)

5 = -4*-3 + b

5 = 12 + b

5 - 12 = b

-7 = b

y = -4*x - 7

Now that we have all the equations, we can find the graphs.

where the colors are:

(4) green

(3) orange

(2) Blue

(1) Gray.

I WILL MARK BRAINLIEST
Which Linear function is represented by the graph?

•f(x)-2x +1
•f(x)= -1/2x +1
•f(x)= 1/2x + 1
•f(x)= 2x + 1​

Answers

Answer:

the second one

slope is negative go down one right 2

D'Andrea and Eden had a sit-up contest. D'Andrea did 176 sit-ups in 4 minutes. Eden did 215 sit-ups in 5 minutes. Which athlete did the most sit-ups per minute?

Answers

Answer:

Eden

Step-by-step explanation:

Answer:

it has D'Andrea

Step-by-step explanation:

Because here we are using direct variation and the formula is y=kx and k=y/x. I used k=y/x You divide 176 by 4 and you'll get 44 that's D'Andrea and the you divide 215 by 5 and you get 43 for Eden. you can see you does more sit up

Put the following equation of a line into slope-intercept form, simplifying all
fractions.
12x + 9y = -45

Answers

Answer:

y=[tex]-\frac{4}{3}[/tex]x -5

Step-by-step explanation:

9y=-12x-45

y=-12/9x-5

y= -4/3x-5

A train leaves LA at 2:00 pm and heads north at 50 mph. If the next train leaves the station three hours later and heads north at 60 mph, at what time will the second train catch up to the first train?

Answers

Answer:

https://brainly.com/question/6423861

Step-by-step explanation:

Use link and give me 5 stars and brainliest

-0.25 + 3 1/6 + 2 1/12
plz help me with this.

Answers

Answer:

5

Step-by-step explanation:

Answer:

the answer is 5

Step-by-step explanation:

La empresa Computec se dedica a la producción de calculadoras, donde el costo de producir cada una es de $120 y los costos fijos semanales son de $15000. Además, la empresa vende cada calculadora al precio de $20. ¿Cuántas calculadoras debe producir y vender la empresa para obtener una utilidad semanal de $16?

Answers

Answer:

Unidades a vender= 388

Step-by-step explanation:

Dada la siguiente información:

Costo variable unitario= $120

Costo fijo= $15,000

Precio de venta= $200

Utilidad deseada= $16,000 (supongo)

Para calcular el número de unidades a vender, tenemos que usar está formula:

Unidades a vender= (costo fijo +utilidad deseada) / contribucíon marginal

Unidades a vender= (15,000 + 16,000) / (200 - 120)

Unidades a vender= 388

(0.8x+15)(0.8x–15)+0.36

Answers

Step-by-step explanation:

0.64x + (-12)x + 12x -225 + 0.36= 0.64x - 225 + 0.36 =0.64x -224.64

PLZ help fast I need this I’ll give brainliest

Use the drop-down menus to complete each statement.
The equations x = 1 + 3t and y =-1 + 6t describe a line with a slope of
The equations x = 5 cost and y = 5 sint describe a
X2
A hyperbola with equation
.
= 1 can be parametrized similar to the circle and ellipse.
62
q?
if x = a sec t is one of the parmetric equations, the other will be y =

Answers

Answer:

1. 2

2.circle

3.b tan t

Step-by-step explanation:

The slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The equation x = 1 + 3t and y = -1 + 6t can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

In this case, m = 6, which is the slope of the line.

The equations x = 5 cos t and y = 5 sin t describe a circle.

These equations define the parametric form of a circle with a radius of 5 centered at the origin.

if x = a sec t is one of the parametric equations, the other will be y =b tan t

Hence, the slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

What will be the slope for (3,3) and (1,3)

Answers

The slope is 0/2 (undefined). Mark brainliest please

Write the equation for f(x)=x^2
But flipped over the x-axis, shifted 4 units down, and shifted 1 unit to the left.
Will give brainliest for best answer :) tysm! <3

Answers

Answer:

[tex]f^\prime(x)=-(x+1)^2-4[/tex]

Step-by-step explanation:

We have the function:

[tex]f(x)=x^2[/tex]

And we want to write its equation after being: 1) Flipped over the x-axis, 2) shifted 4 units down, and 3) shifted 1 unit to the left.

To denote a flip over the x-axis, we multiply the function by -1. Hence:

[tex]f^\prime(x)=-x^2[/tex]

Is our function flipped over the x-axis.

To shift n units vertically, we simply add n to our function.

Since we are going 4 units downwards, we will add -4 to our function. Hence:

[tex]f^\prime(x)=-x^2-4[/tex]

Finally, to shift n units horizontally, we substitute our variable [tex]x[/tex] for [tex](x-n)[/tex].

Since we are shifting 1 unit to the left, n=-1. Hence, we will substitute [tex]x[/tex] for [tex](x+1)[/tex]. Therefore:

[tex]f^\prime(x)=-(x+1)^2-4[/tex]

So, our final function is:

[tex]f^\prime(x)=-(x+1)^2-4[/tex]

If f(x) = 7, then x = ______ .

Answers

Answer:

x= -10

Step-by-step explanation:

Go to when y=7 and then find what point hits it. you'll find (-10, 7) hits that point. If you're not sure where x is, follow the point down the line until you reach the x axis to see where it lands

Answer:

Step-by-step explanation:

-9

WILL GIVE BRAINLIEST!!!! I just need the answer not a detailed explanation. Answer within 2 mins for brainliest.
Rewrite the expression with rational exponents as a radical expression by extending the properties of integer exponents. two to the three fourths power, all over two to the one half power
the eighth root of two to the third power
the square root of two to the three fourths power
the fourth root of two
the square root of two

Answers

Answer: ₄√2

Step-by-step explanation:

please help ASAP with answers(geometry)

a. Given ∠1 and ∠2 are corresponding angles, if m∠1=56°, then m∠2 =
°
b. Given ∠3 and ∠4 are vertical angles, if m∠3=56°, then m∠4 =
°
c. Given ∠5 and ∠6 are a linear pair, if m∠5=56°, then m∠6=
°
d. Given ∠7 and ∠8 are same side exterior angles, if m∠7=56°, then m∠8=
°

Answers

Answer:

a. 56

b. 56

c. 124

d.  56

Step-by-step explanation:

CJ earned a score of 75% on his math quiz each question on the quiz worth one points in CJ got 18 question correct how many questions were on the quiz

Answers

Answer: 24 questions

Step-by-step explanation:

Let the number of questions on the quiz be represented by x. This means that 75% of x equals 18. We need to calculate x. This will be:

75% × x = 18

75/100 × x = 18

0.75 × x = 18

0.75x = 18

x = 18/0.75

x = 24

The quiz has 24 questions.

PLEASE HELP ME. THIS IS DUE TODAY

The table shows the relationship between X and Y.

X | Y

3 | 163.5

6 | 327

11 | 599.5


Which equation models this relationship?

A. y = 53x

B. y = 53.5x

C. y = 54x

D. y = 54.5x


PLEASE ANSWER I NEED THIS THE ANSWER NOW

Answers

I think it’s b it only makes since

An equation which models the relationship between X and Y is

y = 54.5x

The correct answer is option (D) y = 54.5x

What is equation?

"A mathematical statement which contains an equal symbol between two algebraic expressions that have the same value."

From given data we can observe that,

163.5/3 = 54.5                           ...................(1)

327/6 = 54.5                              ...................(2)

599.5/11 = 54.5                          ...................(3)

From (1), (2) and (3),

y/x = 54.5

⇒ y = (54.5)x

Therefore, an equation which models the relationship between X and Y is y = 54.5x

The correct answer is option (D).

Can you guys pls help me. I'll give brainliest

Answers

B is correct answer

A cheetah runs at an average speed of 50 mph between two jungles that are 150 miles apart. An antelope runs at an average speed of 30 mph, a lion runs at an average speed of 25 mph, and an elephant runs at an average speed of 15 mph.
The constant variation is ?

Answers

Answer:

cheetah: 3 hours

Antelope: 5 hours

Lion: 6 hours

Elephant: 15 hours

Step-by-step explanation: i choose these answers because of the amount  of time it takes for each animal to run 150 nonstop

50*3=150

30*5= 150

25*6= 150

15*10= 150

Answer:

Cheetah: 3 hours

Antelope: 5 hours

Lion: 6 hours

Elephant: 10 hours

Step-by-step explanation:

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