The answer to this question is A. : )
KBr + AgNO3 --------> <u>KNO3</u> + <u>AgBr</u>
- It is Double displacement reactions ( means ions exchange take place)
- When potassium bromide react with silver nitrate then,products came out are potassium nitrate and silver bromide.
4x² - 100 = 0
<u> + 100 + 100</u>
<u> 4x²</u> = <u>100</u>
4 4
x² = 25
x = <u>+</u>5
4(5)² - 100 = 0
4(25) - 100 = 0
100 - 100 = 0
0 = 0
4(-5)² - 100 = 0
4(25) - 100 = 0
100 - 100 = 0
0 = 0
The roots of the equation is positive or negative 5.
Answer: x=1
Step-by-step explanation: Divide both sides by 8.
Answer:
Sales tax = $2.79
Step-by-step explanation:
(18 x 48.6)
/100
= 8.748 = $8.75 tip amount total
48.60-8.748 = 39.852 sales total
(39.852 x 7)/100
= 2.78964 = $2.79 sales tax
39.852 - 2.78964 = 37.06236 = $37.06 cost of bill
Sales tax was asked = $2.79
