A rectangle has a length of x + 2 and a width of x-2, and
has an area of 60 square units. Find the length and width
of the rectangle.

Answers

Answer 1

Answer:

L = 10, W = 6

Step-by-step explanation:

(x-2)(x+2) = 60

\(x^{2}\) - \(2^{2}\) = 60

\(x^{2}\) = 60 + 4 = 64

x = \(\sqrt{64}\) = 8 or -8

-8 rejected

thus length is 8 + 2 = 10, width is 8-2=6

Answer 2

The length is 10 units and width is 6 units.

Length = x+2

Width = x-2

Area = 60

Area = Length × Width

Therefore, (x+2)(x-2) = 60

x²-2x+2x - 4 = 60

Collect like terms

x² = 60+4.

x² = 64.

Therefore, in order to get the value of x, we'll find the square root of 64

x² = 64.

x = ✓64

x = 8

Length =  = x+2 = 8+2 = 10

Width = x-2 = 8-2 = 6

In conclusion, the length is 10 units and width is 6 units.

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Related Questions

Since mode is the most frequently occurring score, it can be determined directly from a frequency distribution or a histogram.
A. True
B. False

Answers

Answer:

A

Step-by-step explanation:

The mode describes the most frequently occurring score or observation in a distribution. The tallest bar would describe the most frequently occurring score. Hence, the mode can be inferred directly from a histogram.

A frequency distribution would have the frequency of the scores or observation on the vertical axis. Hence, the height of the bars can be used to infer which score has a greater frequency.

Hence, the frequency distribution or histogram could be used to directly deduce the mode of a distribution.

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Asia and Addison are saving for a new cell phone. Ava is starting with a $100 adding $5 each week. Addison is starting with $200 adding $4 each week. Write and solve a system that can be used to find out after how many weeks Ava and Addison will have the same amount of money saved.

Answers

Equations

Ava and Addison are saving for a new cell phone.

Ava starts with $100 and adds $5 each week.

Let's call x to the number of weeks, thus the equation to model the amount of money of Ava's is:

A = 100 + 5x

Addison starts with 200 and adds $4 each week, thus the equation of the money he/she has is:

B = 200 + 4x

We are required to find the number of weeks needed for them to have the same amount of money saved, that is:

100 + 5x = 200 + 4x

Subtracting 4x:

100 + 5x - 4x = 200

Subtracting 100:

5x - 4x = 200 - 100

Operating:

x = 100

Ava and Addison will have the same amount of money saved in 100 weeks

Ava will have: 100 + 5(100) = $600

Addison will have: 200 + 4(100) = $600

I need help!!!!!!!!!

I need help!!!!!!!!!

Answers

Answer:

its b4 + 7b3 + 4b2 + b5 + 7b4+ 4b3= b5+8b4+11b3+4b2

Answer:

When multiplying, add the exponents, (example) remember if there is "7b" the exponent is one.

Multiply b^2 * b^3 = b^5  (add the exponent 2 + 3 = 5)

Multiply 7b * b^3 = 7b^4 (the exponent of 7b is one, add 1 + 3 for the exponent to become 4)

Multiply 4 * b^3 = 4b^3 (4 doesn't have a variable, the exponent will be 3)

b^2 * b*2 = b^4 (add exponents)

7b * b^2 = 7b^3 (add the exponents 1 + 2)

4 * b^2 = 4b^2

              b^2             +               7b             +        4

b^3           b^5              +           7b^4            +   4b^3

+                                                                                      

b^2           b^4             +           7b^3            + 4b^2

b^5 + 7b^4 + 4b^3 + b^4 + 7b^3 + 4b^2

\(b^5 + 7b^4 + 4b^3 + b^4 + 7b^3 + 4b^2\)

b^5 + 8b^4 + 11b^3 + 4b^2

Which equation can we use to find the length of the side labeled x?

Which equation can we use to find the length of the side labeled x?

Answers

Answer:

  (D)  sIn(30°) = 5/x

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationship between sides and trig functions for a right triangle. Here, the hypotenuse and the side opposite the angle are marked. The relevant relationship is ...

  Sin = Opposite/Hypotenuse

Filling in figure values, we have ...

  sIn(30°) = 5/x

Get it right please.

A zoologist recorded the speed of two cheetahs. Cheetah A ran 17 miles in 8 minutes. Cheetah B ran 56 miles in 20 minutes. Which statement is correct?

Cheetah A has a higher ratio of miles per minute than Cheetah B because 17 over 8 is less than 56 over 20.
Cheetah B has a higher ratio of miles per minute than Cheetah A because 17 over 8 is greater than 56 over 20.
Cheetah B has a higher ratio of miles per minute than Cheetah A because 17 over 8 is less than 56 over 20.
Both cheetahs have the same ratio of miles per minute.

Answers

The answer would be C - "Cheetah B has a higher ratio of miles per minute than Cheetah A because 17 over 8 is less than 56 over 20."

also "get it right please" ?! how rude

For my option I choose b or d can I please get some help

For my option I choose b or d can I please get some help

Answers

\(FV\text{ = 2500(1+0}.03)^4\text{ (option A)}\)Explanation:

Amount invested = $2500

rate = 3% = 0.03

n = number of times compounded

n = annually = 1

time = 4 years

To get the future value after 4 years, we will apply the compund interest formula:

\(\begin{gathered} FV\text{ = P(1 +}\frac{r}{n})^{nt} \\ \text{where FV = future value} \\ P\text{ = principal = 2500, r = rate, t = time} \\ n\text{ = number of times compounded} \end{gathered}\)

substitute the values into the formula:

\(\begin{gathered} FV\text{ = 2500(1 + }\frac{0.03}{1})^{1\times4} \\ FV\text{ = 2500(1+0}.03)^4 \\ \\ FV\text{ = 2500(1+0}.03)^4\text{ (option A)} \end{gathered}\)

geometry! please help gracias!

geometry! please help gracias!

Answers

The equation of the conic represents a circle with an area of 36π square units.

What kind of conic does a quadratic equation represent?

In this problem we find the equation of the conic in general form, on which we need to determine what kind of conic it represents. This can be done by finding the standard form of the equation by means of algebra properties, using a strategy known as completing the square. The quadratic equation in general form is described by the quadratic equations of the form:

A · x² + B · y² + C · x + D · y + E · x · y + F = 0

Now we proceed to find the standard form of the equation. First, write the equation in standard form:

x² + y² - 3 · x + 6 · y = 7 · x + 2

x² + y² - 10 · x + 6 · y - 2 = 0

Second, complete the square:

(x² - 10 · x + 25) + (y² + 6 · y + 9) = 2 + 25 + 9

(x - 5)² + (y + 3)² = 36

The standard form of the quadratic equation indicates the equation of a circle with a diameter of 12 units and a center at (h, k) = (5, - 3). The area of the circle is calculated below:

A = 0.25π · D²

Where D is the diameter of the circle, in units.

A = 0.25π · 12²

A = 36π

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Evaluate f(x)=−4ex−2−4 for x=4. round to the nearest 4 decimal

Answers

Answer:

25.2

Step-by-step explanation:

I'll assume you wrote:

\(f(x) = 4e^{x-2} - 4\)

So when x = 4:

\(4e^{4-2} - 4 = 4e^2 - 4\) ≅ \(4\cdot 7.3 - 4 = 25.2\)

The temperature in a hotel is 21 °C.
The temperature in the hotel is 26,7°C warmer than at the top of the mountain.
The temperature at the top of the mountain is 3.2°C colder than at the bottom of the mountain.
Work out the temperature at the bottom of the mountain.

Answers

The temperature at the bottom of the mountain is 50.9 °C.

Let's work through the given information step by step to find the temperature at the bottom of the mountain.

The temperature in the hotel is 21 °C.

The temperature in the hotel is 26.7 °C warmer than at the top of the mountain.

Let's denote the temperature at the top of the mountain as T_top.

So, the temperature in the hotel can be expressed as T_top + 26.7 °C.

The temperature at the top of the mountain is 3.2 °C colder than at the bottom of the mountain.

Let's denote the temperature at the bottom of the mountain as T_bottom.

So, the temperature at the top of the mountain can be expressed as T_bottom - 3.2 °C.

Now, let's combine the information we have:

T_top + 26.7 °C = T_bottom - 3.2 °C

To find the temperature at the bottom of the mountain (T_bottom), we need to isolate it on one side of the equation. Let's do the calculations:

T_bottom = T_top + 26.7 °C + 3.2 °C

T_bottom = T_top + 29.9 °C

Since we know that the temperature in the hotel is 21 °C, we can substitute T_top with 21 °C:

T_bottom = 21 °C + 29.9 °C

T_bottom = 50.9 °C

Therefore, the temperature at the bottom of the mountain is 50.9 °C.

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What is the constant of proportionality in the equation y=5/4x

Answers

The constant of proportionality in the equation is 5/4

What is constant of proportionality?

The constant connecting two given numbers in what is known in a proportional relationship is the constant of proportionality.

The constant of proportionality may also be referred to as the constant ratio, constant rate, unit rate, constant of variation, or even the rate of change.

In the problem, y = 5/4x

The constant term 5/4 as used in the equation is used t multiply the input x values to get the out put y values

The term helps in relating x to y

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please only right answers

please only right answers

Answers

Answer:

what is the full question? 4 units left or right or?

the cost of 7 calculator is rs. 1750 what will be the cost of 12 calculator​

Answers

Answer:

See below.

Step-by-step explanation:

You have to find the unit price.

1750/7=250

Now, multiply the unit price by the desired amount.

250*12=3000

So, 12 calculators will cost 3,000.

-hope it helps

If John solved the equation x² - 10x +8=0 by completing the square, one of the steps in his process would
be:
(z-5)² = 17
(z+4)² =10z+16
(z+4)² =10z
(2-5)² = -8

Answers

If John solved the equation x² - 10x + 8 = 0 by completing the square, one of the steps in his process would be: A. (x - 5)² = 17.

What is a quadratic equation?

In Mathematics, the standard form of a quadratic equation is represented by the following equation;

ax² + bx + c = 0

Next, we would solve the given quadratic equation by using the completing the square method;

x² - 10x + 8 = 0

x² - 10x = -8

In order to complete the square, we would have to add (half the coefficient of the x-term)² to both sides of the quadratic equation as follows:

x² - 10x + (-10/2)² = 8 + (-10/2)²

x² - 10x + 25 = -8 + 25

x² - 10x + 25 = 17

By simplifying, we have;

(x - 5)² = 17

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Normal distribution has a mean of 98 and standard deviation of 6. What is P(x > 104)

Answers

The value οf P(x > 104) is 0.1587 οr apprοximately 15.87%.

What is Prοbability?

Prοbability is the study οf the chances οf οccurrence οf a result, which are οbtained by the ratiο between favοrable cases and pοssible cases.

Tο find the prοbability οf P(x > 104) fοr a nοrmal distributiοn with mean οf 98 and standard deviatiοn οf 6, we need tο standardize the value οf 104 using the fοrmula:

z = (x - μ) / σ

where z is the standard scοre, x is the value we want tο find the prοbability fοr, μ is the mean οf the distributiοn and σ is the standard deviatiοn.

Plugging in the values, we get:

z = (104 - 98) / 6 = 1

Nοw we need tο find the area tο the right οf this value οn the standard nοrmal distributiοn table οr calculatοr.

Using a standard nοrmal distributiοn table οr calculatοr, we find that the area tο the right οf z = 1 is 0.1587.

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which inequality statement describes the two numbers on a number line -7 and a number 12 units to the right of -7

Answers

Answer:2

Step-by-step explanation:

write y-5=(4/3)(x-6) into a point intercept form

Answers

The equation y - 5 = (4/3)(x - 6) can be written in point-intercept form as y = (4/3)x - 3, where the slope is 4/3 and the y-intercept is -3.

The point-slope form of a line is y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line. The point-slope form of a line can be converted to the slope-intercept form of a line, y = mx + b, where b is the y-intercept.

The equation y - 5 = (4/3)(x - 6) can be rearranged into the point-slope form of a line by isolating the y-term and simplifying: y - 5 = (4/3)(x - 6)y - 5 = (4/3)x - 8y = (4/3)x - 3

Now, we have the point-slope form of the line with slope 4/3 and y-intercept -3.

To convert this to the slope-intercept form of a line, we simply rearrange the equation to solve for y:y = (4/3)x - 3 This is the slope-intercept form of the line, where the slope is 4/3 and the y-intercept is -3.

Thus, the equation y - 5 = (4/3)(x - 6) can be written in point-intercept form as y = (4/3)x - 3, where the slope is 4/3 and the y-intercept is -3.

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Professional basketball coaches may coach at one of three levels: Assistant, Associate, or Head. It is possible to transition from any of these levels (states) to another. Each of these three states is transient because once someone leaves coaching at any level they never return (at least according to our model). On average, annual salary for head coaches is $104,485, for associates is $62,993, and for assistants is $41,389. Using our P matrix, we have solved to find the fundamental matrix (we have called it the (I-Q) inverse matrix): Assist Assoc Head Assist 6 4 2 Assoc 2 6 6 Head 1 2 10 For someone who is a head coach - what is their expected income for the remainder of their professional coaching career?

Answers

Answer:

For someone who is a head coach - their expected income for the remainder of their professional coaching career will be

Expected income = 1×$41,389 + 2×$62,993 + 10×$104,485

Expected income = $1,212,225

Step-by-step explanation:

Professional basketball coaches may coach at one of three levels:

AssistantAssociateHead

On average, the annual salary is given by

Assistant = $41,389Associate = $62,993Head = $104,485

Using our P matrix, we have solved to find the fundamental matrix (we have called it the (I-Q) inverse matrix):

                      Assistant      Associate     Head

Assistant              6                     4              2

Associate             2                     6              6        

Head                    1                      2              10

For someone who is a head coach - what is their expected income for the remainder of their professional coaching career?

As per the given P matrix, for someone who is a head coach will be:

Assistant = 1 time

Associate = 2 times

Head = 10 times

Therefore, the expected income will be,

Expected income = 1×$41,389 + 2×$62,993 + 10×$104,485

Expected income = $1,212,225

X=91° and y=42° what is z?

X=91 and y=42 what is z?

Answers

Here, we just need to add x and y and subtract it from 180.

x + y = 91 + 42 = 133.

180 - 133 = 47.

Hence, z = 47 degrees.

Answer:

47°

Step-by-step explanation:

straight line = 180° we remove the angles x and y and find z

180 - 91 - 42 =

47°

What is the value of x?
Enter your answer in the box
672
X=
D
60°
х
Basic
45°
А.
B

What is the value of x?Enter your answer in the box672X=D60Basic45.B

Answers

9514 1404 393

Answer:

  x = 3

Step-by-step explanation:

It is convenient to remember the ratios of side lengths of these "special triangles."

The side ratios of ΔABC are 1 : 1 : √2, so BC = AC/√2 = 6.

The side ratios of ΔBCD are 1 : √3 : 2, so BD = BC/2 = 6/2 = 3.

The value of x is 3.

(20c + 15r + 75p + 50e) - (12c + 22r + 65p + 70e)

Answers

Answer:

Step-by-step explanation:

in order to simplify this equation we are going to have to subtract 12c from 20c, 22r from 15r, 65p from 75p, and 70e from 50e:

20c - 12c = 8c

15r - 22r = -7r

75p - 65p = 10p

70e - 50e = -20e

Now we are going to put all the answers into the equation again:

8c + (-7r) + 10p + (-20e)

Will these side lengths make a right triangle?
7 cm, 14 cm, 16 cm

Answers

Answer:

yes because they are smaller two sides than the largest one

Yes all you have to do is add the to smaller numbers and if it is grater it’s a yes

can you please help me
3. To find the perimeter of a rectangle, use the equation , where P is the perimeter, l is the length and w is the width of the rectangle.
(a) A rectangular garden has a perimeter of 40 yd and a width of 5 yd. Use the equation and the replacement set to find the length of the garden. Show your work.
(b) A rectangular table top has a perimeter of 18.4 ft and a length of 6.75 ft. Use the equation and the replacement set to find the width of the table top. Show your work.

Answers

Answer:

a) 15yd

b)2.45ft

Step-by-step explanation:

P = perimeter, l=length and w = width of the rectangle

P = 2l+2w

a) 40 = 2l+2(5)

40 = 2l+10

30=2l

15=l

b) 18.4 = 2(6.75) + 2w

18.4 = 13.5+2w

4.9=2w

2.45=w

100 POINTS
What is the value of the expression when a = 5 and b = -3?
SHOW YOUR WORK

Answers

Answer:

31

Step-by-step explanation:

no promblem

find the area of a rectangle with a length of 10 inches and a width of 4 inches

Answers

Answer:

40 in²

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

Formula for area of a rectangle with dimensions l and w is:

A = lw

Substitute 10 for l and 4 for w:

A = 10*4A = 40 in²

Question Help
Challenge Last month, Dani's neighbors paid her to take care of their fish when they went on
vacation. She spent $4 of her earnings on an afternoon snack and $12 on a new book. Afterward,
she had at most $7 left. How can you best describe how much Dani's neighbors paid her?
Select the correct choice below and fill in the answer box to complete your choice

Answers

Answer:

They paid her $23 at most

Step-by-step explanation: 4+12+7=23

A bouquet of flowers contains 46 flowers and half of them are roses. How many of the flowers are not roses? *
can someboby plz help

Answers

Answer:

23

Step-by-step explanation:

Select the line that represents y=3x

Select the line that represents y=3x

Answers

Answer:

The first one is correct

Step-by-step explanation:

hope it helps ^^

Answer:

Graph C

Is the correct.

MARK BRAINLIEST (RELOAD AND CLICK THE CROWN)

Your town has a park at points (-9,-9), (-3,-9) and (-6,-5). What is the area of the park?

Answers

The area of the park is 12 square units.

To find the area of the park, we can use the Shoelace Formula (also known as Gauss's area formula). This formula allows us to calculate the area of any polygon given the coordinates of its vertices.

The Shoelace Formula states that if we have the coordinates of the vertices of a polygon in counterclockwise order (x₁, y₁), (x₂, y₂), ..., (xn, yn), then the area (A) of the polygon is given by:

A = 1/2 × |(x₁y₂ + x₂y₃ + ... + xn-1yn + xny₁) - (y₁x₂ + y₂x₃ + ... + yn-1xn + ynx₁)|

In our case, the coordinates of the park's vertices are (-9, -9), (-3, -9), and (-6, -5). Let's calculate the area using the Shoelace Formula:

A = 1/2 × |(-9 × -9 + -3 × -5 + -6 * -9) - (-9 × -3 + -9 × -6 + -5 × -9)|

Simplifying further:

A = 1/2 × |(81 + 15 + 54) - (27 + 54 + 45)|

A = 1/2 × |150 - 126|

A = 1/2 × |24|

A = 12

Therefore, the area of the park is 12 square units.

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Answer:

12 square units

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

Plot the given vertices and connect.

See attached.

Then add the height CD.

The base is AB, with the length:

AB = - 3 - (- 9) = -3 + 9 = 6

The height is CD, with length:

CD = -5 - (- 9) = - 5 + 9 = 4

Find the area using equation:

A = bh/2A = 6*4/2A = 12
Your town has a park at points (-9,-9), (-3,-9) and (-6,-5). What is the area of the park?

When her first baby was born, a mom started investing $200 each month into a college fund earning 6% compounded monthly, how much will be available when the child turns 18 years?

Answers

FV = $200 x [(1 + 0.06/12)^(12*18) - 1] / (0.06/12)
FV = $94,219.55

Therefore, when the child turns 18 years old, there will be approximately $94,219.55 available in the college fund

PLZ HELP GIVING BRAINLIEST TO FIRST ANSWER AND 100 POINTS



Sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. After collecting only three shark’s teeth, Sarah decides to share the opportunity with her friend John. Sarah can find shark teeth twice as fast as John, but she can earn even more money with his help.

Sarah can use the expression 5(2j + 3 + j) to represent the amount of money she can earn.

Answers

Answer:

ACTUALLY I HAD MADE A PPT IN PREZI THE ANSWER IS THERE PLS CHECK THERE : JUST SEARCH THIS QUESTION IN PREZI U WILL GET IT (I PROMISE)

HOPE IT HELPS

IF IT HELPS PLS MARKE AS BRAINLIEST ! :)

Step-by-step explanation:

Answer:

im answering so other guy gets brainliest

Step-by-step explanation:

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