3 years ago

can someone go to my profile then go to my questions I keep posting them but no one replies please I need help

Mathematics

1 answer:

andrew11 [14]3 years ago

6 0

Answer:

ok ill look

Step-by-step explanation:

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Tamara needs $624 for her budget every week. She works 40 hours a week.

kirza4 [7]

Answer:

$15.6

Step-by-step explanation:

Based on the given information, it is $15.6. However, it never specified how many hours she works a day and how many days of the week she works, so we must assume it is just 624/40.

3 0

2 years ago

Read 2 more answers

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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1 year ago

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PLEASE HELP FAST I NEED A EXPERT OR ABOVE I WILL GVOE YOU ALOT OF POINTS!

kicyunya [14]

Answer:

547.5 cm

Step-by-step explanation:

730(9/12)=547.5

7 0

2 years ago

Is (2, 10) a solution to this system of inequalities? y y > 4x + 1 yes no

velikii [3]

Answer:

yes

Step-by-step explanation:

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2 years ago

112 oz= how many pounds are in 112 ounces

scoundrel [369]

7 pounds
Hope this helps!

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3 years ago