The perimeter of the new rectangular piece of glass is 80m.
What is the perimeter of a rectangle?The sum of all sides of a rectangle is the perimeter of the rectangle.A rectangle has two equal lengths and two equal widths.Therefore, the perimeter 'P' of a rectangle is the sum of two equal lengths and two equal widths. That is, 'P=2l+2w' where 'l' is the length and 'w' is the width of the rectangle.
Here, a rectangular piece of glass has a perimeter of 20 meters.
As we know the perimeter P of a rectangle is given by the formula,
P = 2l+2w...(1)
Therefore,
20 = 2l + 2w
20 = 2(l + w)
20/2 = l + w
10 = l + w ....(2)
Now, both the length and width of the rectangle are multiplied by 4,
That is,
The new length of the rectangle is, l = 4l
The new width of the rectangle is, w = 4w
Therefore by substituting this in the equation(1) we get,
P = 2(4l) + 2(4w)
P = 8l + 8w
P = 8(l+w)....(3)
Substitute equation (2) in (3),
That is,
P = 8*10
P = 80m
Learn more about the perimeter of a rectangle at brainly.com/question/19819849
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2/3 divided by 5 (i just need to check)
Answer:
its 0.13
Step-by-step explanation: plz mark brainliest
Answer:
0.1333333
Step-by-step explanation:
simplify the expression -8x + 27/9
Answer:
-8/9x + 3
Step-by-step explanation:
(-8x + 27)/9
divide 9 on both side
-8/9x + 3
what is m3 + 9n when m = 4 and n = 5
Jaime had $37 in his bank account on Sunday. The table shows his account activity for the next four days. What was the balance in Jaime's account after his deposit on Thursday?
Answer:C
Step-by-step explanation:
37 +17.42-12.60-9.62+62.29 = 94.49
8(333.1)I need help please
Answer:
2664.8
Step-by-step explanation:
Construct a tangent to circle O at P.
Answer:
its called perimeter when it is near to dot its called cruve
A store sells three different packs of the same yogurt. Which pack is the best buy? A) 8 containers for $4.04 B) 6 containers for $3.46 c) 4 containers for $2.84
Answer: C) 4 containers for $2.84
Step-by-step explanation:
8/4.04=1.98
6/3.46=1.73
4/2.84=1.41: best value
qual das inequações seguintes e equivalente à inequação -2x <4?
a) x<-2
b) x>-2
c) x<2
d) x>2
Answer:
I dont get your question
need help quick!!!!!
Answer:
x = y = 6
Step-by-step explanation:
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
Please hurry
Select all the points that are on the graph of the line
3x + 5y = 20 ?
Answer:
x=5
y=1
Step-by-step explanation:
3*5=15
5*1=5
15+5=20
Sally has 30 feet of ribbon. She cuts strips each of length 2 2/5 feet from the ribbon. Sally says I can cut 13 of these strips from this ribbon.
Answer: See explanation
Step-by-step explanation:
For us to know the number of strips that Sally can cut from the ribbon, we have to divide 30 feet by 2 2/5 feet. This will be:
= 30 ÷ 2 2/5
= 30 ÷ 12/5
= 30 × 5/12
= 25/2
= 12 1/2 strips
Therefore, the maximum number of strips that Sally can cut is 12 and not 13.
estimate the difference
7 3/4 subtracted by 2 2/5
show your work
Answer:
5 7/20
Step-by-step explanation:
basically, you are going to want to turn these into improper fractions
7 3/4 = 28/4 + 3/4
= 31/4 (no further simplification)
2 2/5 = 10/5 + 2/5
= 12/5
now get common denominator to subtract
31/4 - 12/5
155/20 - 48/20 = 107/20
if you want this back into mixed fraction then convert
107/20 = 5 7/20
Is the relation below a function?
-3
-1
-1
3
у
0
1
2
3
Answer:
I believe it would be "y"
Step-by-step explanation:
Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Answer:
I would say no!Step-by-step explanation:
cause we cannot determine the rule of mapping so y is no an image of xClassifying polynomial expression.
i need help. what do i do and how do I solve this?
80 - [50 - {20 ÷ 2 – (16 - 2÷ 2) ÷ 3}]
80 - [50 - {20/2 - (16 - 2/2) ÷ 3}]
80 - [50 - {20/2 - (15) ÷ 3}]
80 - [50 - {10 - 5}]
80 - [50 - {5}]
80 - [45]
35
Answer:35
Step-by-step explanation:
80-[50-(10-5)
80-(50-5)
80-45=35
16 is the geometric mean of 8 and what other number n
9514 1404 393
Answer:
32
Step-by-step explanation:
The geometric mean relation says ...
16 = √(8n)
256 = 8n . . . . . square both sides
32 = n . . . . . . . . divide by 8
The other number n is 32.
9a + 12b + 2a
Help please !
Answer:
11a+12b
Step-by-step explanation:
9a+12b+2a=11a+12b
9.
The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many acres does she own?
4,800 acres
11.72 acres
1.17 acres
480 acres
[tex]a = 640s[/tex]
[tex]a = 640(7.5)[/tex]
[tex]a = 4800 \: [/tex]
She owns 4800 acres.
Answer:
4,800 acres
Step-by-step explanation:
A nurse wants to simulate the number of male and female births at the hospital where she
works using a random digit table.
Which of the following best simulates this situation?
Answer:
Let the digits 0,1,2,3 and 4 represent the birth of a boy, and let digits 5,6,7,8, and 9 represent the birth of a girl. Use a table of random digits. Choose the first 10 digits in the table and record the number of boy and girl births. Continue to choose batches of 10 digits for a total of 100 times, recording the number of boy and girl births. (possibly B)
pls help quick the blue lines at the bottom are the answer choices
the answer is the third option
Find y when x = 2
y = 30 - 2x
heyyy! i haven't posted a question in a long time lolz. anyways, i really needed help with this!! if you can answer my question i'll give brainliest, thank you
Students from Williams Middle School are also recycling aluminum cans. The data for the numbers of cans brought in each school day for a month were divided by quartiles and summarized in the box plot. Use the drop-down menus to choose the median, interquartile range, and range.
A box plot. The number line goes from 8 to 30. The whiskers range from 10 to 28, and the box ranges from 16 to 20. A line divides the box at 18.
Median:
Interquartile range:
Range:
Answer:
Median is: 18
Interquartile range: 4
Range: 18
Step-by-step explanation:
hope this helps!
What is Cos^-1( -sq2/2)? Pleaseee help ASAPOL
Answer:
s cos^(-1)(-(q^2 s)/2) + sqrt(4 - q^4 s^2)/q^2 + constant
Step-by-step explanation:
Take the integral:
integral cos^(-1)(-(q^2 s)/2) ds
For the integrand cos^(-1)(-(q^2 s)/2), substitute u = -(q^2 s)/2 and du = -q^2/2 ds:
= -2/q^2 integral cos^(-1)(u) du
For the integrand cos^(-1)(u), integrate by parts, integral f dg = f g - integral g df, where
f = cos^(-1)(u), dg = du, df = -1/sqrt(1 - u^2) du, g = u:
= -(2 u cos^(-1)(u))/q^2 + 2/q^2 integral-u/sqrt(1 - u^2) du
Factor out constants:
= -(2 u cos^(-1)(u))/q^2 - 2/q^2 integral u/sqrt(1 - u^2) du
For the integrand u/sqrt(1 - u^2), substitute p = 1 - u^2 and dp = -2 u du:
= -(2 u cos^(-1)(u))/q^2 + 1/q^2 integral1/sqrt(p) dp
The integral of 1/sqrt(p) is 2 sqrt(p):
= (2 sqrt(p))/q^2 - (2 u cos^(-1)(u))/q^2 + constant
Substitute back for p = 1 - u^2:
= (2 sqrt(1 - u^2))/q^2 - (2 u cos^(-1)(u))/q^2 + constant
Substitute back for u = -(q^2 s)/2:
Answer: = s cos^(-1)(-(q^2 s)/2) + sqrt(4 - q^4 s^2)/q^2 + constant
A map has a scale factor of 0.25 inch : 50 miles. On the map, the distance of a river is 2.5 inches. What is the actual distance of the river?
Answer:
105 Miles po Sana makatutulong
PLEASE HELP!!
Cody bought two pairs of gloves and four hats for $43. Tori bought two pairs of gloves and two hats for $30. What are the prices for the gloves and hats? Write a system of equations!
Answer:
2g + 4h = 43
2g + 2h = 30
Step-by-step explanation:
Answer:
pairs of gloves = x
hats = y
2x + 4y = 43
2x + 2y = 30
hats = $6.50
gloves = $8.50
Step-by-step explanation:
use the elimination method to solve this system.
subtract the first equation by the second.
2x + 4y = 43
- 2x + 2y = 30
--------------------
2y = 13
y = 6.5
plug in the y value to find x
2x + 4 (6.5) = 43
2x + 26 = 43
2x = 17
x = 8.5
Find f(x) and g(x) so that the function can be described as y = f(g(x)).
y = Four divided by x squared. + 9
a) f(x) = x + 9, g(x) = Four divided by x squared.
b)f(x) = x, g(x) = Four divided by x. + 9
c)f(x) = One divided by x., g(x) = Four divided by x. + 9
d)f(x) = Four divided by x squared., g(x) = 9
the answer is Y/g
y=fgx
y/g=fx,which mines f(x)=y/g
What is 2/3 divided by 6/12? REDUCE ANSWER TO SIMPLEST FORM. please help mark you brainiest!!!
Answer:
4/3 or 1.34
Step-by-step explanation:
2/3 ÷ 6/12
= 2/3 × 12/6
= 4/3 or 1.34
How many terms are in the expression?
12a-2c+6
Answer:
3
Step-by-step explanation:
bc you can trust me