Answer:
−2x^2−5x+3
Step-by-step explanation:
simplify
−4x^2 + 10 + 2x^2 −5x −7
= −4x^2 + 10 + 2x^2 + −5x +−7
combine like terms:
= −4x^2 + 10 + 2x^2 + −5x + −7
= (−4x^2 + 2x^2) + (−5x) + (10+ −7)
= −2x^2 + −5x + 3
Answer:
1/6
Step-by-step explanation:
To get 1% of $19.99 we can move the decimal place two spots to the left. This leaves us with .2 rounded. Then multiply .2 x 6 because its a 6% sales tax. This gives an answer of $1.2. The sales tax on the pair of jeans is an additional $1.20.
Answer:
6.25%
Step-by-step explanation:
Each time you flip a coin, there is a 50% probability of it landing on tails. Each time you flip the coin, the 50% gets multiplied by .
to the power of <em>4 </em>is 0.0625. 0.0625 in percentage form is of course 6.25%
7x +(3x-5)+(8x+5)=180
simplify
18x=180
divide by 18
x=10