<h3>
<u>answer</u><u>:</u></h3>
-0.7
<h3>
<em><u>steps</u></em><em><u>:</u></em></h3>
the quadratic formula is
![\frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%20b%20%2B%20%20-%20%20%5Csqrt%7B%20%7Bb%7D%5E%7B2%7D%20-%204ac%20%7D%20%7D%7B2a%7D%20)
substitute the correct values in
![\frac{ - ( - 5) + - \sqrt{ {( - 5)}^{2} - 4(1)( - 4) } }{2(1)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%20-%20%28%20-%205%29%20%2B%20%20-%20%20%5Csqrt%7B%20%7B%28%20-%205%29%7D%5E%7B2%7D%20-%204%281%29%28%20-%204%29%20%7D%20%20%7D%7B2%281%29%7D%20)
where it says +- you would type this into your calculator with + AND THEN - to get two separate answers.
when you type + you get the answer of: 5.701562119...
when you type - you get the answer of:
-0.7015621187...
when you round to the nearest tenth you get -0.7
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em><em> </em><em>:</em><em>)</em>
<em>have</em><em> </em><em>a</em><em> </em><em>great</em><em> </em><em>day</em><em> </em><em>~</em><em> </em><em>•</em><em>lipika</em><em>•</em>
Answer: $1.00
<u>Step-by-step explanation:</u>
40(2.25) + 60x = 100(1.50)
90 + 60x = 150
<u> -90 </u> <u> - 90</u>
60x = 60
<u> ÷ 60 </u> <u>÷ 60 </u>
x = 1
Answer:
$62.80
Step-by-step explanation:
$500 x 4% = $20
$350 x 4% = $14
$720 x 4% = $28.80
$20 + $ 14 + $28.80 = $ 62.80 commission
Vinegar is the carboxylic acid <span>acetic acid (CH</span>₃<span>COOH) </span>