(a) A square has a perimeter of 68 cm. What is the length of each side?

Answers

Answer 1

Answer:

17cm

Step-by-step explanation:

The perimeter of a square is the 4 sides added up, so we can just divide 4 by 68 to find out what one length is.

68/4= 17

We can prove this by adding it again.

17+17+17+17=68


Related Questions

rewrite in simplest radical form 1 . show each step of your process.

-3/6

Answers

Answer:

what is this russian math?

Step-by-step explanation:

HELP!!! 100 POINTS ANSWER FAST

Answers

Answer:

(x - 4)^2 = 9

Step-by-step explanation:

Completing the square

x^2 - 8x + 7 = 0x^2 - 2*4x + 16 - 9 = 0(x^2 - 2*4x + 4^2) = 9 (x - 4)^2 = 9

The blanks are

- 4 and 9

Answer:

(x^2-4)^2 = 9

Step-by-step explanation:

First, isolate the constant:

x^2-8x = -7

Then, since (a-b)^2 = a^2-2ab+b^2, you should add 16(4^2) to both sides:

x^2-8x+16 = 9

Now, we can rewrite the right-hand side as (a-b)^2:

(x-4)^2 = 9

one bath of cookies calls for 5 cups of flour for every 3 cups of chocolate chips how many cups of flour should be used for 27 cups of chocolate chips

Answers

Answer:

16.2

Step-by-step explanation:

0.6 * 27

Hope it helps!!!Brainliest pls!!!

Find the union of A = {2,3,4} and B = {3,4,5)

Answers

Answer:

A U B = {2,3,4, 5}

Step-by-step explanation:

Union means join together

A U B = {2,3,4, 5}

The revenue, in thousands of dollars, of a new flavor of liquor is given below as function of the number of gallons (in hundreds), x, sold:


[tex]r(x) = 50x - {x}^{2} [/tex]
What is the maximum revenue? Use units​

Answers

Answer:

  $625,000

Step-by-step explanation:

The maximum revenue will be found where the derivative of the revenue function is zero.

  r'(x) = 50 -2x = 0

  50 = 2x

  x = 25

When 2500 gallons are sold, the revenue is ...

  r(25) = 50(25) -25(25) = (50 -25)(25) = 25(25) = 625 . . . thousands

The maximum revenue is $625,000.

1/5(12b+5) for b = 5/6​

Answers

Answer:

3

Step-by-step explanation:

eq.

1/5(12×5/6+5)

=1/5×(10+5)

=1/5×15

=3

Answer:

3

Step-by-step explanation:

Kate wants to buy a new bicycle from a sporting goods stores the bicycle she wants normally sells for $440 the store has a sale? where all bicycle cost 3/4 of the regular price what is the sale price of the bicycle …

Answers

Given parameters:

Normal selling price off the bicycle = $440

Discount fraction  = [tex]\frac{3}{4}[/tex]

Unknown:

Sale price of the bicycle = ?

Solution:

The discounted sale price of the bicycle;

                      = normal selling price x discount fraction

Input the parameters and solve;

           Discounted sale price of the bicycle  =[tex]\frac{3}{4}[/tex] x 440

                                                                        = 3 x 110

                                                                        = $330

The discounted sale price of the bicycle is $330

Write an equation that can be described by the statement: y is equal to 1/3 of x.

Enter the correct answer in the box.

Answers

Answer:  [tex]y=\frac{1}{3} x[/tex]

Colin’s piano lesson is 45 minutes, or Three-fourths of an hour, long. If he practices 6 different songs and spends an equal amount of time on each song, what fraction of an hour does he spend practicing each song?

Answers

Answer:

Colin spends 1/8 of an hour practicing each song

Step-by-step explanation:

Colin's piano lesson is 3/4 of an hour, long.

In that period, he practices 6 different songs, spending an equal amount of time on each one.

This means that each song gets the sixth part of the lesson duration. The fraction that expresses that amount is:

[tex]\displaystyle \frac{\frac{3}{4}}{6}=\frac{3}{24}=\frac{1}{8}[/tex]

Colin spends 1/8 of an hour practicing each song

Answer:

1/8

Step-by-step explanation:

Simplify:

22 - 3 × 6 + 52
A.
38
B.
139
C.
29
D.
65

Answers

Answer:

22 - 3 × 6 + 52 = 56

Step-by-step explanation:

Multiply

3×6 = 18

22-18+52

Add and subtract

22-18 = 4

4+52 = 46

Answer:

56

Step-by-step explanation:

To solve we must use the order of operations which is PEMDAS.

P-Parenthesis

E-Exponents

M-Multiplication

D-Division

A-Addition

and S-Subtraction

First we multiply -3 and 6 which gives us -18. So our equation is now 22-18+52.

Next we do addition. -18+52 is 34, plus 22 gives us 56.

Hope this helps :)

Suppose you were to create a scatter plot of the data for speed and distance traveled. Would you expect to see a
positive, negative, or no relationship betwen the two variables. Explain your answer.
a. negative relationship, as the speed decreases, the distance increases.
b. positive relationship, as the speed decreases, the distance increases.
c. positive relationship, as the speed increases, the distance increases
d. no relationship.

Answers

Answer: its c. positive relationship; as the speed decreases, the distance increases.

Step-by-step explanation:

You bought a notebook for $2 and 6 packs of crayons. If you spent a total of $26, how much was each pack of crayons? *

Answers

$4

The notebook is $2
26-2=24

6 packs of crayons

24/6

4

Answer:

$4

Step-by-step explanation:

It was 4 dollars because you bought one notebook worth two dollars and six-packs of crayons. 26-2 is 24, and 6x4 is 24, so it is worth four dollars.

What's 5x5+6x3-1

Me brain is no working, please help

Answers

Answer:

42

Step-by-step explanation:

5*5+6*3-1

25+6*3-1

25+18-1

43-1

=42

I hope this helped, please give me Brainliest if it did. :)

Pl ease help what is with give brainlist answer!

-5/6+6/18

1.-1/2

2.12/49

3.-1 and 1/6

4.12 ​

Answers

Answer:

option 1 is true. -1/2=-0.5

Answer:

-1/2

Step-by-step explanation:

-5/6 + 6/18

Simplify the second fraction by dividing the top and bottom by 3 ( then we will have like denominators)

-5/6 + 2/6

Combine the numerators since the denominators are the same

-3/6

Divide the top and bottom by 3

-1/2

Evaluate:
[tex] \\ { \displaystyle{ \rm \lim_{x \to1} \left \{ \frac{ {x}^{4 } - {3x}^{2} + 2 }{ {x}^{3} - {5x}^{2} + 3x + 1} \right \} }} [/tex]
[tex] \: [/tex]
Don't Spam ​

Answers

Answer:

To Evaluate:

[tex] \\ { \displaystyle{ \rm \lim_{x \to1} \left \{ \frac{ {x}^{4 } - {3x}^{2} + 2 }{ {x}^{3} - {5x}^{2} + 3x + 1} \right \} }}\\ \\[/tex]

Using L'Hospital's Rule

Let f(x) and g(x) be two common functions which are differentiable on an open Interval , at a point a where,

[tex]\\{ \displaystyle{ \lim_{x \to a}{ \rm{f(x)} = { \displaystyle{ \lim_{x \to a}}} \: { \rm{g(x)}} = 0 \: or \: \pm \infty}}}\\ \\[/tex]

Then,

[tex]\\{ \displaystyle{ \lim_{x \to a} \frac{{ \rm{f (x)}}}{{ \rm{g(x)}}} = { \displaystyle{ \lim_{x \to a }}} \frac{{ \rm{f '(x)}}}{{ \rm{g'(x)}}}}}\\ \\[/tex]

As x to 0 , we have:

[tex]\\{ \displaystyle{ \lim_{x \to 1}}} \left( \large\rm\frac{ {x}^{4} - {3x}^{2} + 2 }{ {x}^{3} - {5x}^{2} + 3x + 1} \right) = \frac{0}{0}\\ \\[/tex]

Therefore,

[tex]\\{ \large{ \displaystyle{ \lim_{x \to1}}} \left( \large \rm\frac{ {x}^{4} - {3x}^{2} + 2}{ {x}^{3} - {5x}^{2} + 3x + 1 } \right) = { \displaystyle{ \lim_{x \to1} { \small{\frac{ {4x}^{3} - 6x}{ {3x}^{2} - 10x + 3 }}} = { \small{\frac{4 - 6}{3 - 10 + 3} }} = - \frac{2}{ - 4} = - \frac{1}{2} }}}\\ \\[/tex]

Hence,

[tex]\\{ \displaystyle{ \lim_{x \to1}{\rm{ \left( \frac{ {x}^{4} - 3 {x}^{2} + 2 }{ {x}^{3} - 5 {x}^{2} + 3x + 1 } \right) = { \boxed{ \red{ - \frac{1}{2} }}}}}}}\\ \\[/tex]

Without using L'Hopital's rule:

Factorize the numerator.

[tex]x^4 - 3x^2 + 2 = (x^2 - 2) (x^2 - 1) = (x^2 - 2) (x + 1) (x - 1)[/tex]

Factorizing cubics is usually a bit trickier. But we know x = 1 makes the denominator vanish, so x - 1 is a factor of the cubic. So for some constants a and b,

[tex]x^3 - 5x^2 + 3x + 1 = (x - 1)^3 + a(x - 1)^2 + b(x - 1)[/tex]

Expanding the right side gives

[tex]x^3 - 5x^2 + 3x + 1 = x^3 + (a - 3)x^2 + (-2a + b + 3)x + a - b - 1[/tex]

Then

[tex]a - 3 = -5 \implies a = -2[/tex]

[tex]-2a + b + 3 = 3 \implies b = -4[/tex]

So we rewrite the limit as

[tex]\displaystyle \lim_{x\to1} \frac{x^4 - 3x^2 + 2}{x^3 - 5x^2 + 3x + 1} = \lim_{x\to1} \frac{(x^2 - 2) (x + 1) (x - 1)}{(x-1)^3 - 2(x-1)^2 - 4(x-1)}[/tex]

x is approaching 1 so x ≠ 1 and we can cancel out factors of x - 1 :

[tex]\displaystyle \lim_{x\to1} \frac{x^4 - 3x^2 + 2}{x^3 - 5x^2 + 3x + 1} = \lim_{x\to1} \frac{(x^2 - 2) (x + 1)}{(x-1)^2 - 2(x-1) - 4}[/tex]

The simplified limand is continuous at x = 1, so we can now evaluate the limit by direct substitution.

[tex]\displaystyle \lim_{x\to1} \frac{x^4 - 3x^2 + 2}{x^3 - 5x^2 + 3x + 1} = \frac{(1^2 - 2) (1 + 1)}{(1-1)^2 - 2(1-1) - 4} = -\frac24 = \boxed{-\frac12}[/tex]

What is the answer to a

Answers

Answer: a = b*r/n

Step-by-step explanation: Hope this helps :^)

Represent the following expressions as a power of the number a (a≠0):
((a^2)^−2)^5÷(a^15)​

Answers

Answer:

=0

Step-by-step explanation:

Let g(x) = 2x and h(x) = x2 + 4.

Evaluate (h ∘ g)(−2).

20

−12

−16

16

Answers

Answer:

Option C, 20 is the answer.

Step-by-step explanation:

Let g(x) = 2x and h(x) = x² + 4

We have to evaluate (h ο g) ( -2 )

Since ( h ο g )x = h [ g(x) ]

                       = ( 2x)² + 4

                       = 4x² + 4

( h ο g ) ( -2 )  = 4 ( -2 )² + 4

                       = 4 × 4 + 4

                       = 16 + 4

                       = 20

Hope it helps!!!Brainliest pls!!!

The thickness of photoresist applied towafers in a semiconductor manufacturing at a particular location onthe wafer is uniformly distributed between 0.2050 and 0.2150micrometers.(a) Determine the cumulative distributionfunction of photoresist thickness.(b) Determine the proportion of wafers that exceeds0.2125 micrometers in photoresist thickness.(c) What thickness is exceeded by 10% of thewafers?(d) Determine the mean and variance of photoresistthickness.

Answers

Answer:

a

  [tex]f(x)= 100 [x - 0.2050][/tex]

b

 [tex]P(X > 0.2125) =  0.25 [/tex]

c

  [tex]a = 0.2140[/tex]

d

Mean [tex]\mu  = 0.21[/tex]

Variance  [tex]\sigma ^2  =  0.0000083 [/tex]

Step-by-step explanation:

From the question we are told that

   The thickness of photoresist follows a uniform distribution

So

     [tex]X\   \~{}\ U \{  0.2050 , 0.2150 \}[/tex]

Generally the probability density function  is mathematically represented as

[tex]F(x) =  \left \{  \frac{1}{ 0.2150 - 02050} , 0.2150< x < 0.2150[/tex]

=>  [tex]F(x) =  \left \{   100 , 0.2150< x < 0.2150[/tex]

Generally the cumulative distribution function is

   [tex]f(x) =  \int\limits^{x}_{- \infty} {F(x)} \, dx[/tex]

Here [tex]- \infty[/tex] means the lower limit which in this case is  02050

So

    [tex]f(x) =  \int\limits^{x}_{0.2050} {100} \, dx[/tex]

    [tex]f(x) =  100 \int\limits^{x}_{0.2050} {1} \, dx[/tex]

=>   [tex] f(x)=100 [ x ] | \left \ x} \atop {0.2050}} \right.[/tex]

=>   [tex]f(x)= 100 [x - 0.2050][/tex]

Generally the proportion of wafers that exceeds 0.2125 is mathematically represented as

     [tex]P(X > 0.2125) =  1 - F(0.2125)[/tex]

=>  [tex]P(X > 0.2125) =  1- 100[0.2125 - 0.2050][/tex]

=>   [tex]P(X > 0.2125) =  0.25 [/tex]

Generally the thickness which is exceeded by 10% of the wafers is mathematically represented as

       [tex]P(X  > a ) =  0.10[/tex]

=>    [tex]1 - F(a) = 0.10[/tex]

=>     [tex]1 -100 (a - 0.2050) = 0.10[/tex]

=>     [tex]100(a -0.2050) =  0.90[/tex]

=>   [tex]a - 0.2050 =  0.009[/tex]

=>   [tex]a = 0.2140[/tex]

Generally the mean is mathematically represented as  

     [tex]\mu  =  \frac{ 0.2050 -0.2150 }{2}[/tex]

=>   [tex]\mu  = 0.21[/tex]

Generally the variance  is mathematically represented as

    [tex]\sigma ^2  =  \frac{1}{12} [0.2150 - 0.2050]^2[/tex]

=>  [tex]\sigma ^2  =  0.0000083 [/tex]

what is the area of a triangle with vertices at (0,0), (0,4) and (4,5)?

Answers

Answer:

8

Step-by-step explanation:

Let us label these coordinates for our own ease:

A(0,0)

B(0,4)

C(4,5)

Area= [Ax(By-Cy)+Bx(Cy-Ay)+Cx(Ay-By)]÷2

Area = [0(4-5)+0(5-0)+4(0-4)]÷2

Area= [0+0-16]÷2

Area = -8

But since the value can not be negative we have consider a modulus in the formula, thus the value is 8

Sarah normally earns £600 each month. In December she is given a bonus of 1/5 of her normal pay. How much will she now earn this month?

Answers

Answer:

She will earn 720 in December(Sorry, can't use the dollar sign.)

Step-by-step explanation:

1/5 of 600 is 120, so you want to add 120 to 600, which would be 720. Hope this helps!

4/7×4/5×7/9
Write your answer in fraction in simplest form

Answers

Answer:

16/45 for fraction, or 0.35 for decimal

Step-by-step explanation:

4/7 x 4/5 × 7/9

reduce numbers with greatest common factor 7

4 × 4/5 × 1/9

calculate the product = 4 × 4 × 1 = 16

5 × 9 = 45

16/45 or 0.35

The water level in a tank measures 15 inches and is decreasing 0.5 inches every minute. How many minutes, x, will it take for the water level to measure 9 inches deep?

Answers

Answer:
The answer is 12 minutes

Step-by-step explanation:
This is because if you're seeing how long it takes to get from 15 inches to 9 inches, that is a difference of 6 inches.
6 / 0.5 inches per minute = 12 minutes

Joseph earned $53 the first week he worked at Jim’s Candy Store and $62 the next week. How much did Joseph earn his first two weeks?
Explore:
Plan:
Solve:
Examine:

Answers

Answer:

$115

Step-by-step explanation:

Because the add does that like answer

I wait that you understand

Elsa earns 5140 for working 20 hours
1) What is Elsa's rate of pay for each hour she works?
A) 5650 per hour
B) $7.00 per hour
$7.25 per hour
D) $2.00 per hour

Answers

Answer:

$2.57

Step-by-step explanation:

divide 5,140 by 20,

5,140/20=257=2.57

the roots of a polynomial equation are 0, 5, and -2. what is the equation written in a factored form and in standard form?

Answers

Answer:

Check the pic

Which equation represents a linear function?

2xy +y=9

y= 124 – 5

3y + x2 + x = 0

4x + 2 (y - 1) = 0

Answers

4x + 2 (y-1) = 0 is a linear function. Since, It doesn’t have any exponents.

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question. There are 15 questions on the test and the students have been given 55 minutes to complete it.

A Table titled Test Time, showing Number of Questions, Time per Item in minutes, and Total Time in minutes. The first row shows Multiple Choice, with m, 3, and 3 m. The second row shows Free Response, with 15 minus m, 8, and x. The third row shows Total, with 15, blank, and 55.
Which value could replace x in the table?

Answers

Answer:

8(15-m)

Step-by-step explanation:

just took the test

simplify without calculator(-5)(7)+4*5​

Answers

Answer:

5*4=9 and if thats -5*7=35 and adding those together gets 35+9=44

Step-by-step explanation:

Answer:

Hello there buddy

Your answer is

35+9=44

Hope it’s helps you buddy

Step-by-step explanation:

~Awesome Jayden

You have two cubes that
you fill with water
to make ice cubes. The first cube has a side
length of 3 units. The second cube has a
side length of 5 units. Write an
expression
that you can use to find the total volume of
ice you can make.

Answers

Answer:

V = 3^3 = 5^3

Volume of each cube is side^3. To find the volume of both cubes just add the two volumes together.

Step-by-step explanation: Your welcome.

Answer:

total volume = 152 units³

given:

first cube side: 3 unitssecond cube side: 5 units

volume of cube: side³

using this formula:

total volume = first cube volume + second cube volume

total volume = 3³ + 5³

total volume = 27 + 125

total volume = 152 units³

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