A rectangle has an area of 4y2 – 49 square
units. What are the dimensions of the
rectangle?

A Rectangle Has An Area Of 4y2 49 Squareunits. What Are The Dimensions Of Therectangle?

Answers

Answer 1

Answer:

D. (2y - 7) units by (2y + 7) units

Step-by-step explanation:

[tex]A(rectangle) =4y^2-49[/tex]

[tex]\implies A(rectangle) =(2y)^2-(7)^2[/tex]

[tex]\implies A(rectangle) =(2y-7)(2y+7)[/tex]

-> D(rectangle) = (2y-7) units by (2y + 7) units

Related Questions

1-Find the measure of 1. 226 degrees
2. 113 degrees
3. 134 degrees
4. 67 degrees

2-Find the circumference of the circle 7 cm. Use 3.14 for pi.
1. 21.98 cm
2. 38 cm
3. 3.5 cm
4. 7 cm

3-Classify the triangle by its sides and angles: 15.5 in, 15.5 in and 15.5 in.
1. Scalene, right
2. Equilateral, right
3. Equilateral, acute
4. Isosceles, acute

4-What are the coordinates of the image of point L(4,2) after a reflection over the line y = -1.
1. (-5,2)
2. (4,-4)
3. (3,1)
4. (4,-2)

5-A point P has coordinates (3.2). What are it’s new coordinates after reflecting point P over the y-axis.
1. (-3,-2)
2. (3,-2)
3. (3,2)
4. (-3,2)

Answers

21.98 is the answer :) your welcome

Expand and simplify 3(x-4)(2x+5)​

Answers

3(x-4)(2x+5)

= 3×(x-4)×(2x+5)

= (3x-12)(2x+5)

= 6x²+15x-24x-60

= 6x²-9x-60

Step-by-step explanation:

[tex]3( {2x }^{2} + 5x - 8x - 20) \\ 3( {2x}^{2} - 3x - 20) \\ {6x}^{2} - 9x - 60 \\(6x + \frac{5}{2} )(x - 4)[/tex]

344/299 = x
what is x?

Answers

Answer:

Mixed Number Form: x = 1 45/299

Decimal Form: x = 1.15050167…

Step-by-step explanation:

The answer is 344 / 299 = 115.05%, X=115.05%

please answer asap! 20 points!!
A new car is purchased for 23,900 dollars. The value of the car depreciates at a rate of 6.4% per year. Which equation represents the value of the car after 4 years?

1) V= 23,900(0.936)(0.936)(0.936)(0.936)
2) V=23,900(1+0.064)⁴
3) V= 23,900(1−0.064)(1−0.064)
4) V= 23,900(0.064)⁴

Answers

Answer:

  1) V= 23,900(0.936)(0.936)(0.936)(0.936)

Step-by-step explanation:

Each year, the car depreciates to 1 -0.064 = 0.936 of its previous value. After 4 years, the original value has been multiplied by this factor 4 times:

__

  depreciated value = 23,900(0.936)(0.936)(0.936)(0.936)

_____

This could be represented by ...

  V = 23,900(1 -0.064)⁴ . . . . . . not an answer choice

Handedness: 18 left-handed
22 right-handed


The incomplete table above summarizes the number of left-handed students and right-handed students by gender for the eighth grade students at Keisel Middle School. There are 5 times as many right-handed female students as there are left-handed female students, and there are 9 times as many right-handed male students as there are left-handed male students. if there is a total of 18 left-handed students and 122 right-handed students in the school, which of the following is closest to the probability that a right-handed student selected at random is female? (Note: Assume that none of the eighth-grade students are both right-handed and left-handed.)
A) 0.410
B) 0.357
C) 0.333
D) 0.250
If shoppers enter a store at an average rate of r shoppers per minute and each stays in the store for average time of T minutes, the average number of shoppers in the store, N, at any one time is given by the formula N=rT. This relationship is known as Little's law.

The owner of the Good Deals Store estimates that during business hours, an average of 3 shoppers per minute enter the store and that each of them stays an average of 15 minutes. The store owner uses Little's law to estimate that there are 45 shoppers in the store at any time.

Little's law can be applied to any part of the store, such as a particular department or the checkout lines. The store owner determines that, during business hours, approximately 84 shoppers per hour make a purchase and each of these shoppers spend an average of 5 minutes in the checkout line. At any time during business hours, about how many shoppers, on average, are waiting in the checkout line to make a purchase at the Good Deals Store?

Answers

Answer:

Let x be the number of left handed female students and let y be the number of left handed male students.

Then the number of right handed female students will be 5x and the number of right handed male students will be 9y. Since the total number of left handed students is 18 and the total number of right handed students is 122, the following system of equations must be satisfied.

x+y=18 and 5x+9y=122

Solving this system gives x=10 and y=8.

Thus, 50 of the 122 right handed students are female. Therefore, the probability that a right handed student selected at random is female is   the fraction  50/122

which to the nearest thousandth is 0.410.

T is average time spend by shoppers in minutes

N average number of shoppers.

Here, shoppers/hour =84.

Hence r=

60

84

​T=5

Hence N=rT=

60

84

×5=7

Average number of shoppers waiting at checkout =7

Answer:

EMMA ITS KAIDN. text back.

Step-by-step explanation:

I had already answered this.

Math hw 2


Probability Distributions




pls help me with my homework!!


thanks,

Answers

In the given question, to approach this, we should have a little understanding of what is a random variable. The random variable here is the distance travelled by the tee shots in a golf.

What is a Random Variable?

A random variable is a numerical description of the outcome of a statistical experiment. A random variable that may assume only a finite number or an infinite sequence of values is said to be discrete; one that may assume any value in some interval on the real number line is said to be continuous.

We are given two scenarios in which we are to identify the random variable here.

The number of hits for the players of a baseball teamThe distance travelled by the tee shots in a golf

In the above scenarios, the random variable here is the distance travelled by the tee shots in a golf. The reason is that we can never give an exact value the distance and would lead to an assumption of a finite number of value or an infinite sequence of values to determine this.

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Hi, please help me out with this math question I don't understand it.
Sorry for the black
15 POINTS

Answers

Answer:

[tex]3^{6}[/tex] is the answer your looking for

Step-by-step explanation:

A bag of dry costs $2.85. Alka pays for the bag with a $5.00 bill. How much change does Alka get back?

Answers

Answer:

$2.15

Step-by-step explanation:

$5 - $2.85 = $2.15

this is the explanation

The cost of dry bag is $2.85 then the change does Alka get back will be $2.15.

What are arithmetic Operations?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the mentioned information in the question,

Cost of dry bag = $2.85

Money given by Alka for the bill = $5.00

Then, the amount she will get back,

($5.00 - $2.85) = $2.15

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alfredo va a comprar 850 dolares si cada dolar cuesta en promedio 2945 pesos cuanto dinero en pesos debe llevar alfredo

Answers

Answer:

He will need $2,503,250 pesos.

Step-by-step explanation:

2,945 x 850 = 2,503,250

Please help, it’s due tomorrow

Answers

Answer:

The largest interger that satisfies the equation is 3

Step-by-step explanation:

If we subtract 10 from each side, we get 7x<=21

Then, we divide 7 on each side to get x<=3.

So the largest interger to satisfy the equation is 3

(Btw, <= means less than or equal to)

Hope this helped you, and have a great day!

Answer:

x<=3

Step-by-step explanation:

minus 10 fom both sides

7x + 10-10<=31-10

restate as

7x<=21

divid both side by same factor

7x/7 and 21/7

restate as

x<=3

A state tourist guide provides information on summer vacation towns. Some of the towns and related information are
given in the table below.
Average
Number
Town
Beach
Access?
Temp
(°F)
Location
of Hotels
Spring Haven
73.2
12
yes
West

Answers

Based on the information given in the table, the discrete quantitative variable would be the number of hotels.

What is a discrete quantitative variable?

This refers to a variable in a distribution that can only take on a specific value that is countable.

This means that the number does not go on forever. Examples of these are the number of fingers and toes you have.

The discrete quantitative variable from the options would therefore be the number of hotels that there are.

________________________________________________________

The rest of the question is:

Which of the variables is a discrete quantitative variable?

A:average temperature

B:number of hotels

C:beach access

D:location

________________________________________________________

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I need help with this ASAP
At Josie’s job, she is paid $12 for every hour she works. Write a
recursive and explicit formula to describe this sequence.
Im also giving Brainlist

Answers

Answer:

It would be y=12x

Step-by-step explanation:

I think

Answer:

if x=24°and y = 54°

sin x + sin y

A(2,-3), P(2,9)Find the slope of the line through the pair of points

Answers

Answer:

Step-by-step explanation:

(9 + 3)/(2 - 2)= 12/0= undefined

does anyone know the width the length the height of this tissue box pls someone tell me Asap.

Answers

Answer:

Hey!

Well based on my knowledge it usually says that on the tissue box itself.... (in fine print)

i may be wrong.... but do check...

A store has clearance items that have been marked down by 50%. they are having a sale, advertising an additional 30% off clearance items. what percent of the original price do you end up paying

Answers

Answer:

20%

Step-by-step explanation:

50+30=80

100-80=20

so you would pay 20%

In a company's first year in operation, it made an annual profit of $140,000. The profit of the company increased at a constant 20% per year each year. How much total profit would the company make over the course of its first 14 years of operation, to the nearest whole number?

Answers

Answer:

  $8,287,429

Step-by-step explanation:

The total profit will be the sum of a geometric series. The formula for that sum is ...

  Sn = a1 × (r^n -1)/(r -1)

where a1 is the first term, r is the common ratio, and n is the number of terms.

__

Here, the series has first term $140,000, common ratio 1+0.20 = 1.2, and we want the total of 14 terms. The total profit is ...

  S14 = ($140,000) × (1.2^14 -1)/(1.2 -1) ≈ $8,287,429

In the first 14 years of operation, the total profit would be $8,287,429.

An equilateral triangle has a side length of $12 \sqrt{3}.$ The triangle is rotated about one of its altitudes as an axis, sweeping out a cone in space. Find the volume of the cone.

Answers

The volume of the cone is 254.85 cubic units

How to determine the volume of the cone?

The side length of the equilateral triangle is given as:

l = 12√3

Calculate the radius (r) of the cone using:

r = l/2

r = 12/2√3

r = 6√3

Calculate the height of the cone using:

[tex]h = \sqrt{l^2 + (l/2)^2[/tex]

This gives

[tex]h = \sqrt{(12\sqrt 3)^2 + (6\sqrt3)^2[/tex]

Evaluate

[tex]h = \sqrt{540[/tex]

h = 22.24

The volume of the cone is then calculated as:

V = 1/3πr²h

This gives

V = 1/3π * (6√3)² * 22.24

Evaluate

V = 254.85

Hence, the volume of the cone is 254.85 cubic units

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What does this math statement tell us?
ΔΑΒC ~ ΔΧΥΖ
PLS HELP I WILL MARK BRAINLIEST

Answers

Answer:

B

Step-by-step explanation:

~ symbol refers to similarity. ∆ABC ~∆XYZ means that the two triangles are similar(Same shapes, not the same size).

Answer: B) Triangles ABC and XYZ are similar, this means their side lengths are proportional to each other.

Which of the following statements is true for a sphere?


A sphere is the set of all points in space equidistant from a line segment called the radius.

Answer A: A sphere is the set of all points in space equidistant from a line segment called the radius.
A

A sphere is the set of all points in space equidistant from a point called the center.

Answer B: A sphere is the set of all points in space equidistant from a point called the center.
B

A sphere is the set of all points in a plane equidistant from a line segment called the radius.

Answer C: A sphere is the set of all points in a plane equidistant from a line segment called the radius.
C

Answer D : A sphere is the set of all points in a plane equidistant from a point called the center.

Answers

The answer choice which is true of a sphere; A sphere is the set of all points in space equidistant from a point called the center.

What is a Sphere?

A sphere is a geometrical entity that is characterized as a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance from a given point in three-dimensional space. The given point in discuss is the centre of the sphere, and distance, r is the sphere's radius.

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helppppp this is so confusing

Answers

Answer:

on the graph all u have to do is draw the line Have a great day and i hope this helps!

Step-by-step explanation:

find the mid point of the line segment.

Answers

can you upload a less blury picture

Answer:

  (-3/2, 0)

Step-by-step explanation:

The midpoint of a line segment is the average of the end point coordinates.

  M = (A +B)/2

__

For end points A(-5, 5) and B(2, -5), the midpoint is ...

  ((-5, 5) +(2, -5))/2 = (-5+2, 5-5)/2 = (-3, 0)/2 = (-3/2, 0)

The midpoint of the segment is (-3/2, 0).

A bag contains 5 black marbles, 7 blue marbles, 3 green marbles, 4 red marbles, and 1 white marble. A marble is selected and then replaced. What is the probability of selecting a black marble?

Answers

Answer:

1/4

Step-by-step explanation:

5 black marbles out of  20 total    is    5 /20 = 1/4

g(t)=-3t +2 h(t)=t-4 find (g o h)t)

Answers

Answer:

3t-10

Step-by-step explanation:

g(h(t))=g(t-4)

=3(t-4)+2

=3t-12+2

=3t-10

Please Help!! DUE SOON!! I'LL MARk BRAInLiEAST!! HIGH POintS!!

Answers

Answer:

Step-by-step explanation:

The first four terms of a sequence are shown on the graph below.

What can be concluded about the sequence?
The common ratio of the sequence is 2.
The common difference of the sequence is 2.
The next term of the sequence is represented by the point (5, 64).
The next term of the sequence is represented by the point (5, –64).

Answers

Answer:

The next term of the sequence is represented by the point (5, –64)

Step-by-step explanation:

From inspection of the graph, the first four terms of the sequence are:

(1, -4)(2, 8)(3, -16)(4, 32)

Each x-value increases by 1 for each consecutive term.

Each y-value is the previous y-value multiplied by -2.

Therefore, it is a geometric sequence with a common ratio of -2.

Following the above rule, if the last term in the sequence is (4, 32), then the next term in the sequence will be:

x = 4 + 1 = 5y = 32 × -2 = -64

So, the next term of the sequence is represented by the point (5, –64)

can someone help me and solve the following equation showing work please?
thank you!

Answers

The angle made by an arc at the centre of the circle is double the angle made by the same arc at any point on the circle. The measure of the angle θ will be 45°.

What are an arc and subtended angle theorem?

According to the arc and subtended angle theorem, The angle made by an arc at the centre of the circle is double the angle made by the same arc at any point on the circle.

The angle made by an arc at the centre of the circle is double the angle made by the same arc at any point on the circle. Therefore, the measure of the angle θ will be half the measure of the ∠P.

As it can be observed the measure of the angle ∠P is 90°, therefore, the measure of the angle θ can be written as,

∠P = 2 × ∠θ

90° = 2 × ∠θ

∠θ = 45°

Hence, the measure of the angle θ will be 45°.

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Find the Surface Area:


A) 144 in^2
B) 102 in^2
C) 17 in^2
D) 180 in^2
E) 68 in^2

Answers

Answer:

D 180 in²

Step-by-step explanation:

step 1

2 (l) (w) + 2 (l) (h) + 2(h) (w)

step 2

2×(6)×(3) + 2×(6)×(8) + 2×(8)×(3)

step 3

2×(18) + 2×(48) + 2×(24)

step4

36 + 96 + 48 = 180 in²

The diagonal of the rectangle is 10 inches long and the height of the rectangle is 8 inches. What is the perimeter of the rectangle in the inches?

Answers

Basic perimeter is really easy to understand;

Step-by-step explanation:

10 x 8 = 80 in.

80 in. is your answer! Please mark brainliest and have a great day! :D

John spins a fair spinner with 5 equal sections numbered 1 through 5. His spin lands on the number 2. What is the probability that John's next three spins land on the number 2

Answers

Using it's concept, it is found that the probability that John's next three spins land on the number 2 is of [tex]\frac{1}{125}[/tex].

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, we have that out of 5 numbers, one is 2, hence the probability of three consecutive spins landing on two is given by:

[tex]p = \left(\frac{1}{5}\right)^3 = \frac{1}{125}[/tex].

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A triangle with a perimeter of 50 units is the image of a triangle that was dilated by a
scale factor of 3/4. Find the perimeter of the preimage, the original triangle, before its
dilation. Round your answer to the nearest tenth, if necessary.

Answers

If the scale factor is 3/4. Then the perimeter of the original triangle will be 66.67 units.

What is dilation?

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered.

A triangle with a perimeter of 50 units is the image of a triangle that was dilated by a scale factor of 3/4.

Then the perimeter of the preimage, the original triangle, before its

dilation will be

Let c be the perimeter of the original triangle.

Then we have

[tex]\rm \dfrac{3}{4} \times x = 50\\\\x = 66.67[/tex]

Then the perimeter of the original triangle is 66.67 units.

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