Step-by-step explanation:
please mark me as brainlest
4e^(2x) - 3 = 12
4e^(2x) = 15
e^(2x) = 15/4
taking logs
2x = ln (15/4)
x = ln(15/4) / 2
x = 0.66 to nearest hundredth
Answer:
25%
Step-by-step explanation:
990 x 0.25
This can be done easily in a few ways. One, you could do equivelent fractions as this. 16 percent is the same as 16 over 100, or, 16/100, 100 being the total with an = sign with X over 550, or, X/550. you can multiply 16 by 500 and divide by 100 to get $88. Or you could do it my way, (prefered way). take the $550, divide it by 100, then multiply by 16 and get $88. either way you do this, you take away the $88 from $550 and get the sale price of [Drumroll please...]
<em><u>462 Dollars!</u></em>
Factors of 21={1,3,7,21}
Factors of 63={1,3,7,9,21,63}
the highest common factor (HCF) is 21.