Mathematics High School

The length of a rectangle can be represented by the expression (2 - 1) and the width can be
represented as (x + 3). The area of the rectangle is 12 square feet. Set up an equation that
could model this information, Solve the quadratic equation to determine a possible value for x,

PLS HELP ME AND IF YOU CAN SHOW HOW U GOT THE ANSWER IF NOT THATS OKAY!!! ILL ALSO MARK YOU BRANLIEST IF YOU HELPED ME!!! <333

Answers

Answer 1

Answer:

Step-by-step explanation:

The length is (x-1), not (2-1).

area = (x-1)(x+3) = 12 ft²

x²+2x-3 = 12

x²+2x-15 = 0

(x+5)(x-3) = 0

x = -5, 3

-5 is an extraneous solution, so x=3.

Length = x-1 = 2 feet

Width = x+3 = 6 feet

Related Questions

9. DOG WALKING Evan, a dog walker, charges $3 every block that he walks a dog. He also charges a $5 pick up fee when he comes to get a dog. How many blocks will he need to walk a dog in order to earn $26? Write an equation and solve the equation.

Answers

Answer:

Evan will have to walk 7 blocks

Step-by-step explanation:

Evan will have to walk 7 blocks because he gets $5 from picking up the dog, so subtract 5 from 26 to get 21. Next, you want to divide 21 by 3 to get 7 because $3 a block and you need to find how many blocks he needs to do.

Diego runs for 32 seconds at -8.1 meters per seconds. What is his finish point?

Answers

Answer:

i thinks is -40.1

Step-by-step explanation:

If pears cost $0.65, how many pears could you buy if you have $5.20 to spend? Write the equation you would use to answer the question. also, how was you alls day?

Answers

Answer:

0.65x = 5.20, 8 pears

Step-by-step explanation:

We put x beside 0.65 because that is the unknown number of pears we can buy with $5.20. To find out how many pears you could buy, we just solve for x. So let's do it!

0.65x = 5.20

x = 8

8 pears

Hope that helps, let me know if you need more help or have questions! :)

Can you guys help me

Answers

Answer: the top is 4 and the | is 4 too. The other __ is 8 because 12 - 4 is 8. And the final | is 4 because it’s 8/2

Step-by-step explanation:

Help me solve this problem please

Answers

It’s only a vertical angle

"Expand the brackets and simplify" (please i need help asap)

Answers

ok, b)

you can times anything inside bracket by 8. so, 8r -40 + 12

You can simplify to 8r - 28.

You can rearrange it to 6a + 12a -12/3 -15/3

= 18a - 27/3

A sport bag used to cost $40, then the store decides to change the cost to $52. What is the mark up? Write your answer like this 00% but instead of zeros, put the percent you found.

Answers

Answer: increased by 30%

Step-by-step explanation:

40*0.3=12 and 40+12= $52

In Triangle PQR, p = 36 cm, q = 21 cm and r=17 cm. Find the measure of ZQ to the
nearest 10th of a degree.

Answers

Answer:

20.8

Step-by-step explanation:

If your using delta math ..

Answer:

20.8

Step-by-step explanation:

delta

HELP ASAP!!!!! A circle is shown. Secant A D and tangent E D intersect at point D outside of the circle. Secant A D intersects the circle at point B. The length of A B is a, the length of B D is 10, and the length of D E is 12.
Which equation results from applying the secant and tangent segment theorem to the figure?

12(a + 12) = 102
10 + 12 = a2
10(a + 10) = 122
10(12) = a2

Answers

Answer:

10(a + 10) = 12 2

Applying the secant-tangent segment theorem, the equation that will result using the figure given is: C. 10(a + 10) = 12².

What is the Secant-tangent Segment Theorem?

The secant-tangent segment theorem states that if a tangent and a secant intersect at a point outside a circle, then the square of the measure of the products of the secant segment and its external secant segment equals the square of the measure of the tangent segment.

Thus, using the figure given, the equation that results from applying the secant-tangent segment theorem would be: C. 10(a + 10) = 12²

Learn more about the secant-tangent segment theorem on:

https://brainly.com/question/26826991

#SPJ2

( 4,2 ) dialated by a scale of 2

Answers

(4,2) —-> (8,4)
Answer: (8,4)

I just want the coordinates, thanks :)

Answers

0,1 and 1,4
youre welcome !!

Answer:

(0,1) and (1,4)

Step-by-step explanation:

If x/5 = 4/15, what is the value of x? Please hurry and answer!!! In a test!!!!

Answers

Answer:

x= [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

(✿◡‿◡) <-- she helped u on your test, the least you can do is give her brainliest

Expand "6y" in algebra

Answers

Answer:

6 x y

Step-by-step explanation:

Expanded

Or add y 6 times

y + y + y + y + y + y

Answer:

Step-by-step explanation:

y + y + y + y + y + y

Hope that helps!

Lupe and her friends spent $20 on snack mix and water. They bought x bags of snack mix and y bottles of water. They bought a total of 11 items. How many bags of snack mix did they buy?

Answers

Answer:

6 bags of snack mix

Step-by-step explanation:

x bags of snack mix

y bottles of water

The equations in the question is given as;

20.00 = 2.50x + 1.00y (i)

11 = x + y (ii)

From eqn (ii);

11 - y = x

substitute the value of x in eqn (i);

20.00 = 2.50(11 - y) + 1.00y

20.00 = 27.5 - 2.50y + 1.00y

20.00 - 27.5 = - 1.50 y

- 7.5 = - 1.50 y

y = - 7.5 / (- 1.5) = 5

Since we are interested in the value of x. Substitute the value of y in eqn (ii);

11 = x + 5

x = 11 - 5 = 6

Plz help I’m need help

Answers

I can’t really help you too much with the graphing but what you do with ordered pairs is whatever is the first number (example for point A it’s -2) you go and find it on the horizontal line. Once you find it on the horizontal line you either go up or down the graph by how many units the second number is (4 so you would go up four in the graph) and then you plot the point

here you go, just put dot on it

Please Help!! I will give 50 points and brainliest..
The question is attached below

Answers

Answer:

okey i will help you what is that

How do you think statistics may at times not say something? How can a well-designed study be used to carefully say everything that is important about a population? Is it possible to do so?

Answers

Answer:

While statistics are extremely valuable, they are also notorious for being a means that people use to make false and misleading arguments. Also far too often statistics are obtained by taking a sample from a larger group and assuming the whole group has the same characteristics as the sample.

A sample provides a smaller set of the population for review, that delivers data that is useful to represent the whole population. Surveying a smaller sample, as opposed to the entire population, can save precious time for researchers and offer urgent data.

Step-by-step explanation:

Hope it is helpful.....

Rafael drops a ball from the third-story window. This equation represents the approximate height, h, in meters, of the ball above the ground after it falls for t seconds.

h = -5t² + 45

When is the ball at ground level?

Answers

Answer:

3 seconds is when it will be at ground level.

Step-by-step explanation:

I'll explain it tmr, just reply if you want me to explain.

Can someone pls pls pls pls pls pls answer these question

Answers

Step-by-step explanation:

if you replace n = 1

(2)(7)^(1-1)

= (2)(7⁰)

= 2×1

= 2

if n = 2

(2)(7)^(2-1)

= (2)(7)^(1)

= 2×7

= 14

choice 1

3*3*3*3= 81 is an example of ___

Exponential form

Standard form

Expanded form

Slope-intercept form

Answers

Answer:

expanded I believe or the first one good luck

It is an example of Exponential form

Which of the following expressions is equivalent to (2x)3 ?

Group of answer choices

6x4

2x3

8x3

6x3
btw the numbers on the right are exponents

Answers

Answer:

6x3

Step-by-step explanation:

....................

HELP PLEASE OMGGGGGGGGGGGGG

Answers

Answer:

7x-2+5x-10+4x=180°

16x-12=180

16x=192

x=192/16

x=12

Factor 21x^2 - 37x + 12

Answers

answer: (7x-3)(3x-4), rewrite 37x as 9x-28x and factor out 3x from 21x^2-9x. then factor out 7x-3 and you should be good. i hope this helped!

Find the area of the circle. Round your answer to the nearest hundredth.
2 cm

Answers

Answer:

12.57 if 2cm is the radius,

3.14 if 2cm is the diameter

Step-by-step explanation:

If the radius 2cm

A = πr^2 = π·2^2 ≈ 12.56

If the diameter 2cm

A= πr^2 = π·1^2 ≈ 3.14

What is the total weight, w, of 5 bags of soil?

Answers

Answer:200

Step-by-step explanation: I typed this and got it right

HELP pls if you know this

Answers

Answer:

Step-by-step explanation:

The %5 sales tax on a $1500 tv need asap please and thanks

Answers

Answer:

This would be 75 dollars, or a total of 1575 dollars (the tv with tax)

Step-by-step explanation:

convert 5% to decimal = .05

.05 multiplied by 1500 = 75

75+1500=1575

Answer:

CP=1500

SALES TAX%=5

so, the answer after the calculations would be

$75.00

Hope it helps

Mark me as Brainliest please uwu

solve the equation 16y+ -2=-20

Answers

Answer:

y=-34

Step-by-step explanation:

16y-2=20

+2 +2

16y=-18

-16 -16

y= -34

Your answer must be simplified

X
- > -2
7

Answers

i’m confused could you explain more?

Calculate the number in the middle of 1.5 and 7.1

Answers

Answer: 4.3

7.1 - 1.5 = 5.6

5.6 / 2 = 2.8

1.5 + 2.8 = 4.3 = 7.1 - 2.8

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