The length of a rectangle is 8 ft longer than twice the width. If the perimeter is 64 ft, find the length and width of the rectangle.

Answers

Answer 1

Answer:

8x*x=64

8x^2=64

x^2=8

x=sqrt8

length 8sqrt8

width-sqrt8

Step-by-step explanation:


Related Questions

Write 23.4571 correct to
4 significant figures

Answers

Answer:

Your answer would be 23.46

I need help on this question, think any of you guys could help?

Answers

Answer:

We need to find the circumference, and in order to find the circumference we must know the formula for it.

Formula for circumference of a circle;

a = 2πr

Where π is the pi(3.14 or 22/7), and r is the radius which is half of the diameter.

Since we are given the diameter, we need to find the radius. So 1/2 of the diameter (26 x 1/2) = is 13

Now we just plug in the actual values in the formula:

a = 2πr

a = 2 x 3.14 x 13

a = 18.84 feet

But now, we need to find how many revolutions it would take to get to 500 feet.

So we divide 500 feet by 18.84 feet;

500/18.84 = 26.53, around 27 revolutions.

suppose y varies directly with x, and y=24 when x= 8. What is the value of y ehen x= 10​

Answers

Answer: 30 = y

Step-by-step explanation: When we have two sets of directly related coordinates, x₁ and y₁, and x₂ an y₂, we can use the ratio below to find the missing value.

y₁ / x₁ = y₂ / x₂

We know that y = 24 when x = 8.

So one set of coordinates will be 24 and 8.

We want to know the value of y when x = 10.

So the other coordinates will be y and 10.

So we have 24/8 = y/10.

Now, we can solve for y using cross products.

So we have (24)(10) which is 240 and (8)(y) is 8y.

So we have 240 = 8y.

Now dividing both sides by 8, we have 30 = y.

So 30 is equal to y.

explain why cant a cross section be a sphere

Answers

We know that of all the shapes, a sphere has the smallest surface area for its volume. The intersection of a plane figure with a sphere is a circle. All cross-sections of a sphere are circles. In the above figure, we can see, if a plane cuts the sphere at different angles, the cross-sections we get are circles only.

Using this and the knowledge that 32° F = 0°C and 212°F = 100°C, find an equation that computes Celsius temperature in terms of Fahrenheit temperature; i.e., an equation of the form C = “an expression involving only the variable F.”
c=(f-32)/1.8

Likewise, find an equation that computes Fahrenheit temperature in terms of Celsius temperature; i.e. an equation of the form F = “an expression involving only the variable C.”
f=1.8c+32

(a) How cold was it in Oslo in °F?

(b) What temperature is it the same in °F and °C?

Answers

Answer:

(a)

Step-by-step explanation:

The relationship between temperatures measured in Fahrenheit, and in Celsius can be represented using equations.

The equations are: [tex]F = 1.8C + 32[/tex] and [tex]C = \frac{(F - 32)}{1.8}[/tex].The temperature in Oslo is [tex]60.8^oF[/tex].[tex]-40^oF[/tex] is equivalent to [tex]-40^oC[/tex]

Given that:

[tex](F_1,C_1) = (32,0)[/tex]

[tex](F_2,C_2) = (212,100)[/tex]

First, calculate the slope (m)

[tex]m = \frac{C_2 - C_1}{F_2 - F_1}[/tex]

So we have:

[tex]m = \frac{100 - 0}{212 - 32}[/tex]

[tex]m = \frac{100}{180}[/tex]

[tex]m = \frac{5}{9}[/tex]

So, the equation is calculated using:

[tex]C= m(F - F_1) + C_1[/tex]

So, we have:

[tex]C = \frac 59(F - 32) + 0[/tex]

[tex]C = \frac 59(F - 32)[/tex]

Rewrite as:

[tex]C = \frac{(F - 32)}{9/5}[/tex]

[tex]C = \frac{(F - 32)}{1.8}[/tex]

To solve for F, we multiply both sides by 1.8

[tex]1.8C =F - 32[/tex]

Add 32 to both sides

[tex]F = 1.8C + 32[/tex]

(a) The temperature of Oslo in F

We have:

[tex]C = 16[/tex]

So, we make use of:

[tex]F = 1.8C + 32[/tex]

[tex]F = 1.8 \times 16 + 32[/tex]

[tex]F = 60.8[/tex]

The temperature in Oslo is [tex]60.8^oF[/tex]

(b) When F = C

We have:

[tex]F = 1.8C + 32[/tex]

Substitute F for C

[tex]F = 1.8F +32[/tex]

Collect like terms

[tex]F - 1.8F =32[/tex]

[tex]-0.8F =32[/tex]

Make F the subject

[tex]F = \frac{32}{-0.8}[/tex]

[tex]F = -40[/tex]

Hence,

[tex]-40^oF[/tex] is equivalent to [tex]-40^oC[/tex]

Read more about equations at:

brainly.com/question/16911650

4c=3 solve for c please

Answers

Step-by-step explanation:

Given equation is:-

4c=3

Dividing both sides by 4, we get

4c/4=3/4

By doing simply, we get

c=¾

Hence, the value of c will be ¾.

can somebody help me with this

Answers

Hey there!

5x = 120 {Obtain a formula for x }

=> [tex]\fbox{5x = 120}[/tex] { Divide both side by 5}

=> [tex]\fbox{5x/5 = 120/5}[/tex] { divide 5x by 5}

=> [tex]\fbox{x = 120/5}[/tex] { Divide 120 by 5}

=> [tex]\fbox{x = 24}[/tex]

Therefore, x = 24°

A social security number contains nine digits such as 000000000 How many different social security numbers can be formed using any numerals from 0 to 9?

Answers

Answer:

1 billion social security numbers

Step-by-step explanation:

An engine is operating at 25% of its full power. Which number line shows a point that
represents 25%?

Answers

where's the number line?

13.88 times 6 times 4

Answers

Answer:

333.12

Step-by-step explanation:

13.88x6= 83.28x4=333.12

333.12


13.88 x 6 = 83.28 x 333.12

Suppose a firm loses $4,000 in its first month, but increases its profit by $575
each month for the first year. Find the firm's total profit or loss in the first
year.
O Loss of $10,050
O Loss of $2,250
O Profit of $2,325
O Profit of $85,950

Answers

Answer:

profit of $2325

Step-by-step explanation:

so a loss of $4000 in the first month, with profit of $575 each month. let's say a year have 12 months, first month with loss, the other 11 months with profit. so, $575 x 11 months = $6325. $6325 is the amount for 11 months with $575 profit. take $6325 and minus with $4000 and you will get $2325, which is the profit for the first year.

HELP PLEASE
The mean gas mileage for cars driven by the students at Chillville High School is 28.0 miles per gallon, and the standard deviation is 4.0 miles per gallon. Assume that the gas mileages are normally distributed.

What percent of the cars driven by the students at Chillville have gas mileages between 24.0 and 32.0 miles per gallon?
68%
95%
32.8%
34%

Answers

Using the Empirical Rule, it is found that 68% of the cars driven by the students at Chillville have gas mileages between 24.0 and 32.0 miles per gallon.

What is the Empirical Rule?

It states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.Approximately 95% of the measures are within 2 standard deviations of  the mean.Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, considering the mean of 28 mpg and the standard deviation of 4 mpg, we have that 24.0 and 32.0 mpg is within 1 standard deviation of the mean, hence the percentage is of 68%.

More can be learned about the Empirical Rule at https://brainly.com/question/24537145

Plz awnswer this in fullll plzzzzzzzzzzzzzz

Answers

Answer:

158.76 square centimeters

Step-by-step explanation:

The quadrilateral is made up of 2 right triangles if you divide the quadrilateral using line segment BD.

The triangle on the bottom has an area of 11.7*15.6/2, which is 91.26.

The triangle on the top has an area of 7.5*18/2, which is 67.5.

If you add up the area of these 2 triangles, you get 67.5 + 91.26 = 158.76

Therefore, the answer is 158.76 square centimeters.

I hope this helped you.

Answer:

It would be 158.76 square centimeters

Step-by-step explanation:

please help!

Find the length of the hypotenuse in the following figure,

Answers

Answer:

The hypotenuse of the right triangle is 20.

Step-by-step explanation:

c=[tex]\sqrt\ a^2+b^2[/tex]

[tex]\sqrt{16^2+12^2}=20[/tex]

Given z=-4-6i
Write down the conjugate of z

Answers

Answer:

z = -4 + 6i

Step-by-step explanation:

A math conjugate is formed by changing the sign between two terms in a binomial. For instance, the conjugate of x+y is x−y . We can also say that x+y is a conjugate of x−y . In other words, the two binomials are conjugates of each other.

a pair of socks cost $18.50 the markup is 5% the taxes​

Answers

Answer:

$19.43

Step-by-step explanation:

PLEASE HELP ASAP!!! WILL GIVE BRALIEST!!

Answers

Answer:

Bree hikes for 4 kilometers per hour

Answer:

D

Step-by-step explanation:

x represents time and y represents disrtance in relation to time.

(when you look at 1 sec you can tell that the y value is 4 meaning that the realtion is y=4x)

Identify the slope in the
following table of values.

Answers

Answer:

X =0

Y=0

..........Am i right


Yesterday, Alonso walked 6 miles in 2 hours. Assume he continued at that pace. Complete the table in the interactive, and graph the relationship.

What equation represents the relationship?


Answers

Answer: y= 3x

Step-by-step explanation:

i have the question in the picture below but I have to put more words so here ya go

Answers

Answer:

I think the answer is either B or D

Step-by-step explanation:

Let's see

<ADT and <TDSBoth lies on a line .They makes a complete line

So they are Linear pairs

Option B

Find the missing dimension use the scale factor 1:20 if the length of the model is 3.75 feet to find the actual length

Answers

Answer:

i think that you forgot to attach the model?

Step-by-step explanation:

In ΔRST, r = 3.9 inches, s = 5.6 inches and t=6.1 inches. Find the measure of ∠S to the nearest 10th of a degree.

Answers

Answer:

63.7

Step-by-step explanation:

i just know

Answer:

27.1

Step-by-step explanation:

a jet airplane holds about 65,000 gallons of gas. It uses about 7,460 gallons when flying between new york and los angeles. Round 65,000 to largest place value.

Answers

Answer:

70,000

Step-by-step explanation:

hey you asked me to round. =D.

Granola costs $3.25 per pound. Raisins cost $6.50 per pound. How many pounds of raisins can be mixed with 10 pounds of granola to make a mixture that is $4.00 per pound?

Answers

You multiply the pounds cost$ by the 10 pounds when you get that amount you divide it by the cost of granola per pound that will give you 4.$ per pound

wider after the boat passes. The wake is the same width as the boat
when it first forms, and then it gets wider in proportion to the square root of the distance from the boat. If a 2-meter wide boat passes your
position at 5 m/sec, which domain is appropriate for a function that
models the width of the wake, f(x), and the distance from the boat, x?

a) all numbers greater than 2

b) all rational numbers

c) all positive numbers

d) all numbers greater than 5

Answers

Yue eyeyeyey and president of the

Write the number 689,000,000,000,000 in scientific
notation.

Answers

Answer:

6.89 x 10^14

Step-by-step explanation:

Theo budgets 154 for karate classes he buys a karate uniform called a dogi for 12 if it cost 8 to attend each karate class which inequality below represents the number of classes c can Theo can take

Answers

Answer:

154 divide by 12 when you get your answer multiply it by 8

18) The school that John goes to is selling tickets to the annual talent show. On the first day of ticket
sales the school sold 3 senior citizen tickets and 5 student tickets for a total of $71. The school
took in $190 on the second day by selling 10 senior citizen tickets and 12 student tickets. Find
the price of a senior citizen ticket and the price of a student ticket.

Answers

Answer:

Student ticket=$10. Senior ticket=$7

Step-by-step explanation:

If we say Student ticket price = Y. and senior ticket price = X. Then we can say:

[tex]3x+5y=71\\10x+12y=190[/tex]

We can rewrite one of the equations as y equals:

[tex]10x=190-12y[/tex]

Then, we simply solve for x.

[tex]\frac{10x=190-12y}{10}=x=19-1.2y[/tex]

Then, we use the other equation and replace x with the equation we just solved

[tex]3(19-1.2y)+5y=71\\[/tex]

We simplify and it becomes:

[tex]57-3.6y+5y=71[/tex]

Then we subtract 57 from each side and get:

[tex]-3.6y+5y=-14[/tex]

Next, we combine the y and get:

[tex]1.4y=14[/tex]

Then we divide by 1.4 and get:

[tex]\frac{1.4y=14}{1.4} =y=10[/tex]

This means that the cost per student ticket is $10

Next we replace the y value in an equation with 10 and solve:

[tex]3x+5y=71\\3x+5(10)=71\\3x+50=71\\[/tex]

Then we subtract 50 from each side:

[tex]3x+50=71\\-50\\3x=21[/tex]

Finally, we divide each side by 3:

[tex]\frac{3x=21}{3} =x=7[/tex]

This means that each senior ticket costs $7

XYZ’s print publication charges $15 for each of the first four lines of an ad, and $9 for each additional line. Express the cost of an x-line ad, c(x), as a piecewise function.

Answers

By using the given information we can infer the domains of the function, and we will see that the piecewise function is:

c(x) = $15*x   if  0 ≤ x ≤ 4

c(x) = $60 + 9*(x - 4)   if x > 4.

How to get the piecewise function?

We know that the print charges $15 for each of the first four lines on an add, and $9 for each additional line.

Then we will have one piece for x between 0 and 4, and another piece for x larger than 4. The function will be:

c(x) = $15*x   if  0 ≤ x ≤ 4

c(x) = $60 + 9*(x - 4)   if x > 4.

Where the y-intercept on the second part is equal to the cost for the first four lines of the add.

If you want to learn more about piecewise functions, you can read:

https://brainly.com/question/3628123

What is the length of EG?

Answers

Answer:

5 in

Step-by-step explanation:

Answer:

EG=5

Step-by-step explanation:

Congruent means equal to in math so since it is equal to the other triangle it must be the same in some way

and with the 90-degree angle, it shows you where it is pointing

with angle B=F

E=A

G=C

the lines connecting them are also equal

AB=EF

BC=FG

EG=AC

Since AC=5

threrfore EG also equals 5

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