what does the u stand for in these problems? is it the same as r?

What Does The U Stand For In These Problems? Is It The Same As R?

Answers

Answer 1

I think "u" stands for units. [tex]u^2[/tex] means units squared which is like saying ft^2 if you were looking for the area of something with feet dimensions. So in this case, the circle has a diameter of x units (u) and an area of x units^2 ([tex]u^2\\[/tex]). It is not the same as r. "r" is most always going to be used to represent the radius.


Related Questions

Given the linear equation y = -3x
identify the initial value and rate of change
Hurry timed test!!

Answers

Answer:

here you go. hope u past the test

Step-by-step explanation:

I hope it's helpful :)

There is an array under. what is the last number?
1 2 4 7 13 24 ?

Answers

Answer:

Here's one possible solution

Step-by-step explanation:

Double the number and subtract the corresponding value from the sequence

0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5...

        1 + 1 - 0 = 2

      2 + 2 - 0 = 4

       4 + 4 - 1 = 7

       7 + 7 - 1 = 13

   13 + 13 - 2 = 24

 24 + 24 - 2 = 46      ←←←

 46 + 46 - 3 = 89

 89 + 89 - 3 = 175

175 + 175 - 4 = 346

Area =12
X+2
X+4
X =

Answers

Answer:

To find area of the square you'll need to square one side

(3X)^2 = 81

9(X)^2 = 81

(x)^2 = 81/9

x^2 = 9

X = (9)^1/2

X = 3

PLEASE HELP ME WITH GEOMETRY
What composition of rigid motions maps STR to MNP?

Answers

Answer:

first option

Translate seven left followed by mirror over y = 2

Step-by-step explanation:

The solution is Option A.

The translation of triangle MNP to triangle STR is a translation of 7 units to the right and a reflection along R = 2

How does the transformation of a function happen?

The transformation of a function may involve any change.

Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.

If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:

Horizontal shift (also called phase shift):

Left shift by c units:  y=f(x+c) (same output, but c units earlier)

Right shift by c units:  y=f(x-c)(same output, but c units late)

Vertical shift:

Up by d units: y = f(x) + d

Down by d units: y = f(x) - d

Stretching:

Vertical stretch by a factor k: y = k × f(x)

Horizontal stretch by a factor k: y = f(x/k)

Given data ,

Let the triangle be represented as MNP

Now , the transformed triangle be STR

Now , the translation is given as

Step 1 :

The coordinates of triangle is MNP

M = M (-5 , 2 )

N = N ( - 8 , 5 )

P = P ( -2 , 4 )

Now , the translation of 7 units to the right will result in

M' = M' ( 2 , 2 )

N' = N' ( -1 , 5 )

P' = P' ( 5 , 4 )

Step 2 :

The coordinates of the translated triangle M'N'P' is

M' = M' ( 2 , 2 )

N' = N' ( -1 , 5 )

P' = P' ( 5 , 4 )

Now , on reflection of triangle M'N'P' by R = 2 , we get

S = S ( 2 , 2 )

T = T ( -1 , -1 )

R = R ( 5 , 0 )

Hence , the translation of triangle MNP to triangle STR is a translation of 7 units to the right and a reflection along the R = 2

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Can someone please explain this problem to me? i would really really REALLY appreciate it omg

Answers

Answer:

f(0) = 3

f(-2) = -15

Step-by-step explanation:

You just have to plug in the value in f(b) into the b of the equation.

So for f(0) --> 2(0)^3 - |0-4| + 7

2(0) - |-4| + 7

0 - 4 + 7 = 3

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

for f(-2)

2(-2)^3 -|-2-4| + 7

2(-8) - 6 + 7

-16 -6 + 7 = -15

a length of top is stretched between the top edge of a building and a stake in the ground the head of the stake is at ground level. the rope also touches a tree that is growing half way between the stake and the building. if the tree is 38 ft tall how tall is the building?

Answers

The relationship between the rope, the building, the tree and the ground is an illustration of similar triangles and equivalent ratios.

The building is 76ft tall

The height of the tree is given as:

[tex]Height = 38ft[/tex]

The position of the tree is halfway between the building and the stake.

From the figure, the rope touches the top of the building, and the top of the tree.

This means that: the height of the building is twice the height of the tree.

So, we have:

[tex]Building=2\times 38ft[/tex]

[tex]Building=76ft\\[/tex]

Hence, the building is 76ft tall

Read more about similar triangles at:

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1038*472 please help

Answers

Answer:

443,226

Step-by-step explanation:

I need help on this math question

Answers

Answer:

84

Step-by-step explanation:

7 Sizes * 3 Lengths * 4 Colors = 84

help me solve thisss question

Answers

The angles shown are vertical angles, which are equal to each other.
2x+30=100
Subtract 30 from both sides:
2x=70
Divide 2 from both sides:
x=35

what is 2 + 2 no one in my class can get it my teacher says its the hardest question I want to look smart please help

Answers

Answer:

4

Step-by-step explanation:

use your fingers and count 2 fingers then put 2 more up and count how many u got then. boom u got 4

2+2 =

6 because 2 + 2 pkus (2)

1 gallon is equal to 4 quarts or 8 pints. How many pints are in 3 gallons?

Answers

Answer:

24 pints

Step-by-step explanation:

if 1 gallon is = to 8

then 3 gallons is 24

There are 24 pints in 3 gallons.

To determine how many pints are in 3 gallons, we can use the conversion factor provided: 1 gallon equals 8 pints.

Step 1: Calculate the number of pints in 1 gallon.

Since 1 gallon equals 8 pints, we can write this as 1 gallon = 8 pints.

Step 2: Multiply the number of pints in 1 gallon by the number of gallons.

To find the number of pints in 3 gallons, we multiply the number of pints in 1 gallon (8 pints) by 3 gallons:

3 gallons × 8 pints/gallon = 24 pints.

Therefore, there are 24 pints in 3 gallons.

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2+2+4+6+9+2+4+5+7+0+10+3

Answers

Answer:

The answer is 54.

Step-by-step explanation:

You add all these numbers up.

What is the value of 3^2x+1, if 3^x=a

Guys HELPPPPP

Answers

Step-by-step explanation:

We use the power rule a^(x+y) = a^x * a^y:

3^(2x+1) = 3^(2x) * 3

We can re-write 3^(2x) as (3^x)^2, and we know that 3^x = a, so:

3a^2 is the final answer. There is not exact value, it's all just about re-writing.

[tex]3a^2 [/tex] is a required answer.

Answer:

solution given:

[tex]3^{2x+1}=? [/tex]

if [tex] 3^x=a[/tex]

By using power rule, we can write

[tex]3^{2x+1}[/tex] as

[tex]3^{2x+1}=(3^x)^2*3^1 [/tex]

[tex]a^2*3=3a^2 [/tex]

LAST ATTEMPT IM MARKING AS BRAINLIEST!! (Pythagorean theorem )

Answers

Answer:

x = √7km

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

You take a right triangle and find the lengths of the two sides that are vertical and horizontal. Then, using the formula a^2 + b^2 = c^2, find the length of C

(aka: Hypotenuse)

hope this helps!

-2(x-6)=6 help me out

Answers

Answer:

x = 9

Step-by-step explanation:

i took the quiz

[tex]\mathfrak{-2(x-6)=6} [/tex]

[tex]\mathfrak{-2x+12=6} [/tex]

[tex]\mathfrak{-2x=6-12} [/tex]

[tex]\mathfrak{-2x=-6} [/tex]

[tex]\boxed{\mathfrak{x=3} }[/tex]

Layla missed 38 questions on her multiple choice math final that had a total of 200 problems. What percentage of questions did Layla answer correctly?

Answers

Answer:

81%

Step-by-step explanation:

200-38= 162

162/200= 81/100

81%

Carol's Phone Service charges $17.62 for an activation fee plus $3 for every gigabyte (g) used. Which of the following graphs models the situation?

Answers

Answer:

a

Step-by-step explanation:

17.62 y intercept

slope 1/3

A Is correct do the equation

4x+2=5x-1
Find solution to the equation

Answers

Answer:

3

Step-by-step explanation:

4x+2=5x-1

4x - 5x = -1 -2

x = 3

MATHS QUESTIONS PLEASE SOLVE

1. 121 Divided by 11 is

11

10

19

18





2. 60 Times of 8 Equals to

480

300

250

400





3. Find the Missing Term in Multiples of 6 : 6, 12, 18, 24, _, 36, 42, _ 54, 60.

32, 45

30, 48

24, 40

25, 49





4. What is the Next Prime Number after 7 ?

13

12

14

11





5. The Product of 131 × 0 × 300 × 4

11

0

46

45




6. Solve 3 + 6 × ( 5 + 4) ÷ 3 - 7

11

16

14

15





7. Solve 23 + 3 ÷ 3

24

25

26

27





8. What is 6% Equals to

0.06

0.6

0.006

0.0006





9. How Many Years are there in a Decade?

5 years

10 years

15 years

20 years





10. How Many Months Make a Century?

12

120

1200

12000

Answers

1. 11
2. 480
3. 30, 48
4. 11
5. 0
6. 14
7. 24
8. 0.06
9. 10 years
10. 1200

can anyone find out what this is?

Answers

Answer:

Expression D

Step-by-step explanation:

all other answers are above 15! hope this helps :D

This is a special array.
1,2,2,5,2,2,9,0,...
what is next number?

Answers

Answer:

2

Step-by-step explanation:

the first number is one .then you write number two twice . The next number is the summation of the three previous numbers .then you write number two twice and the next number is the summation of the three previous numbers .and you do that regularly

W LOOKS LIKE PAIN, DEM
Directions:
Plattbo ondorod patroof obere ca a pregl la tho endor boy
aro Motod conmocilag tbeca with longercato as you plot thom.
Start a new Une after the word "LINE ENDE.
• (1.-20)
(3,-20)
(3.-19)
(4,-10)
(4,-5).
(2,-7)
LINEENDS
(4, 21)
(S24)
(S, 20)
(1, 20)
(0, 19)
(4, 16)
(d, 14)
(3, 14)
(2, 15)
LINZENDS
(-8, 15)
(-8, 14)
(-4, 12)
(-4, 5)
(-5, 3)
(-6, 0)
(-6,-3)
(-5,-6);
(-4,-7)
(-4,-20)
(-5,-21)
(-6,-23)
(-4,-23)
(-4,-22)
(-3,-20)
(-3,-7)
(-1,-7)
(-1,-20)
(0.-22)
(0,-23)
(2,-23)
(1,-21)
(0,-20)
(0,-7)
(1,-6)
LINEENDS
(4,-5)
(5,-)
(9,-18)
(6,-19)
(6;-20)
(8,-20)
(6.-17)
(6.-8)
(3,-1)
(6, 1)
F2, -3)
(8,4).
(9, 7)
(10, 4)
(9, 2)
(8, 2)
LINEENDS
(-2, 5)
(-2. 12)
(2, 14)
(2, 15)
(0, 10)
(-1, 19)
(-1, 20)
(-5, 20)
(-5, 19)
(-6, 10)
(-8, 15)
(-9, 14)
(-10, 14)
(-10, 16)
(-6, 19)
(-7, 20)
(-11, 20)
(-11, 24)
(-10, 21)
(-9, 21)
(-9, 23)
(-8, 21)
(-6, 21)
(-5, 20)
LINEENDS
(-3, 15)
(-3, 16)
(-4, 17)
(-4, 19)
(-5, 18)
(-1, 18)
(-2, 19)
(-2, 17)
(-3, 16)
LINEENDS
(-i, 16)
(0, 16)
(-1, 15)
(-5, 15)
(-6, 16)
(-5, 16)
LINEENDS
(0,-7)
(2,-7)
(3,-8)
(3,-17)
W, 3)
(5, 4)
(3, 4)
(1, 3)
(0, 3)
(-1, 20)
(0, 21)
(2, 21)
(3, 23)
(3, 21)
Mystery Media
29

Answers

Answer:

Step-by-step explanation:

S

(4,-5)

(5,-)

(9,-18)

(6,-19)

(6;-20)

(8,-20)

(6.-17)

(6.-8)

(3,-1)

(6, 1)

F2, -3)

(8,4).

(9, 7)

(10, 4)

(9, 2)

(8, 2)

LINEENDS

(-2, 5)

(-2. 12)

(2, 14)

(2, 15)

(0, 10)

(-1, 19)

(-1, 20)

(-5, 20)

(-5, 19)

(-6, 10)

(-8, 15)

(-9, 14)

(-10, 14)

(-10, 16)

(-6, 19)

(-7, 20)

(-11, 20)

(-11, 24)

(-10, 21)

(-9, 21)

(-9, 23)

(-8, 21)

(-6, 21)

(-5, 20)

LINEENDS

(-3, 15)

(-3, 16)

(-4, 17)

(-4, 19)

(-5, 18)

(-1, 18)

(-2, 19)

(-2, 17)

(-3, 16)

LINEENDS

(-i, 16)

(0, 16)

(-1, 15)

(-5, 15)

(-6, 16)

(-5, 16)

LINEENDS

(0,-7)

(2,-7)

(3,-8)

(3,-17)

W, 3)

(5, 4)

(3, 4)

(1, 3)

(0, 3)

(-1, 20)

(0, 21)

(2, 21)

(3, 23)

(3, 21)

Mystery Media

Dave and Kyle are 40 miles apart on a path when they start moving toward each other. Dave runs at a constant speed of 8 miles per hour, while Kyle walks at a constant speed of 5 miles per hour. How long does it take until they meet?

Answers

Answer:

About 3 hours

Step-by-step explanation:

together, they go 13 miles in one hour. 40/13 = 3 with remainder 1

Ms Lewis is hiring a carpenter to repair her shed the cost of carpenter L is shown in the table
Part a. What is the initial cost and hourly rate of carpenter L?
Part B write an equation to repent the function
Part C. Carpenter n charges 60$ an hour and and additional 195$ for the materials needed what is the difference in cost between carpenter N and carpenter L
Initial cost __
rate per hour __
Equation__
difference in cost__

Answers

Based on the information given, it can be deduced that the initial cost will be $187 and the hourly rate is $72 per hour.

From the information given, the initial cost is $187. The cost for 2 hours is $259 and the cost for 3 hours is $331.

Therefore, the rate per hour will be:

= $259 - $187 = $72

The equation will then be:

= 187 + 72h

Lastly, the difference in the costs is $72.

Learn more about equations on:

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Pls Help! Actually give a legit answer (NO LINKS!)

Answers

Answer:

unfortunately i cannot tell you the exact answers; however, i can suggest something instead. my suggestion is that if there's any math notes that are available, maybe you could look over them-then apply that to the problems.

Step-by-step explanation:

I hope this helps you!

A birthday cake was cut into equal pieces, and 10 pieces were eaten. The
fraction below shows how much cake was left over. According to the fraction,
into how many pieces was the cake cut?
1
11
A. 1
B. 10
C. 21
D. 11

Answers

assuming the fraction is 1/11, the denominator shows how many parts the WHOLE was sliced into, namely 11 parts.

What is the standard deviation of 82,93,89 and 88?

Answers

Answer:

4.546, rounded

Step-by-step explanation:

pls mark brainliest!

find the rate of change
input 1 2 3 4 5
output 11 13 15 17 19

Answers

Answer:

  2

Step-by-step explanation:

x-values in the table increase by 1, while y-values increase by 2. The rate of change is ...

  m = slope = rate of change = (change in y)/(change in x) = 2/1 = 2

The rate of change is 2.

Answer:2

Step-by-step explanation:

If [tex]a + ar + ar^{2} + ... = 15[/tex] and [tex]a + ar^{2} + ar^{4} + ar^{6} + ... = 9[/tex], then what is the sum of the geometric series [tex]a + ar^{3} + ar^{6} + ar^{9} + ...[/tex]?

Answers

Notice that

a + ar³ + ar⁶ + ar⁹ + ... = a + r³ (a + ar³ + ar⁶ + ...)

but the grouped sum on the right side is the same as the sum on the left side. This means that, if the sum we want to compute

a + ar³ + ar⁶ + ar⁹ + ...

converges to S, then

S = a + r³ S

Solve for S :

S - r³ S = a

(1 - r³) S = a

S = a/(1 - r³)

Similarly, knowing the value of the first sum, we have

a + ar + ar² + ar³ + ... = a + r (a + ar + ar² + ...)

but we know

a + ar + ar² + ... = 15

so

15 = a + 15r

and knowing the value of the second sum, we have

a + ar² + ar⁴ + ... = a + r² (a + ar² + ar⁴ + ...)

so

9 = a + 9r²

Solve these two equations for a and r :

15 = a + 15r   ⇒   a = 15 - 15r

9 = a + 9r²   ⇒   9 = 15 - 15r + 9r²   ⇒   3r² - 5r + 2 = (3r - 2) (r - 1) = 0

⇒   r = 2/3 or r = 1

We cannot have r = 1, since that would mean

a + a + a + ... = 15

since the left side is adding infinitely many copies of some constant; such a sum can never converge to a finite number. So it must be that r = 2/3, and it follows that a = 15 - 15 (2/3) = 5.

Then the sum we want has a value of

S = 5/(1 - (2/3))³ = 135/19

Answer:

Step-by-step explanation:

  a + ar¹ + ar² + ar³ + ... = 15       #1

r(a + ar¹ + ar² + ar³ + ...) = 15r

       ar¹ + ar² + ar³ + ... = 15r      #2

subtract #2 from #1

a = 15 - 15r

     a + ar² + ar⁴ + ar⁶ + ... = 9         #3

r²(a + ar² + ar⁴ + ar⁶ + ... )= 9r²

         ar² + ar⁴ + ar⁶ + ... = 9r²       #4

subtract #4 from #3

a = 9 - 9r²

15 - 15r = 9 - 9r²

9r² - 15r + 6 = 0

3r² - 5r + 2 = 0

r = (5 ±√(5² - 4(3)(2))) / (2(3)

r = (5 ± 1) / 6

r = 1

or

r = 4/6 = 2/3

if r = 1 then a = 15 - 15(1) = 0 and a series of zeros added together can never equal 15 so r = 2/3 must be true.

a = 15 - 15(2/3) = 5

   a + ar³ + ar⁶ + ar⁹ + ... = C           #5

r³(a + ar³ + ar⁶ + ar⁹ + ...) = Cr³

         ar³ + ar⁶ + ar⁹ + ... = Cr³          #6

subtract #6 from #5

a = C - Cr³

a = C(1 - r³)

C = a/(1 - r³)

C = 5/(1 - (2/3)³)

C = 5/(1 - 8/27)

C = 5/(19/27)

C = 5(27/19)

C = 135/19 = 7.1052631578947368....

Leora is finding the length of a horizontal line segment on a coordinate grid She subtracted the x coordinates and got
-17.5 What is her next step?
Add 17.5
Take the absolute value of -17.5
Add the y.coordinate values.
Round up to -17

Answers

Answer:

Take the absolute value of -17.5

Step-by-step explanation:

Answer:

2. Take the absolute value of ' - 17. 5 '

Step by Step Explanation:

The distance/length is always positive, so make sure to take the absolute value of -17.5

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