A rectangle has a height of 7 and a width of 2x^2 - 3.


Please help

A Rectangle Has A Height Of 7 And A Width Of 2x^2 - 3. Please Help

Answers

Answer 1

Answer:

14x² - 21

Step-by-step explanation:

In order to expand the expression, you simply need to multiply 7 by 2x², then by -3.

2x² × 7 = 14x²

-3 × 7 = -21

Therefore, the area of the entire rectangle is 14x² - 21 (you will not need to solve for x, as there is no way to do that without knowing the area first).


Related Questions

Timothy gathered data on student ages and shoe sizes to see if there is a relationship between the two.

Which data display should Timothy use?

histogram
box plot
dot plot
scatter plot

Answers

Answer:

The CORRECT answer to this question is a scatterplot.

You're welcome:)

Final answer:

A scatter plot is the best choice of data display for Timothy to find a relationship between the ages of students and their shoe sizes. It shows a possible relationship between two variables, unlike histograms, box plots, and dot plots that display distribution or frequency of a single variable.

Explanation:

For Timothy to find if there is a relationship between the ages of students and their shoe sizes, the best choice of data display is a scatter plot. A scatter plot is a type of plot that is used to display values for typically two variables for a set of data. On a scatter plot, both horizontal and vertical axes are value axes that plot numeric data. Thus, it's most suitable for showing a possible relationship between two variables, such as ages and shoe sizes in this case. Other display methods, such as histograms, box plots, and dot plots, are more suitable for displaying distribution or frequency of a single variable rather than a relationship between two variables.

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how many sqaure feet of carpet do you need will you need

8 ft

12 ft

2 ft

3 ft

Answers

12 ft I had the question the other day on online school :)

Two students are using the distance formula to determine the distance between (9, 4) and (–3, 8) on a coordinate grid. Their work is shown below. Karlin’s Work d = StartRoot (9 minus (negative 3)) squared + (4 minus 8) squared EndRoot. D = StartRoot (12) squared + (negative 4) squared EndRoot. D = StartRoot 144 + 16 EndRoot. D = StartRoot 160 EndRoot. Abby’s Work d = StartRoot (negative 3 minus 9) squared + (8 minus 4) squared EndRoot. D = StartRoot (negative 12) squared + (4) squared EndRoot. D = StartRoot 144 + 16 EndRoot. D = StartRoot 160 EndRoot. Which best explains why the order in which the subtraction occurred did not cause a difference in the answers determined by the two girls? The differences are each squared. The differences are added together. The square root of the differences is taken. The differences are the same regardless of order.

Answers

Answer:

The differences are each squared.

Step-by-step explanation:

Thats the answer I just took the test and its a on edgenunity

Answer:

A

Step-by-step explanation:

PLEASEE HELP I WILL MARK BRAINLIEST

Answers

Answer:

What do I help with?

Step-by-step explanation:

IF you put a picture we cannot see it/ At least I cannot see it.

Jim and Bill each invest $15,000 into savings accounts that earn 3.5% interest. Jim's account earns simple interest and Bill's account earns compound interest. After 25 years, who will earn more interest and how much more will he earn?

Answers

Answer:

Bill will earn more interest

He will earn $ 20,448.67 from his investment

Step-by-step explanations

Firstly let us calculate Jim's earnings based on simple interest

A = P(1 + rt)

Calculation:

First, converting R percent to r

a decimal

r = R/100 = 3.5%/100 = 0.035 per year.

Solving our equation:

A = 15000(1 + (0.035 × 25)) = 28125

A = $28,125.00

The total amount accrued, principal plus interest, from simple interest on a principal of $15,000.00 at a rate of 3.5% per year for 25 years is $28,125.00 for Jim

Now let's us calculate bill's investment based on compound interest

Equation

A = P(1 + r)^t

A=15000(1+0.035)^25

A=15000(1.035)^25

A=15000*2.36324498427

A = $ 35,448.67

We see that Bill will earn

$ 20,448.67 from his investment

I need help on my HW ASAP

Answers

Answer: Your answers are all correct.

Step-by-step explanation: Good Job :D

Isabella decides to sell handmade stationery. She decides to sell 2 cards for $9. Which table below show the possible values of c, the number of cards Isabella sells, and d, the number of dollars she charges?

Answers

Answer:

B

Step-by-step explanation:

each time she sells 2 cards she gets $9 right?

so counting by 2's is the best route to go on and the only answer that displays that is answer B

Mathematical tables are collections of numbers that represent the outcome of computation with varied arguments. The correct table is B.

What is a table?

Mathematical tables are collections of numbers that represent the outcome of computation with varied arguments.

Given that Isabella sells 2 cards for $9. Therefore, the cost of 1 card will be,

[tex]\text{Cost of 1 card} = \dfrac{\$9}{2} =\$4.5[/tex]

Now, checking the options,

A.) The table is wrong because the cost of 11 cards will be $49.5, instead of 50.5.

B.) The table is correct because all the values are correct.

C.) The table is wrong because the cost of 27 cards will not be equal to $6.

D.) The table is wrong because the cost of 3 cards will not be equal to $10.

Hence, the correct table is B.

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Put the polynomial, 5 - 3x ^ 2 + 4x + 5x ^ 3 in standard form please!

Answers

Look at the attached picture

Hope it will help u...

help on this ASAP IF FOR TODAY

Answers

Answer:

tangent line : UQ

secant line: line UR

chord: US

diameter: UW

2) OD= 4.8

3)x =7 SV=6

Step-by-step explanation:

tangent line :  A tangent to a circle is a straight line which touches the circle at only one point

secant:A secant is a line that intersects a circle in exactly two points

diameter: diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle

Surface Area triangle

Answers

Answer:

1/2 base times height

1/2 times base height

A shop sells a party hat at x dollars and a mask at y dollars. On a particular morning, 3 hats and 4 masks were sold for $27. In the afternoon, 3 hats and 6 masks were sold for $33. Find the cost of each hat and each mask.

Answers

Answer:

Cost of each hat: $5

Cost of each mask: $3

Step-by-step explanation:

Let be "x" the cost in dollars of a party hat and "y" the cost in dollars of a mask.

Set up a System of equations using the information given in the exercise:

[tex]\left \{ {{3x+4y=27} \atop {3x+6y=33}} \right.[/tex]

You can use the Elimination Method to solve this System of equations:

1. You can multiply the first equation by -1.

2. Then you must add the equations.

3. Solve for "y".

Then:

[tex]\left \{ {{-3x-4y=-27} \atop {3x+6y=33}} \right.\\.....................\\2y=6\\\\y=\frac{6}{2}\\\\y=3[/tex]

4. Now you can substitute the value of "y" into any original equation.

5. Finally, solve for "x" in order to find its value.

Then:

 [tex]3x+4(3)=27\\\\3x=27-12\\\\x=\frac{15}{3}\\\\x=5[/tex]

3 divided 4 is 3/4. What is 1/4 of 3

Answers

Answer:

3/4

Step-by-step explanation:

When you see "of" and there's a fraction involved, you can usually multiply them to find the answer. 1/4 * 3 = 3/4.

Please help me *20 points*

Answers

Answer:

36

Step-by-step explanation:

Frequency of less than 4:

6 + 4 + 8 = 18

Probability:

18/50 × 100 = 36%

The answer for your question is 12



The foot of an extension ladder is 3 ft from a wall. The height that the ladder reaches on the wall and the length of the ladder are consecutive integers. How long is the​ ladder?

Answers

Answer:

The length of the ladder is 5 feet

Step-by-step explanation:

Please kindly check the attached file for explanaion

The ladder is 5 feet long.

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles

Given,

Let x = height ladder reaches on wall

Let x+1 = length of the ladder

the three pieces of this form a right triangle

so (x+1)² = x² + 3²

x² +2x + 1 = x² +9

2x = 8

Divide both sides by 2

x=4

so the ladder reaches 4 feet on the wall

x+1 = 5

The ladder is 5 feet long

Hence, the ladder is 5 feet long.

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Answer the following questions using the series representation.
0.9 + 0.09 + 0.009 + …
The first term is?
The common ratio is?

Answers

To find the common ratio, we have to ask ourselves: 0.9 multipled by what number is equal to 0.09?

0.9 * x = 0.09

x = .1

The next term is 0.009 * .1 (common ratio) = 0.0009

Answer:

a and c

0.9

0.1

1

Step-by-step explanation:

ez

A student is doing a study on study habits. He needs a random sample of students from every grade level. What is a good way to do this?

A)
He could send a questionnaire to every student in Algebra I.

B)
He could put a questionnaire on all cars in the senior parking lot.

C)
He could send a questionnaire to every student in a senior English class.

D)
He could poll all students in a 9th grade, 10th grade, 11th grade, and 12th grade English class.

Answers

I had the same question so if you get the answer I will be back

Answer: D (He could poll all students in a 9th grade, 10th grade, 11th grade, and 12th grade English class.)

Explanation: It states that he needs a random sample from every grade level.

Help!!! Please!

shows the square-based pyramid ABCDE. The side length of the base is 96 m and the pyramid's height is 55 m. O is the centre of the square base, directly below E. M is the midpoint of AD. Use Pythagoras' theorem to find the length EM.

Answers

Answer:

EM = 73 m

Step-by-step explanation:

Using the right triangle MOE

with legs MO = 48. EO = 55 and hypotenuse EM

Applying Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

EM² = 48² + 55² = 2304 + 3025 = 5329 ( take the square root of both sides )

EM = [tex]\sqrt{5329}[/tex] = 73

Find the rule of f(1)

Answers

Step-by-step explanation:

Given

f(x) = (11)^x + 2

f(1) = 11^1 + 2

= 11 + 2

= 13

8) Zeke lives 30 miles from his aunt, Zelda, and is riding his bike home from her house
Interpret the graph to tell a story about what could have happened on his ride home.

Answers

I believe that a couple of problems could have been traffic or even just some rain that could’ve slowed him down or made him speed to not make it approximately 30 miles from his aunts house home.
Final answer:

Without the graph, we can speculate that it's a distance-time graph and could show how Zeke moved at different speeds, when he stopped or got lost, and when he arrived home, based on changes in the line over time.

Explanation:

Without the specific characteristics of the given graph, we can speculate using a generic distance-time graph. Let's say the 'y' axis represents the

distance

(in miles) from Zeke's home, and the 'x' axis represents time. At the start, Zeke is 30 miles away from home (top of the graph). If the line on the graph descends steeply, it means Zeke is going at a faster speed. A flat line would indicate Zeke has stopped or is not moving towards home, perhaps taking a rest. Sharp downward spikes could indicate periods where Zeke raced home at high

speeds

. If the line ascends, it could mean Zeke had to backtrack or got lost. The point at which the line reaches the bottom of the 'y' axis would be when Zeke arrives home. Making sense of a graph involves understanding its axes, the initial conditions and the interpretation of the changes in the line over time.

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Find the value of X in the triangle. Then classify the triangle as acute right or obtuse

27, 59, x

A. 104
B. 89
C. 93
D. 94

Answers

The answer to this question might be A
27+59=86
180-86= 94
Answer=94

A baseball team receives 310,000 in sponsorship equipment, and the administrative cost are expected to be $47,000. What are the cost as a percentage of sponsorship revenue?

Answers

Final answer:

To calculate the cost as a percentage of sponsorship revenue, divide the administrative cost by the sponsorship revenue and multiply by 100. The cost as a percentage of sponsorship revenue is 15.16%.

Explanation:

To calculate the cost as a percentage of sponsorship revenue, we need to divide the administrative cost by the sponsorship revenue and multiply by 100.

Step 1: Divide the administrative cost ($47,000) by the sponsorship revenue ($310,000).
$47,000 ÷ $310,000 = 0.1516

Step 2: Multiply the result by 100 to convert it to a percentage.
0.1516 x 100 = 15.16%

The cost as a percentage of sponsorship revenue is 15.16%.

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according to the fundamental theorem of algebra, how many roots does the following equation have?

Answers

Answer:

n

Step-by-step explanation:

While you did not specify the equation, there are n roots for an equation of n power.

i.e. anything that x, power is 1, only one root

For [tex]x^{2}[/tex], there are two roots

For [tex]x^{n}[/tex], there are n roots

An anemometer is a device used to measure wind speed.
The anemometer shown is attached to the top of a pole.
Support wires are attached to the pole 5 feet above the
ground. Each support wire is 6 feet long. How far from
the base of the pole is each wire attached to the ground?​

Answers

Answer:

3.32ft

Step-by-step explanation:

The wire and the poles attached to the ground form a right triangle with the length of the wire being the hypotenuse.

Using Pythagoras Theorem:

Hypotenuse²=Adjacent²+Opposite²

6²=5²+x²

x²=36-25

x²=11

x=√11=3.32 ft.

The wires are attached 3.32 ft from the base of the pole on the ground

Answer:

The question can be answered by using a Pythagoras' Theorem :  [tex]c^2=a^2+b^2[/tex] to find the base of  the pole to which each wire is  attached to the ground.

Step-by-step explanation:

the base of the pole is represented by b.

the height of the pole is represented by a= 5 feet

the length of t he wire is represented by c=5 feet.

Thus, using the Phytagoras Theorem,

c^2=a^2+b^2,

[tex]6^2=5^2+b^2\\36=25+b^2,\\36-25=b^2\\Thus, b^2=11,\\b=\sqrt 11[/tex] or b=3.3.

Thus , each wire i attached by about 3.3 feet to the base of the pole.

You conduct an inventory for a hardware store and count 40 rolls of duct tape. Your manager wants to keep 7 boxes of duct tape in stock. If each holds 8 rolls of duck tape, how many boxes should you order? Justify your answer.

Answers

Answer: 2 boxes

Step-by-step explanation: first realize that 7 times 8 is 56 so the manager wants 56 rolls in stock and you only have 40

then subtract 56 - 40 = 16 and this means you need 16 rolls

remember that there is 8 rolls in a box and 16 divided by 8 is 2 so 2 boxes should be ordered

hope this helps mark me brainliest if it did

Benny’s age is currently 200% of his sister Jenny’s age. What percent of Benny’s age will Jenny’s age

be in 4 years?

Answers

Final answer:

Jenny's future age would be expressed as ((x+4)/(2x+4))*100 percent of Benny's future age, where x is Jenny's current age.

Explanation:

To solve this problem, we first note that Benny is currently 200% of Jenny's age, meaning Benny's age is twice that of Jenny. So let's denote Jenny's current age as x - Benny's age will be 2x.

In 4 years, Jenny's age will be x+4 and Benny's age will be 2x+4. To calculate what percent of Benny's future age will Jenny's future age be, we have to divide Jenny's future age (x+4) by Benny's future age (2x+4) and then multiply by 100 to get the percentage. Therefore, Jenny's age will be ((x+4)/(2x+4))*100 percent of Benny's age.

Since we don't know their real ages, this is the most accurate answer we can provide, expressed as an algebraic equation. In real-life situation with the real ages known this equation would allow to find out what percent of Benny's age will Jenny’s age be in 4 years.

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Final answer:

If Jenny's age is x, Benny's age is 2x. In 4 years, Jenny's age will be x+4 and Benny's will be 2x+4. To calculate what percent of Benny's age Jenny's age will be, we can use this formula: ((x+4)/(2x+4)) × 100.

Explanation:

Let's start by expressing Benny's age in terms of Jenny's age. If Benny's age is currently 200% of Jenny's age, then mathematically, we can say:

Benny's age = 200% of Jenny's age

B = 2 × x

Now, let's assume Jenny's age is represented as J. So, Benny's age is 2 × x.

If we want to find out what percent of Benny's age Jenny's age will be in 4 years, let's calculate it step by step.

In 4 years, Benny's age will be:

Benny's age in 4 years = Benny's current age + 4

Benny's age in 4 years = 2 × x + 4

Jenny's age in 4 years will be:

Jenny's age in 4 years = Jenny's current age + 4

Jenny's age in 4 years = x + 4

Now, let's find out what percent of Benny's age Jenny's age in 4 years will be:

Percent = (Jenny's age in 4 years / Benny's age in 4 years) × 100

Percent = (x + 4) / (2 × x + 4) × 100

This calculation will give us the percentage of Jenny's age compared to Benny's age in 4 years.

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Convert 27 ounces into grams.

Hint 1 ounce = 28.35 grams

27 ounces = [blank] grams

Enter your answer as the number that correctly fills in the blank

Round the answer to two decimal places, like this: 42.53

Answers

Answer:

the answer is 765.45

Step-by-step explanation:

if I ounce equals 28.35 grams

then 27 ounces equals to 28.35 ×27

=765.45

which is already in two decimal places

Find the equation of the tangent to the circle x²+y²=169 at the point (5,12)

Answers

Answer:

Step-by-step explanation:

hello :

use equation for this circle  : the center is : O(0,0)

the radius is 13

let (∆) this tangent in A(5,12)  where an equation is : y-y1 = m(x-x1)

x1 = 5     and    y1 =12    calculate : m the slope of this tangent

but (∆)  tangent in A(5,12) for this circle : means the line (OA)⊥tangent(∆)

the slope of (OA)×m = -1

but the slope of (OA)= (12-0)/(5-0)=12/5

(12/5)×m =-1   so : m=-5/12

an equation for this tangent is  y-12 = (-5/12)(x-5)

Answer:

12y + 5x = 169

Step-by-step explanation:

Slope of the normal:

(12-0)/(5-0)

12/5

Slope of the tangent

-5/12

y - 12 = (-5/12)(x - 5)

12y - 144 = -5x + 25

12y + 5x = 169

Convert 242 dm to feet. Round to 1 decimal.

Answers

Answer:

it is 79.4 ft.

Step-by-step explanation:

u just have to round until it gets to one decimal




Sharon and Jacob started at the same place. Jacob walked 3 m north and then 4 m west. Sharon walked 5 m south and 12 m east. How far apart are Jacob and Sharon now?
A) 5 m
B) 8 m
C) 13 m
D) 18 m

Answers

Answer:

d

Step-by-step explanation:

The correct answer is option C: 13 meters. Jacob and Sharon are approximately 13 meters apart.

To determine how far apart Jacob and Sharon are now, we first need to find their final positions and then calculate the distance between those points.

Step-by-Step Solution

→ Jacob's Movement:

He walked 3 meters north and then 4 meters west.

→ Final position of Jacob: (-4, 3).

Sharon's Movement:

→ She walked 5 meters south and then 12 meters east.

→ Final position of Sharon: (12, -5).

To find the distance between their final positions, we can use the Pythagorean theorem. The distance d between the points (-4, 3) and (12, -5) is calculated as follows:

→ d = √[(12 - (-4))² + (-5 - 3)²]

= √[(12 + 4)² + (-8)²]

= √[(16)² + (8)²]

= √[256 + 64]

= √320

= √(16 × 20)

= 4√20

= 4√(4 × 5)

= 8√5

≈ 13 meters

→ Thus, Jacob and Sharon are approximately 13 meters apart.

Ana bikes for 5.5 hours. She covers a distance of 57.75 mi. Assuming she bikes at a constant speed, how fast was Ana biking? in ratios of
1-4 and 20

Answers

Answer:the answer is D. because if you do 57.75 divided by 5.5 you get 10.5 mi/h

Step-by-step explanation:

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