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2 years ago

Somebody... PLEASE help What is the only solution of 2x2 + 8x = x2 – 16?

Mathematics

1 answer:

makvit [3.9K]2 years ago

7 0

Answer:

x= - 4

Step-by-step explanation:

2 * x^2 + 8 * x = x^2 - 16

2 * x^2 - x^2 + 8 * x + 16 = 0

x^2 + 8 * x + 16 = 0

(x + 4) * (x + 4) = 0

x = - 4

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Write this ratio as fraction in lowest terms.<br> $5.64 to $2.48 is

Nana76 [90]

Answer:

$2\frac{17}{62}$

Step-by-step explanation:

5.64 : 2.48

2.82 : 1.24

1.41 : 0.62

$\frac{1.41}{0.62}=\\\\\frac{141}{62}=\\\\2\frac{17}{62}$

8 0

3 years ago

What is the sum of the interior angles of a hexagon?

Gala2k [10]

Hello!

So, every interior angle of a regular hexagon measures 120 degrees.

There are six interior angles of a hexagon, so you have to multiply 120 by 6.

120 x 6 = 720

So, the answer to your question is that the sum of the interior angles of a hexagon is 720 degrees.

Hope this helps!

3 0

3 years ago

Can someone help me please

Westkost [7]

Answer:

10. 20.9°

11. 73.2°

Step-by-step explanation:

The inverse sine function is used to find the angle from its sine value.

In each case, the equation is of the form ...

a/sin(x) = b/c

Multiplying both sides by c/b·sin(x), we find the solution is ...

sin(x) = ac/b . . . . . find sin(x)

x = arcsin(ac/b) . . . . . find the corresponding angle

For the given values a=7.2, b=13, c=sin(40°), we have ...

x = arcsin(7.2sin(40°)/13) ≈ 20.9°

For the given values a=6.53, b=√40, c=sin(68°), we have ...

x = arcsin(6.53sin(68°)/√40) ≈ 73.2°

5 0

3 years ago

185 in.=_ft_in. how many are in the blanks

olga55 [171]

185 in. = 15ft and 5in.

4 0

3 years ago

Find the measure of A <br><br> A:46<br> B:90<br> C:134<br> D:88

grigory [225]

Answer:

Option d = 88

Step-by-step explanation:

Angle c = 46 degrees

46 + 46 = 92

180 - 92 = 88

5 0

3 years ago

Read 2 more answers