The area of a rectangle is 99yd^2, and the length of the rectangle is 7 wyd more than twice the width. Find the dimensions of the rectangle.

Answers

Answer 1

Law = 99 sq.

L = 2w + 7

---

Law = 99

(2w + 7)w = 99

2ww + 7w = 99

2ww + 7w - 99 = 0

---

the above quadratic equation is in standard form, with a=2, b=7, and c=-99

---

to solve the quadratic equation, plug this:

2 7 -99

the roots of the quadratic are:

-9

5.5

---

the negative root doesn't make sense as a length, so use the positive root:

---

w = 5.5

L = 18

---


Related Questions

Graph the line that passes through the points (−5,1) and (5,−7) and determine the equation of the line.

Answers

Note: this answer assumes that it can be written in point-slope form.

Answer:

Equation: [tex]y - 1 = -\frac{4}{5} (x+5)[/tex]

Graph is attached below.

Step-by-step explanation:

1) First, find the slope of the two lines using the slope formula, [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. Use the x and y values of the two points given and solve:

[tex]\frac{(-7)-(1)}{(5)-(-5)}\\= \frac{-7-1}{5+5}\\= \frac{-8}{10}\\= \frac{-4}{5}[/tex]

Therefore, the slope is [tex]\frac{-4}{5}[/tex].

2) Next, use the point-slope formula [tex]y-y_1 = m(x-x_1)[/tex] to write the equation. The [tex]m[/tex] represents the slope of the line, so substitute [tex]\frac{-4}{5}[/tex] for

[tex]y - (1) = -\frac{4}{5}(x-(-5)\\y - 1 = -\frac{4}{5} (x+5)[/tex]

Therefore, [tex]y - 1 = -\frac{4}{5} (x+5)[/tex] is the equation of the line.

3) To graph the equation, you can just plot the points (-5,1) and (5,-7) and draw a line with arrows passing through them. After all, you only need two points to graph a line. The graph is attached below.

Equation of the line is 5y - 4x + 55 = 0 .

What is two point form?

The equation of a line can be written if two points are known from where it passes. The equation of a line which passes through (x1, y1) and (x2, y2) can be written as:    [tex]y - y1 = \frac{y2 - y1}{x2 - x1} (x - x1)[/tex]

Given,

Line passes through (−5,1) and (5,−7) .

Using two point form,

                                     [tex]y - 1 = \frac{(-7) - 1}{5 - (-5)} (x - (-5))[/tex]

                                  = 10y - 10 = -8x + 80

                                  = 5y - 4x + 55 = 0

Hence, equation of the line is 5y - 4x + 55 = 0 .

To learn more about two point form visit:

https://brainly.com/question/3455295

#SPJ1

what is the value of x​

Answers

x = 180 - 44 - 29 = 107°

Answer:

107°

Step-by-step explanation:

By definition of a triangle, the ∑ of all angles within the triangle = 180°

It is given that two angles measurements are 44 and 29. Set the equation:

180 = 44 + 29 + x

First, simplify. Combine like terms:

180 = (44 + 29) + x

180 = x + 73

Next, isolate the variable, x. Note the equal sign, what you do to one side of the equation, you do to the other. Subtract 73 from both sides of the equation:

180 (-73) = x + 73 (-73)

x = 180 - 73

Subtract:

x = 180 - 73

x = 107

x = 107° is your answer.

~

it doesn’t let me type the bar

Answers

Answer:

Step-by-step explanation:

i² = -1

[tex]\sqrt{-36}=\sqrt{i^{2}*6^{2}} \\\\ = 6i[/tex]

please help lads

i need blaze rods, how do i get them.
(without dying)

Answers

Answer:

Go to the nether

Step-by-step explanation:

Go to the nether and make sure you have a shield and a fire resistance potion  and make sure you have a bow to shoot them while they fly also make sure you have a good sword and armor cuz the nether is dangerous

pleace answer importaint!!!

Answers

Answer: perimeter = 302m

area = 5544m^2

Step-by-step explanation:

perimeter = 2(l + b)

= 2(63 + 88)

= 2 x 151

= 302 m

Area = l x b

= 88 x 63

= 5544 m^2

Hope it helped u,

pls mark as the brainliest

^_^

what is equivalent to 14(2 + 6x) + 20

Answers

Answer:

48+84x

Step-by-step explanation:

Distribute the 14 and add

Answer:

84x+48

Step-by-step explanation:

14(2+6x)+20

28+84x+20

84x+28+20

84x+48

An item on sale costs 30% of the original price. The original price was $83.
Use the ALEKS calculator to find the sale price.


Will Mark brainliest!!!! ASAP
LOTS OF POINTS

Answers

Answer:

This equals 58.10. The difference would be 24.90. Hope that helps :)

Step-by-step explanati

**EXTRA POINTS**

If the point A is translated 5 units up and 10 units to the left, find the location of the resulting point A’ ?

Answers

Answer:

(-5, 6)

Step-by-step explanation:

1 + 5 = 6

5 - 10 = -5

The original point is (5, 1)

Guided Practice


Find the midpoint of the segment with the given endpoints.

S(9, 12) and U(–9, –12)


A.
(10.5, 10.5)


B.
(9, 12)


C.
(0, 0)

Answers

Answer:

i would think its C

Step-by-step explanation:

the other options dont make sense lol

hope this is correct and helps :)

Answer:

c. (0,0)

Step-by-step explanation:

The midpoint between 9 and -9 is 0, because 9 to 0 is 9, and -9 to 0 is 9.

The midpoint between 12 and -12 is 0 as well, because 12 to 0 is 12, -12 to 0 is also 12.

1. What is the slope of the line in the graph below?
A. 1/2
B. 2
C. -1/2
D. -2

Answers

Answer:

2

Step-by-step explanation:

Can someone help me please??

Answers

Slope describes how many texts you send. The y-intercept determines the total for the entire month .

Brainliest pleasseee

Write an equation in point-slope form of the line having the given slope that contains the given point. then graph the line

(dont think u can graph so its okay)

Answers

Answer:

The line of the equation in the point-slope form of the line passing through the point (4, -2) and having slope 2 will be:

[tex]y+2=4(x-4)[/tex]

Please check the attached graph.

Step-by-step explanation:

Given

The slope m = -2The point (4, -2)

Point slope form:

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where

m is the slope of the line(x₁, y₁) is the point

In our case:

m = 4

The point (x₁, y₁) = (4, -2)

substituting the values m = 4 and the point  (x₁, y₁) = (4, -2)  in the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y - (-2) = 4(x-4)[/tex]

[tex]y+2=4(x-4)[/tex]

Thus, the line of the equation in the point-slope form of the line passing through the point (4, -2) and having slope 2 will be:

[tex]y+2=4(x-4)[/tex]

Please check the attached graph.

Options
1.33
3
8
9
Pls help due ASAP
Show workings..

Answers

Answer:

x = 8

Step-by-step explanation:

Since C is the centroid, then

CP = [tex]\frac{1}{3}[/tex] JP , that is

2x + 4 = [tex]\frac{1}{3}[/tex] (8x - 4) ( multiply through by 4 to clear the fraction )

6x + 12 = 8x - 4 ( subtract 8x from both sides )

- 2x + 12 = - 4 ( subtract 12 from both sides )

- 2x = - 16 ( divide both sides by - 2 )

x = 8

JP=3x CP

8x-4= (2x+4)+(2x+4)+(2x+4)
8x-4= 6x+12
8x-6x=12+4
2x=16
x=16/2
x=8

Please help with math

Answers

Answer:

First, third, and fourth one would be the answers.

How do you solve -2+x=-x+2

Answers

Answer:

x=2

Step-by-step explanation:

-2 + x = -x + 2

Isolate the variable

2x = 4

Simplify

x = 2

Answer:

x = 2

Step-by-step explanation:

you want to move the variables to one side, the numbers to the other side.

x = -x+4

then you move the other x

2x = 4

x = 2

Marissa has twice as much money as Frank. Christina has $20 more than Marissa. If Christina has $100, how much money does Marissa have?

Answers

If Christina has 20 more than Marissa, then you can subtract 20 from the amount Christina has.
$100-$20 = $80
Marissa has $80

Answer:

Marissa has $80

Step-by-step explanation:

are you sure its asking for Marissas money or Franks money? but its fine if its Marissa too

Christina: 100

Marissa: 20 less than her

So 100-20=80

And Marissa has $80

Just in case, heres how to find Franks money:

100-20=2x

subtract 20 from both sides

80=2x

divide by 2

40=x

And Frank has $40

I need help with this equation -11(-8×-15) my teacher said that I need to show my work pls help me.​

Answers

First calculate (-8x-15)=120

Then multiply - 11x120

=-1320

What’s the equation for this graph?

Answers

Answer:

y=-1/4x+2

Step-by-step explanation:

y=mx+b

M=slope

B= y intercept

This better? If u seen my last one

Answers

Ya I like the first one better than the second one but both are good

I need help, I dont know how to do this​

Answers

Answer:

C) SSS

Step-by-step explanation:

the 'tic' marks indicate which sides are congruent to each other

C) SSS BECAUSE THE THREE SIDES ARE GIVEN AS EQUAL HOPE IT HELP......... STAY BLESSED........THANK YOU....

2/3 x 6 (Check all that apply
mark you brainlyest

Answers

Answer:

4

Step-by-step explanation:

2/3 * 6

~Rewrite

2/3 * 6/1

~Multiply

12/3

~Simplify

4

Best of Luck!

Answer:

4

Step-by-step explanation:

Ratios for 42 and 54

Answers

Answer:30 and 7

Step-by-step explanation:

Answer:

The ratio is easy to find!

Ratios are:

42:54

42 to 54

42/53

Step-by-step explanation:

            May I have brainliest I'm trying to level up!

                        </3 PureBeauty

During a field trip, 60 students are put into equal-sized groups. Describe two ways to interpret 60 ÷ 5 in this problem *

Answers

Answer:

    [tex]x=12 groups[/tex]

This will give 5 Students each in 12 different equally sized groups

    [tex]x'=5groups[/tex]

This also shows that students can grouped in equal groups of 12 in 5 places

Step-by-step explanation:

From the question we are told that

60 children in equal sized groups

Generally interpreting [tex]60\div 5[/tex] can be mathematically represented as

a)

    [tex]x=\frac{60}{5}[/tex]

    [tex]x=12 groups[/tex]

This will give 5 Students each in 12 different equally sized groups

b)

    [tex]x'=\frac{60}{12}[/tex]

    [tex]x'=5groups[/tex]

This also shows that students can grouped in equal groups of 12 in 5 places

Which value is equivalent to 1 17/20

Answers

Answer:

37/20

Step-by-step explanation:

1/1 -> 20/20

20/20 + 17/20

20 + 17 = 37

so 37/20

There are red and blue marbles in a bowl. There are twice as many blue 20
marbles as red marbles. What expression represents the number of blue
marbles? A) 2b, where b represents the number of blue marbles. B) 2r,
wherer is the number of red marbles C) r+2, wherer is the number of red
marbles D) b2, where b is the number of blue marbles *

Answers

I'm pretty sure its 2r, because you are multiplying the number of red marbles by 2 to get how many blue marbles there are.

A company donated a box of yellow, purple, and green water bottles for a school field day. The box contained 750 yellow water bottles. This represented 30% of the total number of water bottles donated. What was the total number of water bottles donated?

Please help TwT

Answers

Answer:

14

Step-by-step explanation:

Please Help!! A new dirt bike valued at $9000 loses 18% of its value each year. Write a function rule that models the value of the dirt bike.

Answers

Answer:

[tex]y=9000(0.82)^{x}[/tex]

Step-by-step explanation:

General exponential growth/decline equation is given as

[tex]y=ab^{x}[/tex]

where a is initial value and b is growth/decline rate

Here a=9000 and b=18%=(1-0.18)=0.82

A model of the Eiffel Tower is 41 centimeters tall. If the scale model is 1 c m 24 f e e t of the real Eiffel Tower, how tall is the Eiffel Tower? Show your work.

Answers

Answer:

984 feet

Step-by-step explanation:

From the above question

Scale =

1 cm = 24 feet

A model of the Eiffel Tower is 41 centimeters tall.

Hence, how tall the Eiffel Tower ja is calculated as:

1 cm =24 feet

41 cm = x

Cross Multiply

x × 1 cm = 41 cm × 24 feet

x = 41 cm × 24 feet/1 cm

x = 984 feet

Therefore, the Eiffel tower is 984 feet tall

PLEASE HELP I WILL GIVE BRAINLESS CHOICE PLEASE NO GUESSING !!
What is the prime factorization of 150?

02x 3 x 5
02x 3 x 52
02² x 3 x5
02x32x5

Answers

Answer:

the second one

Step-by-step explanation:

the first one equals 30

the second equals 150

the third one equals 60

the fourth one equals 90

meaning that the second one is correct

Paige bought a case of sunflower seeds for her baseball team. The case holds 324 bags of seeds. If the cost of the case was $65.62, how much money did Paige pay for each bag of seeds? Round the answer to the nearest cent.

Answers

Answer:

0.20 $

Step-by-step explanation:

65.62/324

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