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Gelneren [198K]
3 years ago
12

How many edges does the figure have?

Mathematics
1 answer:
abruzzese [7]3 years ago
6 0

Answer: 4

Step-by-step explanation:

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gregori [183]
We use quadratic formula for that one
remember that √-1=i

so

for
ax^2+bx+c=0
x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}
so
given
5x^2-6x+2=0
a=5
b=-6
c=2

x=\frac{-(-6)+/-\sqrt{(-6)^2-4(5)(2)}}{2(5)}
x=\frac{6+/-\sqrt{36-40}}{10}
x=\frac{6+/-\sqrt{-4}}{10}
x=\frac{6+/-2i}{10}

x=\frac{3}{5}+\frac{i}{5}, \frac{3}{5}-\frac{i}{5}
8 0
3 years ago
5. mc035-1.jpg What is the area of the kite? 135 m2 216 m2 90 m2 108 m2
Ahat [919]
Pls. see attachment.

9√2 → 12.73

sin θ = opposite / hypotenuse
sin 45° = opposite / 12.73
0.707 * 12.73 = opposite
9 = opposite

cos θ = adjacent / hypotenuse
cos 45° = adjacent / 12.73
0.707 * 12.73 = adjacent
9 = adjacent

Area of a kite = pq/2
p = 9 + 9 = 18
q = 9 + 6 = 15

Area = (18m*15m) / 2
Area = 270m² / 2
Area = 135 m²

The area of the kite is 135 m².

5 0
3 years ago
Solve F(x) for the given domain. <br> F(x) = x 2 + 3x - 2 <br> F(-1) = <br> -4<br> -6<br> 2
Marianna [84]
Hello : 
<span>F(x) = x² + 3x - 2
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3 years ago
The function g(x)= x^2+3. The function f(x) = g(x+2).
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so you would siplify it and it would come out to: f(x)=g(2).

5 0
3 years ago
The total length of two ships is 2321 feet. The difference in their lengths is 17 feet. Find the length of each ship. If a footb
Romashka-Z-Leto [24]

The length of the longer ship in terms of number of football fields is;

<u><em>4 football fields</em></u>

Let the length of ship 1 be x

Let the length of ship 2 be y

Total length of both ships is 2321 ft

Thus;

x + y = 2321  ----(eq 1)

The difference in their lengths is 17 ft

Thus;

x - y = 17    ----(eq 2)

Add eq 1 to eq 2 to get;

2x = 2338

Thus; x = 2338/2

x = 1169 ft

Put 1169 for x in eq 1 to get;

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y = 2321 - 1169

y = 1152 ft

Longer ship = 1169 ft long

From conversion tables;

1 ft = 1/3 yards

Thus; 1169 ft = 1169 * 1/3 = 389.67 yards

A football field has a length of 100 yards

Then number of football fields for the length of the longer ship = 389.67/100 = 3.8967 ≈ 4 football fields.

Read more at; brainly.com/question/21804970

5 0
2 years ago
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