The area of a rectangle is 21 meters squared and the length of the rectangle is 1 meter less than double the width find the dimensions of the rectangle ?

Answers

Answer 1

Area = length x width

21 = (2w-1)w

21 = 2w^2 -w

2W^2 - w -21=0

(2w-7 )(W +3)=0
2W-7=0 or w+3=0
W=7/2 or w=-3

Width cannot be negative.
So width is 7/2=3.5
Then the length is 6

Related Questions

52% of what number of 109

Answers

Answer:

209.615384

Step-by-step explanation:

Answer:

if you buy an item at $109 with $52 discounts, you will pay $57 and get 47.71% discount.

Step-by-step explanation:

PLEASE HELP!!

Measure the lengths of the following segments in inches.

Answers

the first on is 12in and the 2nd is 7in Hope this helps :)) mark me brainiest

Please help!!!! I need help woth the select the quadrent or axis where each order pair is located on the coorninate plane

Answers

Answer:

quadrant 11

quadrant 111

quadrant 1V

Step-by-step explanation:

An unfair coin with a probability of tails as 0.55 is tossed 8 times. Find the probability that a tail shows up more than 2 times.

Answers

Answer:

0.9115

Step-by-step explanation:

Using a binomial probability function :

P(x =x) = nCx * p^x * (1 - p)^(n - r)

Probability of success, p = 0.55

1 - p = 1 - 0.55 = 0.45

n = 8

x = 2

P(x > 2 ) = p(x = 3) + p(x = 4) + p(x = 5) + p(x = 6) + p(x = 7) + p(x =8)

To save computation time, we could use the binomial probability calculator :

P(x > 2 ) = 0.9115

I need to do this no silly answers tho I’ll mark ❗️Brainlyist❗️ if answered correctly!!!

Answers

Answer:

that will be 270 ÷ 3 boy.....

Answer:

Step-by-step explanation:

[tex]3x \geqslant 270 \\ x \geqslant \frac{270}{3} \\ x \geqslant 90[/tex]

Find the slope of the line that passes through -3,62 and 93,82

Answers

Answer:

5/24

Step-by-step explanation:

A piece rare worker is paid __

Answers

The worker is paid a fixed rate for each item produced or each action performed

Which statement about f(x) = x^2 + 16x + 3 is true

A. The function has a maximum value of 3
B. The function has a maximum value of 16
C. The function has a minimum value of -8
D. The function has a minimum value of -61

Answers

Answer:

Step-by-step explanation:

Given a quadratic function in standard form

f(x) = ax² + bx + c ( a ≠ 0 )

• If a > 0 then minimum value

• If a < 0 then minimum value

For

f(x) = x² + 16x + 3

a = 1 > 0 then f(x) has a minimum value

The minimum is the value of the y- coordinate of the vertex.

The x- coordinate of the vertex is

[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]

Here a = 1 and b = 16 , then

[tex]x_{vertex}[/tex] = - [tex]\frac{16}{2}[/tex] = - 8

To find the y- coordinate of the vertex, substitute x = - 8 into f(x)

f(- 8) = (- 8)² + 16(- 8) + 3 = 64 - 128 + 3 = - 61

Thus the function has a minimum value of - 61 → D

First to answer gets brainliest

Answers

Answer:

Answer choice three is correct

:) ur welcome!

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
An automobile company manufactures hatchbacks, sedans, and sports cars. The company conducted a magazine survey to determine the demand for its cars in each of these categories. The results of the survey showed that 78% of those polled preferred hatchbacks, 19% voted for sedans, and 3% voted for sports cars.
If the company expects to sell 15,000 cars in a month, it should plan on
of the cars being sedans.

Answers

Can you please take a picture of the question? I can’t see anything

Answer:

2850

Step-by-step explanation:

what’s the equation of the line shown above?

Answers

Answer:

answer is B)y=3x+2

Step-by-step explanation:

here ya go, have a nice day

btw if you can give me brainliest it will help a lot, thanks

how many hours is one quarter of a day?

Answers

Answer:

Step-by-step explanation:

24/4 is 6, making there be six hours in a quarter of a day

Consider the function graphed on the coordinate plane.
When x<6, the function is Blank and Blank
answer choices
Blank 1. linear or nonlinear
Blank 2. increasing or decreasing

Answers

Answer:it is nonlinear and decreasing

Step-by-step explanation:

Find the measure of the angle x. Please help!

Answers

360 - (75 + 75 + 105) = 105

What is the measure of angle x?

Answers

Answer:

x = 47

Step-by-step explanation:

Because the angles of a triangle add up to 180, you can just use subtraction to find out what the missing angle is.

A right rectangular prism has a length of 5 in., a width of 3 in., and a height of 2 in. The dimensions of the prism are tripled.

What is the volume of the enlarged prism?

Enter your answer in the box.

Answers

Answer:

Step-by-step explanation:

math my friend

Answer:

810 in³

Step-by-step explanation:

Took the quiz

A object is moving at a steady speed what will happen if an additional force is applied to the object in the same direction which the object is moving

Answers

Answer:

I’ll never have no idea

Step-by-step explanation:I have no idea

LJKL is a right angle. What are
MLJKM and mZMKL?
M
(12x + 3)^
T6x – 3)°
L
K

HURRY PLSSSS

Answers

Answer:

<MKL=27

<JKM=63n

I have messed up in the pic above it I s 63 not 67

Please help in this

Answers

Explanation is in the file

tinyurl.com/wpazsebu

i need it rn plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

9514 1404 393

Answer:

∠B = ∠C = 138°

∠D = 42°

Step-by-step explanation:

Angles between the parallel bases are supplementary:

∠B = 180° -∠A = 180° -42° = 138°

Right-side angles are the same measure as their mirrors across the line of symmetry.

∠C = ∠B = 138°

∠D = ∠A = 42°

what is b? Explanation and answer please.

Answers

Answer:

b=6

Step-by-step explanation:

line b + 14.5 is parallel to line 20.5

so 20.5= b + 14.5

b=6 when you subtract the 14.5

Nora planted 65 seeds. 80% of them sprouded. How many seeds sprouded

Answers

Answer:

Step-by-step explanation:

80%of65

(80/100)×65

What type of punishment did the police officer give to the air pollution?

Answers

Answer:

Mistm Demeanor I think.. Hope this helps, tell me if it's incorrect!

Step-by-step explanation:

A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.

What is air pollution?

Air pollution means the presence of harmful substances in the air that can cause harm to all living beings.

We have,

Air pollution is not a living being so it can not be punished by a police officer.

A police officer or government authorities can enforce laws and regulations to reduce air pollution to protect all living beings and the environment.

Some of the measures are:

- Setting emissions standards for automobile and related industries

- Promoting the use of clean energy resources.

- Encouraging individuals and entities to adopt sustainable practices

Thus,

A police officer can not punish air pollution but can enforce laws and regulations to protect the environment.

Learn more about air pollution here:

https://brainly.com/question/18951513

#SPJ2

are the ratios 2:3 and 10:18 equivalent

YES OR NO

Answers

Answer:

Step-by-step explanation:

an equivalent ration to 2:3 would be 10:15. because when you simpliy 10:15 the most you can you would get 2:3. where as 10:18 is not equal

Yes they are equivalent

How make minutes are in 2/3 ?

Answers

Answer:

To find 2/3 of an hour first we will divide 1 hour that is 60 minutes into 3 parts. So we will get 20 minutes. So we 2parts out of 3 parts of an hour so we get 20X2=40minutes

Step-by-step explanation:

8
If u =
11i + 7j, v= -7i+ 11j find the dot product of u and v?

Answers

Let's solve for v.

v=−7i+11

Answer:v=−7i+11

Step-by-step explanation: Hope you understand. Hope this help :)

Let's simplify step-by-step.

11i+7j

There are no like terms.

Answer:=11i+7j

Plz help plz
What specific measure of a geometric figure is shown in the image?

A. A 15° angle

B. A 180 mm side length

C. A 165 mm side length

D. A 165° angle

Answers

Answer:

A 165° angle

Step-by-step explanation:

I zoomed in on the picture and it was a 165° angle

Find the value of x.
x-11
x-5
A-8
.
A. 17
B. 20
C. 22
D. 15

Answers

Answer:

the answer is D hope it hleps

In the figure shown below, if line l is parallel to line m, then x =
е l
200
65°
m

Answers

Answer:

115

Step-by-step explanation:

Answer:

Step-by-step explanation:

solve using mental math
3 x 25 - 5

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

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