The length of a rectangle is 5 feet less than its width. If the area of a rectangle is 84 square feet, find its dimensions.

Answers

Answer 1

Answer:

7 x 12

Step-by-step explanation:

[tex]a=l *w[/tex]

[tex]84=l*w\\w=l+5\\[/tex]

these equations we know, so we can use them like this

[tex]84=l*(l+5)\\84=l^2 +5l\\[/tex]

I then plugged this equation into the desmos calculator to get the answer

[tex]l=7[/tex]

we then plug this into a previous equation

[tex]w=l+5\\w=7+5\\w=12[/tex]

to get our answer l=7, w=12


Related Questions

How many sides does a regular n-gon have if the measure of one interior angle is 165?

Answers

The supplement of each interior angle has measure

180° - 165° = 15°

and so

n = 360°/15° = 24

since the exterior angles add up to 360° and are all congruent.

Write an equation in slope-intercept form for the line with slope 8 and y-intercept 9.

Answers

Answer:

y = 8x + 9

Step-by-step explanation:

Slope-intercept form of an equation is a fill-in-the-blank formula for writing an equation of a line. It is in the form:

y = mx + b

where m is the slope and b is the y-intercept (hence the name) In the problem slope is given, fill it in for m, next to the x. Y-intercept is given in the question also, fill it in in place of b.

y = 8x + 9

The distance from the base of the tree to the tip of the shadow is 24 feet.
Sin 20 degrees = 0.3420
Cos 20 degrees = 0.9396
Tan 20 degrees = 0.3639
————————————————————————
Which measurement is closest to the heigh of the tree?
A. 8.2
B. 8.7
C. 22.6
D. 25.54
E. 65.95

Answers

The measurement is closest to height of tree is 8.7

The correct option is (B).

What is trigonometry?

The branch of mathematics concerned with specific functions of angles and their application to calculations.

As the distance between base and tip of tree's shadow is 24 feet

Angle of Elevation is  20 degrees

[tex]tan \theta \; = \frac{P}{B}[/tex]

tan 20 = [tex]\frac{P}{24}[/tex]

0.3639 = [tex]\frac{P}{24}[/tex]

P= 0.3639 *24

P = 8.7336

The measurement is closest to height of tree is 8.7

Learn more about trigonometry here:

https://brainly.com/question/26719838?referrer=searchResults

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A student gives the answer to a probability problem as 6/5. tell why this answer must be incorrect.

Answers

Answer:

Probability of an event must be from 0 to 1.

Here,6/5 is more than 1 i.e. 1.2.

Hence,the answer is incorrect.

The city library has 763,045 books. What is the value of the digit 6 in this
number?


I tried to do this problem but I have to do something like this

Answers

Answer:

The 6 is in the ten-thousands place

Step-by-step explanation:

6 written as a ten-thousand is 60,000

Connor got to the beach at 9:58 A.M. He hunted for seashells, played in the waves, ate lunch, watched the birds dive in the water, and built a sand castle. He left the beach at 5:26 P.M. How long was he at the beach?

Answers

Answer:
7hours 28 minutes
Step-by-step explanation:

Does anybody know this?Find the surface area of the triangular prism the ares of the base is 7.75yd

Answers

Answer:

10.308

Sure hope this helps you

please please please help help help !!

Answers

Answer:

The axis of Symmetry divides a line into two equal halves.

Step-by-step explanation

An easy relation to get this value without plotting a graph is x = –b/2a

Where

a = coefficient of x²

b = coefficient of x

From the Question, We need a symmetry of value ½

The only Option that'll give this value is OPTION D

2x y = 5 2x²

Since its a line, Don't forget to make "y" subject before doing any operation.

y = 2x² + 2x 5

a = 2

b= 2

x = (2)/2(2)

= 2/4

= ½

A person can read 24 pages of a book in 1/3 of an hour. What is this person's reading rate in pages per hour?

48

12

72

8

Answers

Answer:

72

Step-by-step explanation:

If he reads 24 pages in 1/3 of an hour, he reads 3 times as many pages in 1 hour.

3 × 24 pages = 72 pages

Answer: 72

What is the Parent Function?
What Are The Transformations?

Answers

Answer:

Parent function:
[tex]x^2+y^2=r^2[/tex]
General equation:
[tex](x-h)^2+(x-k)^2=r^2[/tex]
Transformations:
Its a circle with a center of (100,60) and a radius of 15

a lawn sprinkler waters a lawn in a circle as shown​

Answers

Part A

I'm assuming you want the area of a circle with radius 17 yards.

We'll use the formula below

A = pi*r^2

A = (22/7)*17^2

A = (22*17^2)/7

A = 6358/7

A = 908  2/7

The sprinkler covers an area of about 908  2/7 square yards.

You'll type 908 in the left-most box

Then for the other two boxes, you'll have 2 up top and 7 down below to represent the fraction 2/7

The number 908  2/7 is a mixed number.

=======================================================

Part B

You mentioned that the radius reduces to 11 yards here. We'll use the same formula as above and pi = 22/7 approximately

A = pi*r^2

A = (22/7)*11^2

A = (22*11^2)/7

A = 2662/7

A = 380  2/7

The sprinklers can water an area of about  380  2/7  square yards.

This value is also a mixed number

380 is the value in the left most box (it's the whole part)

The other two boxes are filled out the same exact way as the previous part above.

Use the stem-and-leaf plot below to match each term with the correct value. (Round to the nearest whole number.)

Answers

Answer:

Step-by-step explanation:

16, 18, 23, 25, 26, 34, 37, 37, 40, 41, 46

( 16 + 18 + 23 + 25 + 26 + 34 + 37 + 37 + 40 + 41 + 46 ) ÷ 11 = 31.181818...

mean ≈ 31

median = 34

mode = 37

does anyone know what 3 x (8+2) x 5 is? i really need it for homework due tomorrow thank you!​

Answers

3(8+2) x 5
3 x 10 x 5
30 x 5
= 150

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. what value of x satisfies this equation? round your answer to the nearest hundredth. the value of x is .

Answers

The values of x in f(x) = 3|x - 2| + 6 when f(x) = 18 are 6 and -2

How to determine the value of x?

The function is given as:

f(x) = 3|x - 2| + 6

The value of f(x) is

f(x) = 18

So, we have:

3|x - 2| + 6 = 18

Subtract 6 from both sides

3|x - 2| = 12

Divide both sides by 3

|x - 2| = 4

Remove the absolute bracket

x - 2 = 4 or x - 2 = -4

Add 2 to both sides

x = 6 or x = -2

Hence, the values of x are 6 and -2

Read more about absolute values at:

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PLEASE HELP!!!

Which of the following is the Best Buy?

1 L for $1.68
0.5 L for $1.29
2 L for $3.40
3 L for $5.07

Answers

Answer:

it's 1 L

Step-by-step explanation:

it's pretty easy just do some multiplication

The answer to your question is is 1. L for 1.68

Nandlal bought 20 dozen notebooks at Rs.156 per dozen.He sold 8 dozens of them at 10% gain and the remaining 12 dozens at 20% gain.What is his gain percent on the whole transaction?

Answers

Answer:

[tex]8(156 \times 1.1) + 12(156 \times 1.2) [/tex]

Which relations are functions?
Choose all answers that are correct:

Answers

Answer:

A. B and D are functions

Step-by-step explanation:

Functions are either one-to-one or many-to one    (x-value --> y value)

C is not a function because   -3  (x) maps to 1 and also to 0 (y).

I WILL GIVE BRAINLIEST FOR CORRECT ANSWER

The graph of the system of equations y= 2x+3 and y= x+5 is shown on the coordinate plane (image included). What is the solution to the system of equations?

Answers

Answer:

A

Step-by-step explanation:

The answer is A because the point intercepts at (2,7), and answer A has the points (2,7) in it's answer.

CON
Enter a range of values for x.
a
a
3x-9⁰ 93°
27
26
[?] Enter

Answers

Answer:

  3° < x < 32.538°

Step-by-step explanation:

The possible values of the angle marked with an x-expression may not be as obvious as they first seem. There is a somewhat complicated interaction between the angle value and the length of the side(s) marked 'a'.

__

We can label the vertices of the figure A through D, clockwise from the bottom.

minimum x

The minimum value of angle ACB (marked 3x-9°) is 0°. That will be its measure when AB +BC = AC, or B lies on line AC. In this case, the value of x is ...

  3x -9° = 0°

  3x = 9° . . . . add 9°

  x = 3° . . . . . divide by 3

maximum x

value of 'a'

The maximum value of angle ACB will be found where both triangles are isosceles: AC ≅ BC ≅ DC. The length of 'a' can be found for that case using the Law of Sines:

  27/sin(93°) = a/sin(43.5°) . . . where (180° -93°)/2 = 43.5° is the base angle

  a = 27×sin(43.5°)/sin(93°) ≈ 18.611

value of 3x -9°

Angle ACB will obey the same Law of Sines requirement. If z represents the base angle in isosceles triangle ABC, then we have ...

  sin(z)/18.611 = sin(180-2z)/26

Recognizing that sin(180-2z) = sin(2z) and using the double-angle formula, we find ...

  sin(z)/18.611 = 2sin(z)cos(z)/26

  sin(z)(1/18.611 -cos(z)/13) = 0 . . . . . subtract the right side, factor

This has solutions that make the factors zero:

  sin(z) = 0   ⇒   z = 0 . . . . . . an extraneous solution in this case

  cos(z) = 13/18.611 ≈ 45.6925°

Then the value of x can be found from ...

  3x -9° = 180° -2z ≈ 88.615°

  x ≈ 3° +(88.615°/3) = 32.538°

_____

Additional comment

In the above, we have shown numerical values for the side lengths and angles in the maximum-x case. The various expressions can be combined to give ...

  3(x -3°) = 180° -2(arccos(13/27×sin(93°)/sin(43.5°)))

  x = 63° -2/3·arccos(13/27·sin(93°)/sin(43.5°))


I need help with this question asap please

Answers

there is no mode in the given data set

What is the area of this figure

Answers

Answer:

105 units²

Step-by-step explanation:

Area of triangle = ½bh

b = 11 + 4

b = 15

A = 2(½15(7))

2 and ½ cancel

A = 15(7)

A = 105 units²

When a figure appears to have depth as you look at it, it is called _____________.
A. perspective
B. solid
C. length
D. net

Answers

Answer:

the answer would b B solid

Step-by-step explanation:

because the figure appears to have depth as you look at it so it is solid.

You roll a 6-sided die.
what is p(even or factor of 45)?
write your answer as a percentage.

Answers

Answer:

p(even or factor of 45) = 100%

Step-by-step explanation:

let S₁ be the set of factors of 45 that are less or equal to 6:

S₁ : {1 , 3 , 5}

let S₂ be the set of the even numbers that are less or equal to 6:

S₂ : {2 , 4 , 6}

S₁ ∪ S₂ = {1 ,2 , 3 , 4 , 5 , 6}

⇒ card(S₁ ∪ S₂) = 6

Then

p(even or factor of 45) = p(S₁ ∪ S₂) = 6/6 = 1

Therefore

p(even or factor of 45) = 100%

nd Distances in the Coordinate Plane
What is the distance between the points (4, 7) and (4,-5)?
0 units
O2 units
O4 units
12 units

Answers

Answer:

12 units

Step-by-step explanation:

(4, 7) and (4, -5)

7-(-5)=12

4-4=0

An ice-cream from a restaurant costs $3 originally. The price is reduced to $2 one weekend. What is the percent change?

Answers

33.3 repeating percent.

A triangle has sides of lengths 16,14 and 50 .is the triangle right angle triangle?​

Answers

Answer:

no

Step-by-step explanation:

using the converse of Pythagoras' identity

If the square on the longest side is equal to the sum of the squares of the other 2 sides, then the triangle is right.

longest side = 50 ⇒ 50² = 2500

16² + 14² = 256 + 196 = 452

since 452 ≠ 2500 then the triangle is not right

❒ Question -:

A triangle has sides of lengths 16,14 and 50. Is the triangle right angle triangle?

❒ Explanation -:

We will solve this question using Pythagoras theorem.

We know,

[tex] \small \boxed{\rm{ c² = a² + b²}}[/tex]

[tex] \small\rm{Where,} [/tex] [tex]\small\sf{ c > a \: and \: c > b}[/tex]

[tex] \small\sf{ 50² = 16² + 14²}[/tex]

[tex]2500 = 256+ 196[/tex]

[tex]2500≠452[/tex]

[tex] \small\bf{ c² ≠ a² + b²}[/tex]

Hence, the triangle is not a right-angled triangle.

Please help with this maze

Answers

Answer:

go down then go right

Step-by-step explanation:

What will be the new function g(c) if f(x) = 2^x is translated 2 units down and
3 units left?

Answers

Answer:

The new function is

[tex]g(x) = {2}^{x + 3} - 2[/tex]

What is 3-eighths times 4 and 3-sixths times 4?

You will be marked Brainliest if you answer this question correctly!
Please help ASAP

Answers

3/8•4= 1.5 one point five 3/6•4=2 two

Answer:

As a fraction it would be 4.5

Step-by-step explanation:

3/4 × 6 = 92 = 4 12 = 4.5

Someone please help me before I frl cry

Answers

Answer:

Equation: 4x = 128

[tex]m\angle 1 = 84\degree[/tex]

[tex]m\angle 2 = 96\degree[/tex]

Step-by-step explanation:

[tex]m\angle 1+ m\angle 2 =180\degree[/tex] (Linear pair angles)

-> (x + 52)° + (3x)° = 180°

-> (4x + 52)° = 180°

-> 4x + 52 = 180

-> 4x = 180 - 52

-> 4x = 128 ( This is the required equation)

-> x = 128/4

-> x = 32

[tex]m\angle 1 = (32+52)\degree = 84\degree[/tex]

[tex]m\angle 2 = (3*32)\degree = 96\degree[/tex]
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