find product simplified form: (x√y + z) (x√y - z)

x^2y - z^2
x^2y + 2zx√y - z^2
x^2y - 2^2
x^2y^2 - z^2

Answer:

11+0.48+0.23=11.71.

Answer: B and C

Step-by-step explanation: the expression is 1/784 when u simplify and when u simplify B and C, u will get 1/784 so we can see that B and C is equivalent to the expression

Answer:

3

Step-by-step explanation:

edg 2020 says i was right got 100 on test

Answer:

-7

Step-by-step explanation:

Plug in your x and y values and use the information

The value of the expression  14 - (2x - y) when x = 3 and y = 2 is 10.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given,  14 - (2x - y) to obtain the value of the expression when x = 3 and y = 2 we'll imply replace the numerical values of x and y which is,

= 14 - (2(3) - 2).

= 14 - 6 + 2.

= 10

learn more about numerical expressions here :

https://brainly.com/question/29199574

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Answer:

Within 52 weeks, the amount of water in the two fish tanks will be the same.

Step-by-step explanation:

First, let's make the two equations equal to each other by placing an equal sign.

832 - 5x = 1040 - 9x

Now, that they are equal to each other, we can solve for x.

Okay, so we can move -5x to the other side by adding both sides with 5x.

832 = 1040 - 4x

Then, subtract 1040 from both sides to move it to the other side.

832 - 1040 = -208

-208 = -4x

Lastly, divide both sides by -4 to get the value of x.

-208/-4 = 52

x = 52

Answer:

I think its D. -9,7

Step-by-step explanation:

Answer:

[tex]11\dfrac{3}{5}$ miles[/tex]

Step-by-step explanation:

Miguel ran [tex]2\dfrac{9}{10}[/tex] miles on Monday.

On Friday, he ran 5 times as far as he did on Monday.

Miles run on Friday

[tex]=5 X 2\dfrac{9}{10}[/tex]

[tex]=5 X \dfrac{29}{10}\\=\dfrac{29}{2}$ miles[/tex]

Difference in Number of Miles Run

[tex]=\dfrac{29}{2}-\dfrac{29}{10}\\=\dfrac{145-29}{10}\\=\dfrac{116}{10}\\=11\dfrac{3}{5}$ miles[/tex]

Therefore, Miguel ran [tex]11\dfrac{3}{5}$ miles[/tex] farther on Friday.

Answer:

Step-by-step explanation:

2:3:4:6

Angles in a quadilateral 360

2 + 3+4+6 =15

2/15 × 360° =48°

3/15 × 360° = 72°

4/15 × 360° = 96°

6/15 × 360°  = 144°

Answer: The probability is 8%

Step-by-step explanation:

Please add a little more detail on what is going on in the problem / question above.

Answer:

Rob would be going 45 over if he's in a 45

Step-by-step explanation:

90-45=45

And to check your work 45+45=90

Answer:

14 lives in total

Step-by-step explanation:

7*7=14

Answer:

63 lives

Step-by-step explanation:

You had 7 players, and two more joined.  Add these together for the total amount of players.

7 + 2 = 9

Now multiply the number of players by the number of lives they each have.

9 × 7 = 63

There are 63 total lives.

Answer:

a. 9x^4

b. 3 x^5y

Step-by-step explanation:

a. 5x^4 + 4x^4

Combine like terms

9x^4

b. 12x^5 y − 9x^5 y

Subtract like terms

  3 x^5y

Answer:

203 rpm

Step-by-step explanation:

The speed of the larger gear can be calculated using the following equation:

[tex] v = \omega*R [/tex]  

Where:

ω: is the angular velocity of the motor = 700 rpm

R: is the gear ratio

The gear ratio is the following:

[tex] R = \frac{n_{(a)}}{n_{(b)}} [/tex]  

Where:

n(a): is the number of teeth on the small gear = 12 teeth  

n(b): is the number of teeth on the larger gear = 42 teeth

The gear ratio is:

[tex]R = \frac{12}{42} = 0.29[/tex]

Now, the speed of the larger gear is:

[tex]v = \omega*R = 700 rpm*0.29 = 203 rpm[/tex]

Therefore, the speed of the larger gear is 203 rpm.

I hope it helps you!                        

Answer:

5/44

Step-by-step explanation:

3 red, 4 blue, and 5 white = 12 marbles

P(red) = number of red / total

          = 3/12 = 1/4

no replacement

2 red, 4 blue, and 5 white = 11 marbles

P(white) = number of white / total

             = 5/11

P(red, no replacement, whit) = 1/4*5/11 = 5/44

Answer:

A cylinder has a height of 13 feet and a radius of 9 feet. What is its volume? Answer is  V≈3308.1ft³

Answer:

111.58 feet

Step-by-step explanation:

Given that the length of the string (AB in the attached diagram) is 120 feet.

Selena (at point D) is standing 24 feet from point A, where the kite is attached to the ground.

Since the kite is directly above Selena's head, the problem forms a right triangle.

Using Pythagoras theorem

[tex]|AB|^2=|BD|^2+|AD|^2\\120^2=|BD|^2+24^2\\|BD|^2=120^2-24^2\\|BD|^2=13824\\|BD|=\sqrt{13824} \\|BD|=117.58$ ft[/tex]

Serena's height (CD=6 feet)

The distance of the kite above her head is BC in the drawn diagram.

Therefore:

|BD|=|BC|+|CD|

117.58=|BC|+6

|BC|=117.58-6

|BC|=111.58 feet

The kite is approximately 111.58 feet above Selena's head/

Answer:

A minor arc

Step-by-step explanation:

Answer:

minor arc

Step-by-step explanation:

Answer:

The answer on the top is the best line for a line of best fit because...

Step-by-step explanation:

there is a noticeable correlation in the first graph- a positive one. The line of best fit should have about the same amount of line plots on the top than on the bottom. Also, there can be a few line plots that is touching the line of best fit as well. Those line plots will be about the middle of the data and provide a good guideline to make your line of best fit the most accurate. The second graph is pretty scattered and doesn't have a clear correlation therefore having no correlation. Hope this helps!!

Answer:   D

d. because they are not subtracted(C), the two fractions do not add up to 13(B), and the number is not equal to 2(A).

Answer:

3 1/2 if you need decimal then 3.5

Step-by-step explanation:

sorry if wrong

but tell me if I am correct

[tex] {x}^{3} = 74.088 \\ x = \sqrt[3]{74.088} \\ x = 4.2[/tex]

Answer:

4.2 cm

Step-by-step explanation:

The side of a cube cubed is equal to the volume.

a³ = V

The volume is already given, solve for the side.

a³ = 74.088

a = ∛74.088

a = 4.2

The side x is 4.2 centimeters.

Answer:

4 square feet each.

Step-by-step explanation:

A square is 4 times 4 so if you divide 16 divided by 4 it is 4.

Answer:

The sides are going to 4 square feet long.

Step-by-step explanation:

This is true because since a square has equal length sides. And there are 4 sides. So divided 4 by 16 to get 4. So, the answer is 4 square feet long.

Mark brainliest if ya don't mind!

Answer:

B -6x+35=-6x+35

Step-by-step explanation:

Let's analyze the options:

A ........................

This one has one solution

B  ........................

This one has infinitely many solutions as results in true equation for any value of x

C  ........................

This one has one solution

D  ........................

This one has no solutions as results in false equation for any value of x

Mean= 5.1 (Sum of all the terms/number of terms)

‭( 6   +   7   +   2   +   4   +   6   +   6   +   9   +   5   +   3   +   3 )   ÷   10 =‬  5.1

Median= 5.5 (The middle term when you order them from lowest to highest)

2 3 3 4 5 6 6 6 7 9

Step-by-step explanation: The mean of a data set is equal tot he sum of the set of numbers divided by however many numbers are in the set.

So to find the mean of the data set shown here,

let's begin by adding the numbers.

So we have 6 + 7 + 2 + 4 + 6 + 6 + 9 + 5 + 3 + 3.

Adding the numbers, we get 51.

Now, 51 will be divided by the number

of numbers in the set which is 10.

So 51 divided by 10 gives us 5.1.

So the mean of the data set is 5.1.

Now, the median is the middle number in the data set

when the data set is written from least to greatest.

So let's write our data set from least to greatest.

So we have 2, 3, 3, 4, 5, 6, 6, 6, 7, 9.

Notice that there are two numbers in the middle, 5 and 6.

In this situation, add the numbers and divide by 2.

So 5 + 6 is 11 and 11 divided by 2 is 5.5.

So the median is 5.5.

Answer:

T(x) or total account balance = C(x) + S(x)

Step-by-step explanation:

where = C(x) = -2401 - 140 + 1,400  

and

S(x) = 4503 + 100

This implies that:

C(x) = 3,661

S(x) = 4,603

Therefore, T(x) 3,661 + 4,603 = 8,264

T(x) is the total account balance or the addition of the balances of checking and saving accounts.

C(x) is the checking account balance.

S(x) is the saving account balance.

Answer

(On attachment)

Step-by-step explanation:

Answer:

a) [tex]2.036x^-\frac{1}{3}[/tex]

b) [tex]\frac{x^2}{\sqrt{x+1} }[/tex]

Step-by-step explanation:

For a cube, all the sides are equal. Let the length of each side be L

a) The volume of a cube (V) = L³

For the first cube:

V = 270x in³

270x = L³

L = ∛(270x) = [tex]6.463x^\frac{1}{3}[/tex]

For the second cube:

V = 32x² in³

32x² = L³

L = ∛(32x²) = [tex]3.175x^\frac{2}{3}[/tex]

Ratio of length = [tex]\frac{6.463x^\frac{1}{3} }{3.175x^\frac{2}{3} }=2.036x^-\frac{1}{3}[/tex]

b) The surface area of a cube (s) = 6L²

For the first cube:

s = 6x⁴ ft²

6x⁴ = L²

L = √6x⁴= 2.45x²

For the second cube:

s = 6(x + 1) ft²

6(x + 1) = L²

L = √6(x + 1)= 2.45√(x + 1)

Ratio of the length = [tex]\frac{2.45x^2}{2.45\sqrt{ (x + 1)}} =\frac{x^2}{\sqrt{x+1} }[/tex]

Tangents are slopes, and there are two angles with the same slope that are 180 degrees apart, not to mention an infinite number of coterminal brethren all with the same tangent.  So this question is a bit ambiguous.

Let's assume they want the principal value of the inverse tangent, between -90 degrees and +90 degrees.  A tangent bigger than 1 means it will be between 45 and 90 degrees.

tan x = 2.246

x = arctan 2.246 = 66.00 degrees

Answer: 66

Answer:

73.1 cm

Step-by-step explanation:

In the drawing, the rubber track is in black and the wheels are in light gray.

As we can see in the figure, the rubber track will have a length of two halfs of a circunference of radius 8 cm plus six diameters of 8 cm. So the total length is:

Length of rubber track = pi * 8 + 6 * 8 = 25.13 + 48 = 73.133 cm

Rounding to one decimal place, we have that the length is 73.1 cm

This question is incomplete because it lacks the diagram of the 4 circular wheels.

Find attached to this answer the appropriate diagram

Answer:

100.5cm

Step-by-step explanation:

The formula to be used in this calculation is the circumference of a circle.

The circumference of a circle can be defined as the actual length of a circle when it is stretch out(opened up) or the distance around a circle.

The formula for the circumference of a circle is given as 2πr where r = radius of the circle

Or πD where D = Diameter of the circle

In the question, we are given the diameter of the circle = 8cm

So we use the Formula

= πD

The length of the rubber track around one wheel is

= π × 8cm = 25.132741229cm

From the attached diagram, we can see we have 4 wheels.

The length of the rubber track that goes around the four wheels is calculated as

4 × 25.132741229cm = 100.53096491cm.

Approximately to one decimal place = 100.5cm

Therefore, the length of the rubber track that goes around the four wheels to one decimal place is 100.5cm

Answer:

Step-by-step explanation:

Given the relationship between the elapsed time, tea, in days since the videos first uploaded, and the total number of views, V(d) that the video received modeled by the following function

V(d)=[tex]4^{1.25d}[/tex]

In order to know the number of views the video will receive after 6 days, we will substitute the number of days i.e d = 6 into the modeled equation as shown;

[tex]V(6)=4^{1.25(6)}\\V(6)=4^{7.5}\\V(6) = 32,768views[/tex]

Answer:

32,768

Step-by-step explanation:

Answer:

The transformed points of the triangle ABC are [tex]A' (x,y) = \left( \frac{1}{2}, \frac{1}{2}\right)[/tex], [tex]B'(x,y) = \left(\frac{9}{2}, \frac{1}{2} \right)[/tex], [tex]C'(x,y) = \left(\frac{1}{2}, \frac{9}{2}\right)[/tex]

Step-by-step explanation:

The new points after applying the scale factor are, respectively:

[tex]A' (x,y) = \frac{1}{2}\cdot (1,1)[/tex]

[tex]A' (x,y) = \left( \frac{1}{2}, \frac{1}{2}\right)[/tex]

[tex]B' (x,y) = \frac{1}{2}\cdot (9,1)[/tex]

[tex]B'(x,y) = \left(\frac{9}{2}, \frac{1}{2} \right)[/tex]

[tex]C'(x,y) = \frac{1}{2}\cdot (1,9)[/tex]

[tex]C'(x,y) = \left(\frac{1}{2}, \frac{9}{2}\right)[/tex]