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Grace [21]
3 years ago
11

Help me find the area of the rhombus

Mathematics
2 answers:
Mrrafil [7]3 years ago
6 0
Area of  a rhombus is bxh
5x10=50m^2
atroni [7]3 years ago
5 0
The equation for the area of a rhombus is A =  \frac{ (d_1)( d_2)}{2}, where d_1 and d_2 are the length of the diagonals of the rhombus, and A = area of the rhombus.

Your two diagonals are:
d_1 = 5m + 5m = 10m
d_2 = 10m + 10m = 20m

Plug these values into the equation for the area of a rhombus:
A = \frac{ (d_1)( d_2)}{2} \\
A = \frac{ (10)(20)}{2} \\
A =  \frac{200}{2} \\
A = 100m^2

-----

Answer: 100 m^{2}
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The sum of series of 4+ 15 + 26 + ….. + 213
Gnom [1K]

Decompose the terms in the sum as

4 + 15 + 26 + \cdots + 213 = 4 + (4 + 11) + (4 + 2\times11) + \cdots + (4 + 19\times11)

so there are 20 terms in the sum. Then our sum simplifies to

4 + 15 + 26 + \cdots + 213 = 4\times20 + (0+1+2+\cdots+19)\times11

Now, if

S = 1 + 2 + 3 + \cdots + 17 + 18 + 19

we can reverse the order of terms to get the same sum,

S = 19 + 18 + 17 + \cdots + 3 + 2 + 1

so that doubling up the sum gives

2S = (1 + 19) + (2 + 18) + \cdots + (18 + 2) + (19 + 1) = 19\times20 \implies S=19\times10=190

So, our sum evaluates to

4 + 15 + 26 + \cdots + 213 = 4\times20 + 190\times11 = \boxed{2170}

5 0
2 years ago
A splice uses 24 centimetres of rope when two ropes are tied together. What basic fraction is this a 300 centimetre spliced rope
Vikki [24]

so 24cm out of 300 cm is spliced

24/300 is the fraction

we can simplify this by dividing top and bottom by 3 to get

8/100

we can divide top and bottom by 4 to get

2/25 is the most simplified fraction

3 0
4 years ago
The answer to if he was right or not
Kryger [21]

Answer:

Incorrect

Step-by-step explanation:

(9×13) - (5×2) - (3×6)

117 - 10 - 18

= 89 ft²

5 0
3 years ago
Graph both functions to find the solution(s) to the system.
konstantin123 [22]

graphed it with desmos (free as app and website).

the solutions are in the screenshot

(1, 3)

(3, 7)

5 0
3 years ago
1. 2x = 2 - 9<br> 21y = 4 - 6x
mina [271]

2x=2-9

21y=4-6x

2x=-7

6x=4-21y

x=-7/2

6(-7/2)=4-21y

-21=4-21y

-21-4=-21y

-25=-21y

y=-25/-21

:.y=1 4/21.

3 0
4 years ago
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