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Savatey [412]
4 years ago
7

A café owner is designing a new menu and wants to include a decorative border around the outside of her food listings. Due to th

e cost of printing, the border should have an area of 48 square inches. The width of the border needs to be uniform around the entire menu. She has already determined that her food listings will fit within a 13-inch by 9-inch rectangular area.
Mathematics
1 answer:
Ludmilka [50]4 years ago
6 0

Answer:

193

Step-by-step explanation: 40x9

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2. Round off the following numbers to two decimal places:
Viktor [21]

Answer:

I think you mean significant figures

Step-by-step explanation:

  1. 46000
  2. 32000
  3. 560000
  4. 14000
6 0
3 years ago
Determina la suma de las siguientes progresiones los primeros 18 términos de la progresión aritmética: an = -{4, 12, 20, 28, 36,
Anuta_ua [19.1K]
Hello,
let
t=(-4)+(-12)+(-20)+(-28)+(-36)+....=-(4+12+20+28+36+...)=-s

a_{1}=4=-4+1*8
a_{2}=12=-4+2*8
a_{3}=20=-4+3*8
a_{4}=28=-4+4*8

...
a_{18}=?=-4+18*8=140

a_{i}=-4+i*8

s=\sum_{i=1}^{18} (-4+i*8)=\sum_{i=1}^{18} (-4)+\ 8*\sum_{i=1}^{18}(i)\\\\=(-4)*18+8*(1+2+3+4...+18)\\\\=-72+\frac{(1+18)*18}{2}\\\\=-72+171=99

\boxed{\ t=-99}















6 0
3 years ago
eric is ten years older than sal & mick is twice sals age their combined age equals 110 how old is sal
Olenka [21]
2x + x  + 10 + x = 110
4x + 10 = 110 (Subtract ten from both sides)
4x = 100 (divide both sides by four)
x = 25

Plug in values to check...

2(25) + 25 + 25 + 10 = 110
50 + 50 + 10 = 110
110 = 110

Mick is 50 years of age.
Sal is 25 years of age.
Eric is 35 years of age.
7 0
3 years ago
(07.01 LC)
Svetradugi [14.3K]

Answer:

1

Step-by-step explanation:

Because 2 times 1 is 2 plus 1 is equal to 3

3 0
3 years ago
A soccer ball is kicked into the air. Its height above the ground can be approximated
Monica [59]

Answer:

See below in bold.

Step-by-step explanation:

a)  h = -3t^2 + 15t = 0

-3t(t - 5) = 0

t = 0, 5 are the zeroes of the relation.

b)  The ball hits the ground when h = 0 so it is after 5 seconds.

c)  The path of the ball is a parabola which opens downwards so the maximum height  is when x = 5/2 = at 2.5 seconds.

d) this maximum height is -3(2.5)^2 + 15(2.5) = 18.75 meters.

8 0
3 years ago
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