2 years ago

15. Find the values of y and y. (18y+5)°(10r - 61)°(x + 10)°

Mathematics

1 answer:

Gnesinka [82]2 years ago

6 0

This is the answer plz tell me if its wrong

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Help please!!!

katovenus [111]

Answer:

x = $\frac{7+\sqrt{47}\times i }{4}$

Step-by-step explanation:

<u>To solve quadratic systems,we always substitute one variable in terms if the other and then solve the equation.</u>

x + 2y = 6 ---------------(1)

y - 5 = $(x-2)^{2}$ ---------------(2)

y = $(x-2)^{2}$ + 5 ---------------(3)

Substitute (3) in (1) ,

x + 2( $(x-2)^{2}$ + 5 ) = 6

$(a + b)^{2}$ = $a^{2} + 2ab + b^{2}$

x + 2( $x^{2} - 4x + 4$ + 5 ) = 6

$2x^{2} - 7x + 12=0$ --------------(4)

The roots of the quadratic equation $ax^{2} +bx+c$ is

x = $\frac{(-b) + \sqrt{(-b)^{2}-4 \times ac } }{2 \times a}$ -----------(5)

According to equation (5),solution of (4) is

x = $\frac{7 + \sqrt{(-7)^{2}-4 \times 24 } }{2 \times 2}$

x = $\frac{7+\sqrt{49-96}}{4}$

x = $\frac{7+\sqrt{47}\times i }{4}$

4 0

3 years ago

5h+6y+4h+9y=3h+5y6h+9y

Leokris [45]

H=6y/5y^(6) -6

hope this helps!!!!!!!!

3 0

2 years ago

I need help on number 4?

olga nikolaevna [1]

They would have 2 because is it 10:1 just double it to be 20:2

8 0

3 years ago

0.9 0.947 1.5 1.268 in order from least to greatest

natka813 [3]

0.9 0.947 1.268 1.5 That's the order from least to greatest

3 0

2 years ago

Read 2 more answers

What is 5/12 divided by 4/3

lions [1.4K]

Answer:

5/6

Step-by-step explanation:

0.41/1.33=0.3125=5/6

5 0

2 years ago