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1 year ago

Best answer gets brainliest!

Mathematics

2 answers:

Papessa [141]1 year ago

8 0

option D) y= 2x-1 is the answer.

confirmation →

Put 2 in place of x in 2x-1.

we gets 4-1 = 3

put 4 in place of x in 2x-1.

we gets 8-1 = 7

Thus hence the answer matches the table.

Hence Option D) is correct.

ruslelena [56]1 year ago

6 0

Answer:

O D) y = 2x - 1

Step-by-step explanation:

If you check the values given in the table and substitute in place of x and y, you will find this relation to be true.

Hope it helps.

;)

<3

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irina [24]

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6 0

2 years ago

Verify that the roots of 5x²- 6x -2 = 0 are <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%20%2B%20%5Csqrt%7B19%7D%20%7D%7B5%7D%2

Mice21 [21]

Answer:

Proof below.

Step-by-step explanation:

Quadratic Formula

$x=\dfrac{-b \pm \sqrt{b^2-4ac} }{2a}\quad\textsf{when }\:ax^2+bx+c=0$

Given quadratic equation:

$5x^2-6x-2=0$

Define the variables:

a = 5
b = -6
c = -2

Substitute the defined variables into the quadratic formula and solve for x:

$\implies x=\dfrac{-(-6) \pm \sqrt{(-6)^2-4(5)(-2)}}{2(5)}$

$\implies x=\dfrac{6 \pm \sqrt{36+40}}{10}$

$\implies x=\dfrac{6 \pm \sqrt{76}}{10}$

$\implies x=\dfrac{6 \pm \sqrt{4 \cdot 19}}{10}$

$\implies x=\dfrac{6 \pm \sqrt{4}\sqrt{19}}{10}$

$\implies x=\dfrac{6 \pm2\sqrt{19}}{10}$

$\implies x=\dfrac{3 \pm \sqrt{19}}{5}$

Therefore, the exact solutions to the given quadratic equation are:

$x=\dfrac{3 + \sqrt{19}}{5} \:\textsf{ and }\:x=\dfrac{3 - \sqrt{19}}{5}$

Learn more about the quadratic formula here:

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3 0

1 year ago

Read 2 more answers

Convert 0.9 cm into m

Whitepunk [10]

Answer is 0.009

0.9 ( 0.01 m / cm ) = 0.009

4 0

2 years ago

I will give brainliest. I need help ASAP.

Tamiku [17]

Answer:

\I got not answer cause im da BUDDHA

But gimme brainliest squekky plssss

4 0

2 years ago

QUESTION ATTACHED PLZ HELP NEEDED

saw5 [17]

Y = a (x + 3)² - 1

Let's take the point (-1;3)

3 = a ( -1 + 3)² - 1
3 = 4a - 1
4a = 4

Therefore a = 4/4 = 1

(x+3)² - 1
= x² + 6x + 9 - 1
= x² + 6x + 8

The answer would be y = x² + 6x + 8.

Hope this helps !

Photon

4 0

3 years ago