A rectangle has length (x + 5)cm and width (x –2)cm. Its area is 60 cm 2

Answers

Answer 1

Area = length x width

60 = (x+5) (x-2)

60 = x^2 + 3x -10

Subtract 60 from both sides:

x^2 +3x -70 = 0

Solve for x by finding 2 numbers when added together = 3 and when multiplied by each other = -70

x = -10 and 7

Since the sides have to be a positive number we need to use 7

The length = x+5 = 7+5 = 12 cm

The width = x-2 = 7-2 = 5 cm


Related Questions

the bearing of a plane from an air port is 65 calculate the bearing of the airport from the plane

Answers

Answer:

245°

Step-by-step explanation:

the bearing is 180° + 65° = 245°

HOPE THIS HELPS

the gradient of the line y = 4 -2x ​

Answers

Answer:

-2

Step-by-step explanation:

the slope-intercept form

-2
slope intercept form

A plane leaves an airport traveling at 400 mph in the direction N 45° E. A wind is blowing at 40 mph in the direction N 45° W. What is the ground speed of the plane?

400 mph
402 mph
429 mph
440 mph

Answers

i would say c maybe?

Answer: B - 402

Edge 2020

The perimeter of a rectangular court is 224 feet. The length is 4 feet more than the width. Write and solve an equation to find the dimension of the court.​

Answers

P=224ft
l=4ft+w
P=2l + 2w
224=2(4+w) + 2w
224=8+2w+2w
224=8+4w
224-8=4w
216=4w
w=216/4
w=54ft

l=4ft+54ft
l=58ft

can some1 pls answer this pls pls​

Answers

Answer:

Step-by-step explanation:

if x-y=9,x²+y²=27,then xy=?​

Answers

Answer:

xy = - 27

Step-by-step explanation:

Note that

(x - y)² = x² - 2xy + y² ← substitute given values, that is

9² = 27 - 2xy

81 = 27 - 2xy ( subtract 27 from both sides )

54 = - 2xy (divide both sides by - 2 )

- 27 = xy

help , thanks for your help , a farm grew 19.8 tons of wheat in 2013 . The farm's wheat output increased by 9.8% from 2014 and by 5.1% from 2015 , which expression represents a strategy bfor estimating the total output of wheat , in tons in 2015? ​

Answers

Answer:

Step-by-step explanation:

D is a rough estimate because the actual output would be

9.8(1.098)(1.051)

The semi-circle has a diameter of 8. What is the perimeter of the semi-circle?​

Answers

Answer:

roughly 12.56 units

Step-by-step explanation:

Since the perimeter of a circle is 2*pi*r, we can divide it by two or multiply by half in order to find the perimeter of a semicircle

half of the diameter is the radius, so 8/2 =4, r=4

Plug in what we know...

C=2*pi*4

Solve

2*3.14*4

25.12

divide by 2

25.12/2=12.56

12.56 units is the perimeter

Answer:

Approx. 20.566 units

Step-by-step explanation:

Find the circumference of the whole circle first by doing:

C = 2πr

r = 4 (8 divided by 2)

C ≈ 25.133

Then divide that by two because a semi-circle is half a circle:

12.566

Then add 8 (diameter) to that number for the open side.

Hope this helps :)

А. 3х – 1 = 7
В.
3x = 8

Answers

hi! what’s the question? i believe you only put two answers

Given the equation 4(3n-7) = -19, what is the first step you could use to solve for n?​

Answers

Answer:

3/4

Step-by-step explanation:

4(3n-7)=-19

3n-7=-19/4

3n=-19/4+7

3n=-19/4+28/4

3n=9/4

n=(9/4)/3

n=(9/4)(1/3)

n=9/12

simplify

n=3/4

Answer:

3/4

You would have to divide both sides by 4

Step-by-step explanation:

[tex]\frac{4(3n-7)}{4} =\frac{-19}{4}[/tex] ( divide both sides by 4 )

[tex]3n-7= -\frac{19}{4}[/tex]  ( simplify )

[tex]3n-7+7=-\frac{19}{4} +7[/tex] ( add 7 to both sides )

[tex]3n=\frac{9}{4}[/tex]  ( simplify )

[tex]\frac{3n}{3} =\frac{\frac{9}{4} }{3}[/tex]  ( divide both sides by 3 )

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

Can someone pls help me with this ???

Answers

Answer: x and y coordinate

Step-by-step explanation:

Please help, I just need this and I’m done and I can go play Xbox

Answers

Step-by-step explanation:

The top answer is x and the bottom answer is 14.

-g + 2(3+g) = -4(g+1)

Answers

Answer:

g= -2

Step-by-step explanation:

Answer:

g=−2

Step-by-step explanation:

regroup: 2(3+g)−g=−4(g+1)

expand: 6+2g−g=−4g−4

simplify: 6+g=−4g−4

add 4 to both sides: 6+g+4g=−4

simplify again: 6+5g=−4

5g=−10

divide 5

g=-2

Solve each equation. Leave the answer as an improper fraction. 16x^2 = 49​

Answers

Answer:

7/4

Step-by-step explanation:

Answer:

The Answer would be 7/4 as an Improper fraction

Step-by-step explanation:

2/5 times 6 enter the product in simplest form.

Answers

Answer:

2 2/5

Step-by-step explanation:

2/5 x 6 = 12/5 = 2 2/5

Hope that helps!

The cost of a phone call at a hotel is determined by the formula
C = 0.35t + 0.6
Where C is the cost in dollars and T is the length of the call, in minutes.
What is the length of a call that costs 5.85
(a) 3 minutes
(b) 6 minutes
(c) 15 minutes
(d) 18 minutes
Show your answer for Brainliest

Answers

C = $5.85

$5.85 = 0.35t + 0.6
-.6 -.6

$5.25 = 0.35t
------- --------
.35 .35

15 = t

15 minutes

If anybody answers these questions I will get them brainliest and if somebody else verifies that it is the correct answer I can give you a thanks.

Answers

Part (a)

Answer: x^3 + 12x^2 + 47x + 60

--------------------------

Work Shown:

Let's say we have

L = length = x+5W = width = x+4H = height = x+3

To find the volume of the block, we multiply the length width and height.

So,

volume = (length)*(width)*(height)

V = L*W*H

V = LW*(x+3) .... replace H with (x+3)

V = LW*x + LW*3 .... distribute

V = Lx*(W) + 3L*(W)

V = Lx(x+4) + 3L(x+4) .... replace W with x+4

V = Lx^2 + 4Lx + 3Lx + 12L .... distribute

V = Lx^2 + 7Lx + 12L

V = x^2*(L) + 7x*(L) + 12*(L)

V = x^2*(x+5) + 7x*(x+5) + 12*(x+5) .... replace L with x+5

V = x^3 + 5x^2 + 7x^2 + 35x + 12x + 60 .... distribute

V = x^3 + 12x^2 + 47x + 60

x^3 + 12x^2 + 47x + 60 is the polynomial in standard form that represents the volume of the block.

=======================================================

Part (b)

Answer: 336 cubic feet

--------------------------

Work Shown:

We can plug x = 3 into the polynomial we found

V = x^3 + 12x^2 + 47x + 60

V = (3)^3 + 12(3)^2 + 47(3) + 60

V = 27 + 12(9) + 47(3) + 60

V = 27 + 108 + 141 + 60

V = 336

Or we could find the volume like this

V = L*W*H

V = (x+5)*(x+4)*(x+3)

V = (3+5)*(3+4)*(3+3)

V = (8)*(7)*(6)

V = 336

Either way, we get the same volume of 336 cubic feet.

Simplify, must end in positive exponent :)

Answers

Answer:

b^4

Step-by-step explanation:

have a good day

Step-by-step explanation:

[tex] \frac{ ({b}^{8}) (b)}{(b)^{5} } \\ = \frac{ {b}^{8 + 1} }{ {b}^{5} } \\ = \frac{ {b}^{9} }{ {b}^{5} } \\ = {b}^{9 - 5} \\ = {b}^{4} [/tex]

Hope it will help :)

Marie said that the equivalent decimal amount for 7/12 is 0.583. Is she correct yes or no?​

Answers

Answer:

Yes she is correct

Step-by-step explanation:

the list shows 8 of talishas maths quiz scores.

70, 81, 82, 82, 82, 89, 94, 100


what is the mean absolute deviation of her quiz scores?

Answers

Answer: 85

Yupyupyupypu

can anyone tell me the answer for b

Answers

Answer:

88....................

Answer:

88 people

Hope it helps!!!!

Which function has a greater constant rate of change explain. Function A y=10x-3 or function B x 1 2 3 4 5 and y are 20 15 10 5 0

Answers

Answer:

The function B has greater constant

Step-by-step explanation:

[tex]m(b) = \frac{20 - 15}{1 - 2} = - 5 \\ y = - 5x + c \\ when \: y = 20 \: \: \: \: \: and \: x = 1 \\ 20 = - 5 \times 1 = c \\ c = 25[/tex]

Write down the inequality described by five is greater than the result of taking six away from x", and solve for x.

Answers

Answer:

x < 11

Step-by-step explanation:

Taking the problem piece by piece;

five is greater than

5 >

the result of taking six away from x

x - 6

Solve for x;

5 > x - 6

5 + 6 > x

11 > x

x < 11

Find the value of x in the figure below 13x+8 2x+7

Answers

Step-by-step explanation:

step 1. (13x + 8) + (2x + 7) = 180 (definition of same side interior angles)

step 2. 15x + 15 = 180 (like terms)

step 3. 15x = 165 (subtract 15 from each side)

step 4. x = 11. (divide both sides by 15)

What is the least common multiple of 12, 18, and 45?

Answers

Answer:

180

Step-by-step explanation:

simplify the surd 3√ 20 +√ 45 ​

Answers

Answer:

9[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]

Simplify the radicals

[tex]\sqrt{20}[/tex]

= [tex]\sqrt{4(5)}[/tex]

= [tex]\sqrt{4}[/tex] × [tex]\sqrt{5}[/tex]

= 2[tex]\sqrt{5}[/tex]

[tex]\sqrt{45}[/tex]

= [tex]\sqrt{9(5)}[/tex]

= [tex]\sqrt{9}[/tex] × [tex]\sqrt{5}[/tex]

= 3[tex]\sqrt{5}[/tex]

Then

3[tex]\sqrt{20}[/tex] + [tex]\sqrt{45}[/tex]

= 3(2[tex]\sqrt{5}[/tex] ) + 3[tex]\sqrt{5}[/tex]

= 6[tex]\sqrt{5}[/tex] + 3[tex]\sqrt{5}[/tex]

= 9[tex]\sqrt{5}[/tex]

9/- 7dndusjjsjddkkdkdksksjdid

Helpppppp!!!!!!!!!!!

Answers

Answer:

just do pythagorean theorem  

Step-by-step explanation:

Answer:

Step-by-step explanation:

Remark

This is a Pythagorean Problem

Formula

a^2 + b^2 = c^2

a = 5

b = ?

c = 9

Solution

5^2 + b^2 = 9^2             Expand the givens

25 + b^2 = 81                  Subtract 25 from both sides

25-25+b^2 = 81- 25

b^2 = 56

√b^2 = √56

b = √8*7

b = √2*2*2*7

b = 2 √2*7

b = 2 √14

For every 2 prime factor under the square root sign, 1 of them can be taken out from under the root and the other is thrown away.

Here is a square inscribed in a circle with radius 1 meter. What is the perimeter of
the square? Explain or show your reasoning

Answers

Answer:

[tex]4\sqrt{2}[/tex]

Step-by-step explanation:

distance formula:[tex]\sqrt{\left(x_2-x_1\right)^{2}+\left(y_2-y_1\right)^{2}}[/tex]

set square to be centered on the origin and find the distance between 2 of the connected points

[tex]\sqrt{\left(3-2\right)^{2}+\left(2-1\right)^{2}}[/tex]

= [tex]\sqrt{\left(1\right)^{2}+\left(1\right)^{2}}[/tex]

= [tex]\sqrt{2}[/tex]

multiply by 4 as it is a square and all of its sides are equal

[tex]4\sqrt{2}[/tex]

insert units

[tex]4\sqrt{2}\ \ meters[/tex]

The perimeter of the square is √32.

Given to us

the radius of the circle is 1 meter

What is the diagonal of the square inscribed in the circle?

As we can see in the figure AB is the diagonal of the square and diameter of the circle. therefore,

AB = Diagonal of the square = Diameter of circle = 2 x Radius = 2 meter

We know the diagonal of a square is equal to the product of √2 and the side of the square.

[tex]Diagonal = side \times {\sqrt2}[/tex]

Substitute the value,

[tex]2 = side \times {\sqrt2}\\\\side = \dfrac{2}{\sqrt2}\\\\side ={\sqrt2}[/tex]

What is the perimeter of the square?

The perimeter of the square is four times the side of the square.

[tex]Perimeter = 4\times (side)[/tex]

Substitute the value,

[tex]Perimeter = 4\times (\sqrt2)\\\\Perimeter = 4\sqrt2 = \sqrt{2\times 16} = \sqrt{32}[/tex]

Hence, the perimeter of the square is √32.

Learn more about Square:

https://brainly.com/question/11611396

Write the equation in vertex farm
x2 - 8x + 10 = 0

Answers

Answer:

 

x = 4 + √ 6 , 4 − √ 6 hope this is correct-

PLSS HELP BRAINLIEST

Answers

Answer:

y=-2x-1

Step-by-step explanation:

1st step is to find the slope

which is....

-2

2nd step would be find y-intercept

which is....

-1

soooo your equation would be....

y=-2x-1

Other Questions
A fuel tank for a rocket in space under a zero-g environment is rotated to keep the fuel in one end of the tank. The system is rotated at 3 rev/min. The end of the tank (point A) is 1.5 m from the axis of rotation, and the fuel level is 1 m from the rotation axis. The pressure in the nonliquid end of the tank is 0.1 kPa, and the density of the fuel is 800 kg/m3 . What is the pressure at the exit (point A) 48 minutes decreased by 75% is 10 cm15 cmA) 5V 13 cmC) 5V 14 cmB) 5V5 cmD) 5 cm Read the excerpt from The Secret Garden:Why does it make you angry when you are looked at? she inquired one day.I always hated it, he answered, even when I was very little. Then when they took me to the seaside and I used to lie in my carriage everybody used to stare and ladies would stop and talk to my nurse and then they would begin to whisper and I knew then they were saying I shouldnt live to grow up. Then sometimes the ladies would pat my cheeks and say Poor child! Once when a lady did that I screamed out loud and bit her hand. She was so frightened she ran away.She thought you had gone mad like a dog, said Mary, not at all admiringly.I dont care what she thought, said Colin, frowning.What is the meaning of the figurative language mad like a dog?dreadfully sadrighteously angryout of controlhaving strong instincts what is the answer for number 8 and 9 please cul es el resultado de 1/2 + 1/4 + 0.25 I need help and please show work what is the average velocity of a van that moves from 0 to 60 m east and 20 seconds The three schools of thought in China were created becauseA: the three men were boredB: China needed a solution to peaceC: The Shang was overthrownD: The Mandate of Heaven was lost Miguel is ready to write the conclusion to his paper about what would be the best sentence for Miguel to use inthe value of taking etiquette classes, which teachhis conclusion?students polite behavior.Not everyone should have to take etiquette classesEtiquette classes would be nice.Courtesy and consideration are skills that willbenefit a person throughout life.O Students should also learn how to sympathize withother people. . There are 14 boys and 9 girls in Mrs. Saldaa's math class. What is the ratio of students to teachers? A 14/1B 9:1 C 23:1 D 23 to 2 What Congressional Reconstruction successful? Why/why not Ariel sold bags of gourmet popcorn for the school fundraiser. She sold 30 bags in two weeks, raising $112.50 for the school. How much did a bag of gourmet popcorn cost? Corey spies a bald eagle in a tall tree. He estimates the height of the tree to be 60 feet and the angle of elevation to the bird from where he stands to be 64. The leaves on the tree make it difficult for Corey to watch the bird, so he takes many steps away from the tree to get a better view. He now estimates his angle of elevation to be 37.How many feet did Corey step back to gain a better view of the bird? Round your answer to the nearest hundredth of a foot. The water was pumped out of a backyard pond. What is the domain of thisgraph? help! help! plz give 4 different between orbit and orbital Thomas Paine's Common Sense was important because it: Pls help me ASAP!!! I will vote brainlyest! I'm having trouble translating this into french, could someone translate these 2 sentences into french so I can compare my translation. What I think about the written press is it's out of date. In my opinion, newspapers are in danger since it is so much easier to read/watch the news online. HELP QUICK!! solve by substitution and show work please