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Veseljchak [2.6K]

3 years ago

12

Miss Campbell has just bought a rectangular displayboard for her bedroom. It has a length of 90 cm and a width of 50 cm. Miss Ca

mpbell would like to put a border of yellow ribbon around the perimeter of her display board.

1 answer:

AVprozaik [17]3 years ago

4 0

Answer:

Area - l*w

area is 4500 cm 2

perimeter - l + w * 2

perimeter is 280 cm

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F(x) = Vx+3 -5<br> i need help figuring out the y coordinates for the table of this problem

bonufazy [111]

Answer:

I think the answer is f' (x)=v

5 0

3 years ago

What is the perimeter of the rectangle? one side is 6in. and the A=30 sq in.

monitta

The perimeter of a rectangle can be found by dividing the area by one side.
30/6=5
Then, add the sides up and you get the perimeter.
5+5+6+6=22

The answer is 22 inches.

3 0

3 years ago

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Find the value of n that makes ΔDEF ∼ΔXYZ when DE = 4, EF = 5, XY = 4(n+1), YZ = 7n - 1, and ∠E ≅∠Y. n =

dalvyx [7]

Answer:

3

Step-by-step explanation:

It's given that ΔDEF ∼ΔXYZ . So the corresponding sides of both triangles will be proportional to each other.

$= > \frac{de}{xy} = \frac{ef}{yz} = \frac{df}{xz}$

DE = 4 ; XY = 4(n + 1) ; EF = 5 ; YZ = 7n - 1

Putting all these values gives ,

$\frac{4}{4(n + 1)} = \frac{5}{7n - 1}$

$= > \frac{1}{n + 1} = \frac{5}{7n - 1}$

$= > 7n - 1 = 5(n + 1)$

$= > 7n - 1 = 5n + 5$

$= > 7n - 5n = 5 + 1$

$= > 2n = 6$

$= > n = \frac{6}{2} = 3$

3 0

3 years ago

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(1.75)^2 in expanded form

s2008m [1.1K]

Answer:

1.75 x 1.75

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3 0

2 years ago

Correct + Best explanation gets brainliest.

Yuki888 [10]

let length of the rectangle be l

length is 6 cm longer than the width, w

l = w + 6

perimeter of rectangle is 72 cm

= 2l + 2w

substitute l = w + 6

2(w+6) + 2w = 72

4w + 12 = 72

4w = 60

x = 15

ans is C. 15 cm

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3 years ago

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