Simplify the following (3 √40)(4 √5)

Answers

Answer 1

Answer:

169.70

Step-by-step explanation:

Answer 2

Answer:

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

Step-by-step explanation:

3[tex]\sqrt{40}[/tex] · 4[tex]\sqrt{5}[/tex] = (3[tex]\sqrt{5}[/tex]·[tex]\sqrt{4}[/tex]·[tex]\sqrt{2}[/tex]) x 4[tex]\sqrt{5}[/tex]

= 3 · 2 · 5 · 4 [tex]\sqrt{2}[/tex]

= 120[tex]\sqrt{2}[/tex]


Related Questions

write linear equation in slope intercept form and this are 3 questions a lil help please

Answers

y = 1.5x + 18
y = -2x + 30
y = -500x + 3000

What kind of a fraction is 6 1/3?

Answers

Answer:

6 1/3 Is a mixed fraction

Mixed fraction because an improper fraction would have a greater numerator then a denominator and wouldn’t be simplified

2 Fifteen percent of a bag of chocolate
candies have a red coating on them. How
many red pieces are in a bag of 60
candies?

Answers

Answer:0.25 or 25%  

Step-by-step explanation:

Help I’ll give you brainliest

Answers

Answer:

your answer will be A

Step-by-step explanation:

have a nice day/ night

7th grade math problem

Answers

Answer:

x=9

JKL = 108 degrees

KLJ = 27 degrees

LJK = 45 degrees

Step-by-step explanation:

Add all the values of the triangle angles together to get 20. Then divide 180 by  20 to get 9 (The sum of all the angles in the triangle always equals 180 degrees).

JKL = 12x = 12(9) = 108

KLJ = 3x = 3(9) = 27

LJK = 5x = 5(9) = 45

This is the graph of f(x). What is the value of (2)?
101Y
х
-5
5
5
O A. 16
B. 2.
O C. 8
O D. 4

Answers

Answer:

Step-by-step explanation:

f(2) = 4

find the value of x. ​

Answers

Sin x=24/29
Therefore x=sin^-1 24/29

Answer:

x ≈ 55.9°

Step-by-step explanation:

Using the sine ratio in the right triangle

sinx = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{24}{29}[/tex] , then

x = [tex]sin^{-1}[/tex] ([tex]\frac{24}{29}[/tex] ) ≈ 55.9° ( to 1 dec. place )

what’s the answer for this please? Thankssss!! Only if you know

Answers

Answer:

I Dont know the answer Sorryyyyyyyyyy

The fabric cost 7cents per square inch. She will only pay for the fabric used to cover the box, even if there is waste or extra. How much money did shyla spend on fabric? Is the box is 7 by 11by 8 inchs

Answers

Answer:

Shyla will pay about 63 cents to cover the box

Step-by-step explanation:

Length of the box ( l ) = 7 inches

Width of the box (b) = 11 inches

Height of the box (h) = 8 inches

We can solve this equation by following two simple steps.

1. The first step is to find the total surface area of the box. This is the total area that the decorative fabric will be covering.

We can get this by the following formula:

SA=2( length X width) +2( length X height )+2(height X width)

SA = 2( 7 X 11 ) + 2(7 X 8) + 2 (8 X 11 ) = 442 square inches

2. The second step is to divide the total surface area by the price of the fabric per square inch.

This will be 442 square inches divided by 7 cents per square inch  = 63.14 cents

Shyla will pay about 63 cents to cover the box

Which equation has the greatest rate of change?
A.
y=2x+5
B.
y=x+6
C.
y= -5x+2
D.
y=2/3x+4

Answers

c i’m pretty sure because -5 is the biggest

A dog walker charges a $ 30 sign-up fee to cover insurance costs and $ 27 per walk. Which expression represents the total cost, in dollars, to hire the dog walker for w walks?

Answers

Answer:

30 + 27(w)=189

Step-by-step explanation: w=7 btw (if u need it)

Brainliest?

The required expression that models represent the total cost, in dollars, to hire the dog walker for w walks is t = 27w + 30.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
A dog walker charges a $ 30 sign-up fee to cover insurance costs and $ 27 per walk.
Let the total cost be t for the w walks.
So, the expression is given as,
t = 27w + 30

Where 27w represents the cost of w walks.


Thus, the required expression that models represent the total cost, in dollars, to hire the dog walker for w walks is t = 27w + 30.

Learn more about models here:
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A point R (-2,5) is mapped to point R',as described by a translation of 6 units to the rights and 7 units down.Mark R' on the coordinate plane.

Answers

Answer:

(4, -2)

Step-by-step explanation:

Given a point R (-2,5), if the point R' is described by a translation of 6 units to the rights and 7 units down, then the coordinate of R' will be;

6 units to the rights is towards the positive x axis

7 units down is towards the negative y axis

R' = (-2+6, 5-7)

R' = (4, -2)

Hence the coordinate point of R' on the plane is (4, -2)

PLS help!!! PLS help!!! PLS help!!!

Answers

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A

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Tasha lists all the multiple of 3 from 3 to99. Tony lists all the multiples of 5 from 5 to100. What is the first number that is on both lists? The second.

Answers

Answer:

Multiples of 3 = 3, 9Multiples of 5 = 5, 10

Step-by-step explanation:

In a list of 3 to 99, the first multiple of 3 will be none other than 3 itself because when multiplied by 1, you get three.

The second number will be: 3 * 2 = 6

In a list from 5 to 100, the first multiple will be 5 with 5 being a multiple of itself when multiplied by 1.

Second number = 5 * 2 = 10

A person on a moving sidewalk travels 24feet the in 7 seconds. The moving side walk has a length of 180 feet. How long will it take to move from one end to the other?

Answers

Given:

A person on a moving sidewalk travels 24 feet the in 7 seconds.

The moving side walk has a length of 180 feet.

To find:

Time taken by the person to move from one end to the other.

Solution:

A person on a moving sidewalk travels 24feet the in 7 seconds.

The speed of the person is

[tex]\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}[/tex]

[tex]\text{Speed}=\dfrac{24}{7}[/tex]

[tex]\text{Speed}=\dfrac{24}{7}[/tex]

The moving side walk has a length of 180 feet.

[tex]\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}[/tex]

[tex]\text{Time}=\dfrac{180}{\dfrac{24}{7}}[/tex]

[tex]\text{Time}=\dfrac{180}{1}\times \dfrac{7}{24}[/tex]

[tex]\text{Time}=52.5[/tex]

Therefore, the time taken by the person to move from one end to the other is 52.5 seconds.

Factor out the greatest common factor for 18x2 + 42x – 12.

Answers

Answer:

Step-by-step explanation:

factor the coefficients into primes

18 = 3 * 3 * 2

42 = 3* 2 * 7

- 12 = - 2 * 2 * 3

The primes that are underlined are 2 * 3 which is 6

The primes not in the brackets are what is inside the brackets.

6(3x^2 + 7x - 2)

a gemstone in the shape of a rhombus has the measurements shown. Match the measures with the angles.

Answers

Me ayudas por favor con esto es para Hoy por favor

Can someone help me please
I’ll mark you as a brainliest.

Answers

Answer:

He should make the hypotenuse 5 in

Step-by-step explanation:

the pythagorean heoreom states that a^2+b^2=c^2. c is the hypotenuse. You already have a and b, 3 and 4. Plug it in

3^2+4^2=c^2

9+16=c^2

25=c^2

square root each side to isolate

c=5

Can someone please help me with this one

Answers











Hey sorry I need points

Nancy's Diner offers its clients a choice of regular and diet soda. Last night, the diner served 54 regular sodas and 6 diet sodas. What percentage of the sodas served were regular?

Answers

54 + 6 = 60

54/60 * 100

THE ANSWER IS 90%

A student on the track team runs 45 minutes each day as a part of her training. She begins her workout by running at a constant rate of 8 miles per hour for minutes, then slows to a constant rate of 7.5 miles per hour for minutes.

Which equation describes the relationship between the distance she runs in miles, , and her running speed, in miles per hour?

A:

B:

C:

D:

Answers

Answer:

D

Step-by-step explanation:

The basic equation to solve this would be D = RT, which is

D is Distance

R is Rate (speed)

T is time

To find total distance D, we can find individual distances for two legs of the whole.

First Leg:

R = 8

T = a

D = 8a

The length of a rectangle is six times its width.
If the perimeter of the rectangle is 84 ft, find its area.

Answers

The area of the rectangle is 216 square feet

How to determine the area?

Let x represents the length and y represents the width.

So, we have:

x = 6y

So, the perimeter is:

P = 2(x + y)

The perimeter is given as:

P = 84

So, we have:

2(x + y) = 84

Divide by 2

x + y = 42

Substitute x = 6y in x + y = 42

6y + y = 42

Evaluate the sum

7y = 42

Divide by 7

y = 6

Substitute y = 6 in x = 6y

x = 6 * 6

x = 36

The area is calculated as:

Area = xy

So, we have:

Area = 36 * 6

Evaluate

Area = 216

Hence, the area of the rectangle is 216 square feet

Read more about area at:

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A group of 2 adults and 4 children spent $38 on tickets to a museum. A group of 3 adults and 3 children spent $40.50 on tickets to the museum. Based on this information, how much is an adult ticket, and how much is a child ticket?

2a + 4c = 38.00
3a + 3c = 40.50
What values of a and c represent the solution to the system?
a =
c =

Answers

Answer:

a=8

c=5.5

Step-by-step explanation:

solve simultaneously:

2a + 4c = 38.00

3a + 3c = 40.50

times the first eq. by 3 and the second by 2

6a + 12c = 114

6a +6c = 81

subtract from one another

6a + 12c = 114

-6a +6c = 81

6c = 33

c=5.5

3a + 3x5.5 = 40.50

3a= 24

a=8

BRAINLIEST



Plot the following co-ordinates and find the fourth point D to make a square A (-1,3) B (1,-1) C(5,1).

Once you have found the missing coordinate use pythagoras to calculate the length of the sides.

Answers

Answer:

Step-by-step explanation:

Example: Solve this triangle

right angled triangle 5 12 c

Start with: a2 + b2 = c2

Put in what we know: 52 + 122 = c2

Calculate squares: 25 + 144 = c2

25+144=169: 169 = c2

Swap sides: c2 = 169

Square root of both sides: c = √169

Calculate: c = 13

Find the lateral surface area of the triangular prism shown below. PLS HELP

Answers

The answer is D 972cm.
There are two triangles each 54cm squared (9x12/2= 54)
There is one 24x15 rectangle which equals 360cm(2)
There is also one 24x12cm rectangle that equals 288cm(2)
The last shape is a 9x24 rectangle which equals 216cm(2)



54 + 54 + 360 + 288 + 216 = 972cm(2)
It’s d I’m very sure of it !

If x +2 is a factor of
() = 4^3 + − 10
find the value of k.

Answers

Answer:

-11

Step-by-step explanation:

determine the initial value

Answers

Hey there I am just telling you , it seems that your questions is incomplete . Can you kindly post the whole question then I am able to solve it.

please don't mind.

What is the acceleration of a BMW i8 Roadster that goes from 0 to 60 mph in 3.8 seconds? a) in mi/h/s and b) in m/s^2

Answers

Answer:

I need help with my math problem  

Step-by-step explanation:

https://brainly.co m/question/21437269

no space

Joe is buying gift cards that are on sale for 15% off. He uses c – 0.15c to determine the sale price of gift cards. What is an equivalent expression that Joe could also use to determine the sale price of a gift card?

Answers

Answer:

0.85c

Step-by-step explanation:

Given :

Discount on sale = 15%

Price of gift card at discounted price = c - 0.15c

Equivalent expression could be :

(100% - 15%) * price

Price = c

(1 - 0.15)c

0.85c

Pleasee helpp me with this !!!!!!!!!!!!!!! Will mark Brianliest correct answer !!!

Answers

Answer:

4 units left, 5 down

Step-by-step explanation:

Just look at it and count the boxes around

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