El área de un rectángulo es 600 cm2 . Calcula las dimensiones del rectángulo sabiendo que su perímetro es 100 metros.

Answers

Answer 1

Answer:

Step-by-step explanation:

The area of ​​a rectangle is 600 cm2. Calculate the dimensions of the rectangle knowing that its perimeter is 100 meters.

The formula for the area of a triangle =

Length × Width = 600 cm²

LW = 600

W = 600/L

Perimeter of a rectangle = 2L + 2W = 100m

2L + 2W = 100

we substitute

2L + 2(600/L ) = 100

2L + 1200/L = 100

Multiple all through by L

2L² + 1200 = 100L

2L² - 100L + 1200 = 0

We factorise

2L² - 60L - 40L + 1200= 0

Answer 2

Las dimensiones del rectángulo serían:

Longitud = 30m

Ancho = 20m

Halla el largo y el ancho

Dado que,

Área del rectángulo = 600[tex]m^2[/tex]

Sabemos,

Área del rectángulo = l × b

entonces,

l × b = 600[tex]m^2[/tex]  

⇒ l = 600/b ...(i)

A continuación, tenemos,

Perímetro = 100m

Lo sabemos,

Perímetro del rectángulo = 2(l + b)

⇒ 100 = 2(l + b)

al poner (i), tenemos,

⇒ [tex]100/2 = (600/b + b)[/tex]

⇒ [tex](600 + b^2)/b = 50[/tex]

al resolver esto, obtenemos;

[tex]b^2 + 600 = 50b[/tex]

⇒ [tex]b^2 - 50b + 600 = 0[/tex]

⇒ [tex]b^2 - 30b - 20b + 600= 0[/tex]

⇒ [tex]b(b - 30) - 20(b - 30) = 0[/tex]

⇒ [tex](b - 20) (b - 30)[/tex]

∵ [tex]b = 20 m, b = 30m[/tex]

poniendo el valor de b, podemos encontrar:

[tex]l = 600/20[/tex]

∵ [tex]l = 30 m[/tex]

∵ Longitud = 30m

Ancho = 20m

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Liz's heart beat 285 times in 3 minutes. Her heart beat
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Answer:

95

Step-by-step explanation:

285 divided by 3 is 95

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Step-by-step explanation:

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First put these in order from least to greatest.

1,2,2,4,8,9,9 is the correct order
Range is when we subtract the greatest value of our data set from the smallest so in our case it would be 9-1 which leaves us with our answer that 8 is your range.

Use the net to find the surface area of the rectangular prism

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Answer:

52

Step-by-step explanation:

Martha went shopping and wants to buy the following items.

A dress for $85.00
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If she uses the coupon, what will be her total before tax?

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Answer:

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Step-by-step explanation:

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Helppp!!!!
Look at this graph what is the equation if the line in slope intercept form

Answers

Answer:

y =(2/3)x + 80

Step-by-step explanation:

to get the slope.. change in y/change in x  in two points.

so use the points (0,80) and (30,100) and you get 2/3

you know the intercept, where x=0 (0,80) therefore the equation is 2/3x + 80

which of the following graphs does not represent a function of x?

PLEASE HELP ILL MARK BRAINLY IF CORRECT

Answers

i believe that it is graph 3 :) if it’s not right let me know.

Answer:

It's Graph 1 because it passes the Y axis two times

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Step-by-step explanation:

if each of the left has one right its a function if b had 12 and 3 it would not be a function so its a function because b and a has 3.

What is the height, x, of the rectangular prism, if the volume is 750 cubic centimeters?

Answers

Answer:

6

Step-by-step explanation:

25x5=125

750 divided by 125 =6

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Sammy uses 7.6 pints of blue paint and white paint to paint her bedroom walls. 3 4 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

Answers

Answer:

8 pints

Step-by-step explanation:

twins Denise and Deandre always flip a coin to describe who gets to ride in the front seat to school. during a 6-week period (30 school days), how many times does Denise likely get the front seat ?

Answers

15 because it is a 50/50 chance each coin flip meaning you spilt 30 in half making it 30

A statement is shown. ​"The square root of x is a number that is non-terminating and non-repeating." ​Select all of the values of x that make the statement true. A:x=1 B: x=8 C: x=25 D: x=81 E: x=125

Answers

Answer:

The values of 'x' they make the statement true are;

B; x = 8

E; x = 125

Step-by-step explanation:

The given criteria for 'x' = "The square root of x is a number that is non-terminating and non-repeating"

The terms non-terminating and non-repeating numbers are used to describe the characteristics of the decimal part of numbers

A non-terminating number is a form of decimal number that has an infinite number of digits out of which no part is endlessly repeating. This type of decimals are part of irrational numbers that cannot be presented in a fraction format

From the options, we have;

A: x = 1, √x = √1 = 1 No fraction, 1 ∉ x

B: x = 8, √x = √8 = 2·√2  Is non-repeating, non-terminating, 8 ∈ x

C: x = 25, √x = √25 = 5 No fraction, 25 ∉ x

D; x = 81, √x = √(81) = 9 ∉ x

E; x = 125, √125 = 5·√5 Is non-repeating, non-terminating, 125 ∈ x.

giving brainliest if correct don't answer just for points

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Answer:

Step-by-step explanation:

3x2 + 5x-9 = 0
Quadratic formula
A=
B=
C=

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Answer:

the answer are

a = 3, b

= 5 and

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Answer:

The answer is in the photo below! :D

Step-by-step explanation:

Hope this helped!

-LEI

Evaluate 1/2y+1/7 when y=1/5 .

Answers

Answer:

17/70 ([tex]\frac{17}{70}[/tex])

Find an equation for the perpendicular bisector of the line segment whose endpoints
are (3, 1) and (-9, -5).


Help plz

Answers

Answer:

y= -2x -8

Step-by-step explanation:

I will be writing the equation of the perpendicular bisector in the slope-intercept form which is y=mx +c, where m is the gradient and c is the y-intercept.

A perpendicular bisector is a line that cuts through the other line perpendicularly (at 90°) and into 2 equal parts (and thus passes through the midpoint of the line).

Let's find the gradient of the given line.

[tex]\boxed{gradient = \frac{y1 -y 2}{x1 - x2} }[/tex]

Gradient of given line

[tex] = \frac{1 - ( - 5)}{3 - ( - 9)} [/tex]

[tex] = \frac{1 + 5}{3 + 9} [/tex]

[tex] = \frac{6}{12} [/tex]

[tex] = \frac{1}{2} [/tex]

The product of the gradients of 2 perpendicular lines is -1.

(½)(gradient of perpendicular bisector)= -1

Gradient of perpendicular bisector

= -1 ÷(½)

= -1(2)

= -2

Substitute m= -2 into the equation:

y= -2x +c

To find the value of c, we need to substitute a pair of coordinates that the line passes through into the equation. Since the perpendicular bisector passes through the midpoint of the given line, let's find the coordinates of the midpoint.

[tex]\boxed{midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2}) }[/tex]

Midpoint of given line

[tex] = ( \frac{3 - 9}{2} , \frac{1 - 5}{2} )[/tex]

[tex] = ( \frac{ - 6}{2} , \frac{ - 4}{2} )[/tex]

[tex] = ( - 3 , - 2)[/tex]

Substituting (-3, -2) into the equation:

-2= -2(-3) +c

-2= 6 +c

c= -2 -6 (-6 on both sides)

c= -8

Thus, the equation of the perpendicular bisector is y= -2x -8.

Help please!!!! Emergency
Will give brainiest, if correct!

What is the y-intercept of the line?

0
1
1/2
-2

Answers

The answer is 1
you are welcome :))
The answer will be one!!

What is (4×-5)^2 in polynomial form

Answers

Answer:

[tex]4x^2-20x+25[/tex]

Step-by-step explanation:

We start with this expression.

[tex](4x - 5)^2[/tex]

When an expression inside parentheses are squared, we have to take two of the expression and multiply them together. To do this, we need to multiply each part of one expression and multiply it with every part in the other expression.

This means that [tex](4x - 5) (4x - 5)[/tex] would become...

[tex](4x)(4x) = 4x^2\\(-5)(4x) = -20x\\(-5) (-5) = 25[/tex]

Now, we simply need to put all of the terms into one expression.

[tex]4x^2-20x+25[/tex]

What is the value of this expression?

7 + 4 × (6 − 2)2

Answers

Answer: 39
Explanation:
Use PEMDAS
First is parentheses
7 + 4 * (4) 2
Next is multiplication
7 + 16 * 2
Multiply 16 by 2 to get 32
Then add
32 + 7 = 39
Therefore, answer is 39
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Round to the nearest tenth.

Answers

Answer:

42.4 m²

Step-by-step explanation:

The formula for the Area of this triangle = 1/2 absinθ

a = 8m

b = 12m

θ = 62°

The area of the triangle =

1/2 × 8m × 12m × sin 62

= 42.38 m²

Approximately = 42.4 m²

Circle M has a radius of length 5 inches. A tangent is drawn from exterior point Q to point N on circle M as shown. If QN= 11 inches, determine the measure of

Answers

Answer:

look at the box did you see it

Answer:

I hope you are wanting the measure of QM

QM = 12.08 in

Step-by-step explanation:

Because a tangent to a radius forms a 90° angle, use the Pythagorean theorem:

QM² = MN² + QN² = 5² + 11² = 25 + 121 = 146

QM = √146 = 12.08 in

what is 200 divided by 3

Answers

Answer:

66.6666666667

Step-by-step explanation:

I osnt know how to explain it but that's the answer sorry

The solution of the expression divide 200 by 3 is,

⇒ 66.67

We have to given that,

To divide 200 by 3

We have to divide the number as,

⇒ 200 ÷ 3

3 ) 200 ( 66.6

   - 18

   ------

       20

      - 18

      ------

          20

        - 18

        ------

            2

Therefore, The solution of the expression divide 200 by 3 is,

⇒ 66.67

Learn more about the divide visit:

https://brainly.com/question/28119824

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The amount of fence Farmer Thomas needs around her vegetable garden can be modeled by the formula:

V = 8w + 3l
where V = the perimeter of the vegetable garden; w = the width; l = the length

Which formula best represents l in terms of w and V ?


A- l=v-8w-3
B- l=3v-8w
C- l=v-8w/3
D- l=v-8w+3

Answers

V=8w+3l
V-8w/3 =l
Ans. C

9. Which of the following fractions is equivalent to 1.68

Answers

Answer:

could you please put down the answer choices??? cant answer unless I know what fractions need to be picked

Step-by-step explanation:

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Answers

Answer:

X equals 6°.

Step-by-step explanation:

There is a geometry rule that states the outer angle of a triangle's interior angle is equivalent to the sum of the remaining two interior angles of the triangle. Following this rule, you can get that (6x + 8) + (5x + 8) = 82° ⇒ 11x + 16 = 82° ⇒ 11x = 66° ⇒ x = 6°.

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Answer: Function 1 has a greater rate of change than function two.

Function one is better then function two

What is the answer to 10.50 X 8.5 pls help :\

Answers

Answer:

89.25

Step-by-step explanation:

If you do 10.50

              x 8.5 you get 89.25.

Answer:

89.25

Step-by-step explanation:

10.5 x 8.5 on a calculator.

HELP ME PLEASE! I NEED TO PAST THIS TEST!!!
The data from a survey on the academic degrees earned by students in the United States in 2009 is shown below.

Degree Male
(in thousands) Female
(in thousands) Marginal
Totals
(in thousands)
Associate 298 489 787
Bachelor 685 916 1,601
Master 260 397 657
Professional 47 45 92
Doctorate 32 35 67
Marginal
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(in thousands) 1,322 1,882 3,204

About how many students were awarded a bachelor’s degree in 2009?

A.
916,000

B.
685,000

C.
1,601,000

D.
1,322,000

Answers

Answer:

C

Step-by-step explanation:

Answer:

Answer is C

Step-by-step explanation:

I just took the test and I think you might not need this but to anybody else who needs the answer its C for sure 1,601,000.

This table represents Lola's check register. Her checking account had a balance of $1,685.25 on January 1. Use the information on the check register to determine the balance of Lola's checking account after the transaction on February 2 Enter your answer in the box​

Answers

Answer:

1327.01

Step-by-step explanation:

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