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nydimaria [60]
3 years ago
12

Use this picture for all Make sure 1-4 is correctand the answer to 5

Mathematics
1 answer:
qwelly [4]3 years ago
3 0
I can't answer cause u didn't show the angles
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Help please if u<br> You don’t know it please don’t answer.
Bogdan [553]
I believe the answers are the following:

5. x = ±3.4641i

6. x = ±7

hope this helped! please mark brainliest if you get the chance :)
5 0
2 years ago
What are the solutions of the equation x^4 – 5x^2 – 36 = 0? Use factoring to solve.
hammer [34]

Answer:

Step-by-step explanation:

The equation is x^4 – 5x^2 – 36 = 0

We will break the middle term:

Firstly multiply the coefficient of x^4 by constant term of the equation:

1*36 = 36

Now find any two numbers whose product is 36 and their sum or difference is equal to 5

9*4 = 36

9-4 = 5

Now,

x^4 – 5x^2 – 36 = 0

x^4-9x^2+4x^2-36=0

Now take the common:

x^2(x^2-9)+4(x^2-9)=0

(x^2+4)(x^2-9)=0

x²+4=0,

x²= 0-4,

x²=-4,  

Take root on both sides:

√x²=+/-√-4

+/-√-4 = +/-√-1 *√4

√-1 = i

Then +/-√-1 *√4 = √4 i

We know that the root of 4 is 2

Then we can write it as +/-2i

Thus x = 2i , -2i

Now (x^2-9)= 0

x²=0+9

x²=9

Take square root on both sides:

√x²=√9

x=+/-3

x= 3, -3

Therefore the values of x are 2i, -2i, 3 , -3 ....

3 0
3 years ago
If i have 37 test and i do 12 test a week how many weeks its gonna take
daser333 [38]

Answer:

4 weeks

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A certain forest covers an area of 2,000 square kilometers. Suppose that each year this area decreases by 6%. What is the functi
AlekseyPX
<span>2000 (0.94),x 952 square kil</span>
8 0
3 years ago
Read 2 more answers
Below are two parallel lines with a third line intersecting them.<br> I need help solving for x
kvv77 [185]

Answer:

its a 50 degree angle i think.

Step-by-step explanation:

its a smaller size in scale of the bigger one.

6 0
3 years ago
Read 2 more answers
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