57+53=110 to get the discount you’d need to multiply the total times 20% which you’d move the decimal place two times to the left so 110 times .20 which equals $22

7 0

3 years ago

(x⁴ + 3x³ – 2x² + 5) + (2x⁴ – 5x³ + 4x – 15).

olya-2409 [2.1K]

Answer:

$\left(x^4+3x^3-2x^2+5\right)+\left(2x^4-5x^3+4x-15\right)$

$=$ $x^4+3x^3-2x^2+5+2x^4-5x^3+4x-15$

$=x^4+2x^4+3x^3-5x^3-2x^2+4x+5-15$

$=x^4+2x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x+5-15$

$=3x^4-2x^3-2x^2+4x-10$

$OAmalOHopeO$

8 0

3 years ago

three and four angles below form a triangle which of the angles to do not belong 35 degrees 115 degrees 50 degrees 30 degrees ​

three and four angles below form a triangle which of the angles to do not belong 35 degrees 115 degrees 50 degrees 30 degrees