The area of a rectangle is x² + 2x -15. If its length is x + 2 units, what is its width?

Answers

Answer 1

Length of the rectangle is 8 units

Step-by-step explanation:

Step 1: Find the length, let width be x.

Area of the rectangle = 48 units

Length = x + 2

⇒ Area = Length × Breadth

48 = x (x + 2)

48 = x² + 2x

x² + 2x - 48 = 0

x² + 8x - 6x + 48 = 0 (Product Sum rule to factorise)

x(x + 8) - 6(x + 8) = 0

(x - 6)(x + 8) = 0

⇒ x = 6, -8 (negative value is neglected)

∴ x = 6

x + 2 = 8


Related Questions

Which of the following people might want to claim EXEMPT on their W-4
form?
• John, who is 20 and expects to earn $12,850 from his internship.
• Stacey, who is 16 and expects to earn $7,500 from her part-time job.
® David, who is 23 and expects to earn $15,000 from his part-time job.
Hannah, who is 25 and expects to earn $55,000 from her full-time job.

Answers

The person that might want to claim exemption on the W-4 form is John who received money from his internship.

When can you claim the exemption when filling out the W-4 form?

This is possible if your income does not derive from:

A salary from a formal job.Unemployment compensation.Money from an employer.

Who can claim the exemption?

John can likely be exempted because he obtained the money from an internship, which is not a formal job.

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A photograph measures 20 cm by 15 cm. A strip of constant width is to be added from each side of the photo, so the area is increased to 750 cm2.
Find the width of the cut.

Answers

Answer:

The area is 292.5 cm2

4.) The concert tickets are $190.00 but my friend can get us 20% off. How much will the ticket cost with the discount?

Answers

Answer: $152

20% = 0.20, 190 x0.20 = 38
190 - 38 = $152

Line a is parallel to line b. If the measure of <7 is 114 , what is the measure of <1

Answers

Answer:

66

Step-by-step explanation:

Work out the product of
1
5
7
and
3
1
4

Give your answer as a mixed number.

Answers

is this 1 5/7, 3 1/4 ?

The value of the expression 1 [tex]$\frac{5}{7}[/tex]  x  3 [tex]$\frac{1}{4}[/tex] will be 9 [tex]$\frac{3}{4}[/tex]

What is expression in mathematics?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.

Given is the following expression -

1 [tex]$\frac{5}{7}[/tex] and 3 [tex]$\frac{1}{4}[/tex]

On multiplying the expression, we get -

1 [tex]$\frac{5}{7}[/tex]  x  3 [tex]$\frac{1}{4}[/tex]

(12/7)  x  (13/4)

39/4

9 [tex]$\frac{3}{4}[/tex]

The value of the expression 1 [tex]$\frac{5}{7}[/tex]  x  3 [tex]$\frac{1}{4}[/tex] will be 9 [tex]$\frac{3}{4}[/tex]

Therefore, the value of the expression 1 [tex]$\frac{5}{7}[/tex]  x  3 [tex]$\frac{1}{4}[/tex] will be 9 [tex]$\frac{3}{4}[/tex]

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Write the equation of a circle in the xy-plane with center (0, 2) and a radius with endpoint (⅓ , 4).

Answers

Answer:

Step-by-step explanation:

A plane and a sphere intersect in a circle that has an area of $48 \pi$. The distance between the plane and the center of the sphere is $3$ units. Find the surface area of the sphere.

Answers

The surface area of the sphere based on the information will be 2304π.

How to calculate the area?

It should be noted that the radius of the circle will be 1/2 the length of the line. Therefore, the radius in the shape will be:

= 1/2 × 48

= 24 units.

Therefore, the area of the sphere will be:

= 4πr²

= 4 × π × 24²

= 2304π

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45 Points! Please explain your answer! Brainliest to whoever does the best!

Answers

Answer:

[tex]\sf \boxed{\sf \frac{3}{2} } \ miles \ per \ day[/tex]

Explanation:

[tex]\sf unit \ rate: \dfrac{Total \ distance \ (miles)}{Total \ time \ taken \ (day)}[/tex]

Here given:

[tex]Total \ Distance : 8\dfrac{1}{4} \ or \ 8.25[/tex]

[tex]Total \ Time \ taken : 5\dfrac{1}{2} \ or \ 5.5[/tex]

Find unit rate:

[tex]\rightarrow \sf unit \ rate: \dfrac{8.25 }{5.5 }[/tex]

[tex]\rightarrow \sf unit \ rate: 1.5 \ miles \ per \ day[/tex]

Unit rate

Total distance/Total time8 1/4÷5 1/233/4÷11/233/4×2/113/2mpd

Find the sum:
6,449
+ 4,836

Answers

Answer:

11285

Step-by-step explanation:

Answer:

11,285

Step-by-step explanation:

Line up the numbers so that ther columns add up.

Add the two numbers in the column starting from the right.

The first digit goes to the next column over to the left and the second digit goes directly under the column of the numbers that were added together.

Repeat the steps above till there are no columns left.

The cost of hot drinks in a café is shown:
Cappuccino £2.40
Latte £2.60
Hot Chocolate £3.00
Coffee £2.00
Tea £1.80
adam buys a latte, 2 hot chocalates and a tea.
how much will the drinks cost in total?

Answers

Answer:

£10.40

Step-by-step explanation:

Latte = £2.60
2 Hot Chocolates = £6.00
Tea = £1.80
Total = £2.60 + £6.00 + £1.80 = £10.40

Answer:

£10.40

Step-by-step explanation:

Add the cost of the drinks together to find the total cost:

[tex]\begin{tabular}{r r}Latte & \£2.60\\Hot Choc & \£3.00\\ Hot Choc & \£3.00\\Tea & \£1.80\\\cline{1-2} Total & \£10.40\\\cline{1-2}\end{tabular}[/tex]

What is the completely factored form of x2 – 16xy 64y2? xy(x – 16 64y) xy(x 16 64y) (x – 8y)(x – 8y) (x 8y)(x 8y)

Answers

The complete factored  form of the quadratic expression is (x-8y)(x-8y)

Factorizing quadratic expression

Quadratic expressions are expressions that has a leading degree of 2

Given the expression

x^2 – 16xy + 64y^2

Factorize

x^2 - 8xy - 8xy + 64y^2

Group

(x^2 - 8xy) - (8xy + 64y^2)

x(x-8y) - 8y(x - 8y)

Since (x-8y) is common, hence;

x^2 - 8xy - 8xy + 64y^2 = (x-8y)(x-8y)

The complete factored  form of the quadratic expression is (x-8y)(x-8y)

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Answer:     c on edg

Step-by-step explanation:

                                                             

Write the product using exponents.

Answers

6.4^4 (b^3) or as shown in photo

Find and interpret the mean absolute deviation of the data. Round your answer to the nearest tenth, if necessary.

Answers

Answer:

1. 8

2. 7.8

3. 7

4. 9.3

Step-by-step explanation:

6+10/2=8

8.5+7/2=7.8

6+8/2=7

9+9.5/2=9.3

What is the surface area of the cylinder with height 4 mi and radius 7 mi? Round your answer to the nearest thousandth.

Answers

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[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

What is the surface area of a cylinder with height 4 mi and radius 7 mi?

[tex]\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]

[tex]\textsf{Formula for Surface Area of a Cylinder:-}[/tex]

[tex]\dashrightarrow\bigstar\boxed{\bold{A=2\pi rh+2\pi r^2}}\dashleftarrow[/tex]

Where

[tex]\bold{A=area}[/tex]

[tex]\bold{\pi =pi\:(3.14...)}[/tex]

[tex]\bold{r=radius}[/tex]

[tex]\bold{h=height}[/tex]

Given:-

[tex]\bold{r=4mi}[/tex]

[tex]\bold{h=7\:mi}[/tex]

Solving for Surface Area:-

[tex]\bf{A=2\pi (4)(7)+2\pi (4)^2}[/tex]

[tex]\bf{A=2\pi (28)+2\pi (16)}[/tex]

On further simplification,

[tex]\bf{A=56\pi +32\pi }[/tex]

Now we just add the pi's together:-

[tex]\bf{A=88\pi }[/tex]

And finally,

[tex]\dashrightarrow\bf{\underline{A=276.460\:mi^2}\dashleftarrow[/tex]

Good luck.

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5. What is the value of p in the equation?


p - 4 = -8

-2
-12
-4
- 32

Answers

Answer: p=-4

Since,

=> p-4=-8

=>p-4+4 =-8+4(adding 4 both sides)

=>p=-4 ans.

Answer:

-4

Step-by-step explanation:

Given

p - 4 = -8

Add 4 to both sides.

p - 4 + 4 = -8 + 4p = -4

Hence, the value of p in the equation is -4.

please solve to check if my answer is correct ​

Answers

Rewrite the 3 fractions to have a common denominator:

1/4 = 5/20

2/5 = 8/20

3/4 = 15/20

Now solve:

5/20 - 8/20 + 15/20 = 12/20

12/20 can simplify to 3/5

Answer: 3/5

Guys I need this really quickly please !!

Whats this as a ordinary number?

5x10-2

Answers

Answer:

0.035 3.5×10-²

Step-by-step explanation:

im sorry that is my answer thank you

Please help me. please

Answers

Step-by-step explanation:

a)

the total length of the outer or also only the inner perimeter ?

I assume the second case. but it is not difficult to change it to the outer perimeter case (per the information of b).

the total length consists of a straight side and 2 radius (left and right) of the end circles.

a radius is half the diameter, so 2×radius = 1 diameter.

so,

400 = length + 49

length = 400 - 49 = 351 m

the length of the straight sides is 351 m.

b)

the difference in length between both perimeters bases only on the difference in length of the circumference of the end circles. the lengths of the straight sides remain the same, not matter if outer or inner perimeter.

the circumference of 2 half circles is the circumference of 1 whole circle.

the circumference of a circle is

2×pi×r = pi×diameter

in our case for the inner perimeter

pi×49 = 153.93804... m

for the outer perimeter the radius and therefore the diameter changes : we have to add 6×1.5 m = 9 m on both sides of the circle

so, the radius of the outer circles is 9 m longer and the diameter 9×2 = 18 m longer : 49 + 18 = 67 m

so, we get for the outer circle perimeter

pi×67 = 210.4867078... m

therefore, the difference in the length of outer and inner perimeter is

210.4867078... - 153.93804... = 56.54866776... m

The solution to the problem

Answers

there so many question possibilities and the do many possibilities for answers

if m = 12 what s the vaule of expression 4m-6

Answers

Answer:

42

Step-by-step explanation:

To fine the value of the expression 4m-6 when m = 12, we can plug our value for x (12) into or expression, and then simplify.

So first,

4(12) - 6

Multiply our 4 and 12 ==>

48 - 6

Now subtract the 6 ==>

42

And we have our answer!

Hope this helped!

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[tex]\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

          Evaluate 4m-6 for m=12

[tex]\blue{\textsf{\textbf{\underline{\underline{Answer:-}}}}[/tex]

The value of the expression is 30.

[tex]\blue{\textsf{\textbf{\underline{\underline{How to Solve:-}}}}[/tex]

Simply write the value of m in lieu of m and simplify:-

4(12)-6

Multiply 4 times 12 first, then subtract 6:-

36-6

[tex]\fbox{30}[/tex]

Good luck.

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What is the value of log279?
-3/2, -2/3, 2/3, 3/2

Answers

Answer:

2/3

Step-by-step explanation:

log27(9)

Factor the number: 27=3³

= log3³(9)

Apply log rule: loga^b(x) - 1/b loga(x).

log3³(9) =1/3 log3³(9)

=1/3 log3³(9)

Factor the number: 9=3²

=1/3 log3³(3²)

Apply log rule: loga(a^b) =b

log3 (3²) =2

1/3×2

=2/3

12*11*35 is supposed to be 4260 right? Does anyone know the steps for this? (CBSE Grade 6)

Answers

Step One: Line Up All the Digits. First, line up all of the numbers according to their place value.
Step Two: Multiply by the Ones Digit. ...
Step Three: Add a Zero Place Holder. ...
Step Four: Multiply by the Tens Digit. ...
Step Five: Add the Two Answer Rows Together.

What divided by 8 to equal 3

Answers

Answer: 24

Step-by-step explanation: 24 divided by 8 = 3. Hope this helped.

The scale of this map is 1 inch = 50 miles. How many miles is it between Milwaukee and Muskegon? Assume that the distance between Milwaukee and Muskegon is 1.5 inches.

Answers

[tex]\huge\color{pink}\boxed{\colorbox{Black}{♔︎Answer♔︎}}[/tex]

75 miles

Step-by-step explanation:

On map

The distance between Milwaukee and Muskegon is 1.5 inches

While in real

1 inch = 50 miles

So the actual distance will be

1.5 × 50

75 miles

Answer:

75 miles

Explanation:

Here map to actual to scale: 1 inch = 50 miles

On map distance: 1.5 inches

To find actual distance, simply multiply map distance by scale factor

Actual Distance : 1.5 × 50 = 75 miles

Southwest Dry Cleaners believes that it will need new equipment in 6 year. The equipment will cost $26,000. What lump sum should be invested today at 10 percent compounded semiannually, to yield $26,000?

Answers

The amount will be equal to $14478.22.

What is compound interest?

Compound interest is the interest levied on the interest. The formula for the calculation of compound interest is given as:-

A = P (1+R/2)^2t

Where, A = Amount after 6 years = $26,000; P = Amount invested now; R = Annual rate of earning = 10% = 0.06; t = time = 6 years.

Substituting;

[tex]26000 = P(1+\dfrac{0.1}{2})^{2*6}=P(1.7958)[/tex]

Therefore, P = 26000/1.7958 = $14478.22

Thus amount will be equal to $14478.22.

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The slope of the line that passes through points (3,−2) and (3,10) is Select Choice .
1.0
2.3
3.4
4.undefined

Answers

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[tex]\blue\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]

What is the slope of the line passing through points (3, -2) and (3, 10)?

[tex]\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]

We can use the slope formula:-

[tex]\boxed{\displaystyle\frac{y2-y1}{x2-x1}}[/tex]

[tex]\boxed{\frac{10-(-2)}{3-3}}[/tex]

[tex]\boxed{\frac{12}{0}}[/tex]

undefined

Remember, if we divide a number by zero, the result is infinity, and infinity is not a number.

Good luck.

     

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Find the value of the triangle shown below
X=

Answers

this is a isosceles triangle. all sides degrees added together (triangle) is equal to 180.

we know one side is 55°, and since its isosceles, it will be congruent on both sides. so there are 2 55°.

since the sum of all angles is 180°, the equation will be 55°+55°+x=180

combine like terms (55+55), which equals to 110.

last, 180-110 = 70

so the answer will be x = 70°

how can I find the exponential function from a table?

Answers

the hmmm cheap way to go about is, usually using the x = 1 and x = 0 pairs.

[tex]y = ab^x\hspace{5em} \begin{array}{|rr|ll} \cline{1-2} x&y\\ \cline{1-2} -2&1\\ -1&3\\ 0&9\\ 1&27\\ 2&81\\ \cline{1-2} \end{array} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} x=0\\ y=9 \end{cases}\implies 9~~ = ~~ab^0\implies 9=a(1)\implies 9=a~\hfill \underline{y=9b^x} \\\\\\ \begin{cases} x=1\\ y=27 \end{cases}\implies 27~~ = ~~9b^1\implies \cfrac{27}{9}=b^1\implies 3=b~\hfill \underline{y=9(3)^x}[/tex]

The width of the tunnel at ground level is 8 meters and the height of the highest point of the entrance is also 8 meters.
Find the equation of a graph which can accurately model the shape of the tunnel entrance.
(Parabola question!!! pls help)

Answers

Answer:

5.7 meterslong and 5.8meters width

I need help asap.
If the area of the rectangular base of Julian's tank is approximately 300 square inches, what is the approximate area of the rectangular base of his friend's tank?

302.5 square inches
468.75 square inches
750 square inches
375 square inches

Answers

The area of the rectangular base of his friend's tank is 468.75 square inches. So, Option D is correct.

What is the area of the rectangle?

The area of the rectangle is the product of the length and width of a given rectangle.

The area of the rectangle = length × Width

One of Julian's friends also has a rectangular aquarium.

The dimensions of his friend's tank are each exactly 1 1/4 times the dimensions of Julian's tank.

Let x be the length of Julian's tank.

Let y be the width of Julian's tank.

So, the Area of Julian's tank = length × Width

                                               = xy

Since we are given

300 = xy

Now we are given that the dimensions of his friend's tank are each exactly times the dimensions of Julian's tank.

So, the length of his friend's tank = 5/4 x

So, the width of his friend's tank = 5/4 y

So, Area of his friend's tank = ( 5/4 x) (5/4 y)

                                           = 25 / 16 xy

                                           = 25 / 16 (300)

                                           = 468.75

                         

Hence the area of the rectangular base of his friend's tank is 468.75 square inches.

So, Option D is correct.

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Which two general strategies do organisms use to keep ammonia concentrations at safe, low levels? Select two answer choices. Please help!! Will give brainliest if its the correct answer Maggie wants to buy a car for $24,500. If she puts a down payment of $4,000 down, she will have to take out a loan for the rest of the money with an interest rate of 5.1% and pay it back over 6 years (72 months). How much will Maggie pay each month on her loan?$299.24$284.79$340.27 URGENT Give three examples of models that you see every day 1. List the variable costs for one of your company's products or services, with a cost estimate for each variable cost. If you have more than one product or service, choose one of them. (3.0 points) For example, the variable costs for a company that makes t-shirts and ships them to customers might look like this: T-shirts--$6 each Paint--about $1.25 per shirt Labor--about $3 per shirt (because workers earn $9 per hour and can make 3 shirts per hour, or because workers are paid by the shirt)Shipping--$4 per shirt2. Add the variable costs per unit to get the total cost of goods or services sold per unit. (1.0 points) TIP: Your minimum selling price will have to be higher than this number. Next, you'll calculate fixed costs to find out how much higher it needs to be. For example, the total cost of goods or services sold for the t-shirt company would be $14.25.3. List the fixed costs for your company, with estimates for how much each cost will be per month. If some of your fixed costs are one-time purchases, like a computer or equipment, divide the total cost of the purchase by the number of months you expect to use the purchase. (3.0 points)For example, the fixed costs for the t-shirt company might look like this:Rent--$300 per monthUtilities (water and electricity)--$50 per monthTelephone and Internet service--$50 per monthComputer and printer--$1,200 total cost, divided by 60 months total expected use, is $20 per monthOffice supplies--$25 per month4. Add the fixed monthly costs to get the total fixed costs per month. (1.0 points) TIP: Now you know that your minimum selling price has to be high enough to cover these fixed costs too. You'll calculate your break even point next.For example, the monthly fixed costs for the t-shirt company would be $445.5. Calculate the selling price you would need in order to break even if your company sold 100 units of your product or service, using the steps below. a. Divide your total monthly fixed costs (from question 4 above) by 100. This is the total fixed cost per unit. (1.0 points)For example, for the t-shirt company, this is $445 divided by 100, which is $4.45.b. Add the total fixed cost per unit (from 5a above) to the total cost of goods or services sold per unit (from question 2 above). This is the selling price you would need in order to break even if you sold 100 units per month. (1.0 points)For example, for the t-shirt company, this is $14.25 plus $4.45, which is $18.70. This means the t-shirt company would need a selling price of at least $18.70 to break even if it sold 100 shirts.6. Calculate the number of units you would need to sell in order to break even, using a selling price of your choice. Use the steps below.a. Choose a selling price that is higher than your total cost of goods or services sold per unit (the amount from question 2 above) but that is different from the selling price from question 5b above. Pick a price you think is reasonable. (2.0 points)For example, the t-shirt company might decide that it is reasonable to price the shirts at $20 instead of $18.70. b. 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