Answer:
-3(-5)+4 =19
Step-by-step explanation:
-3*-5 = 15
because -*- = +
15+4 = 19
Someone help me... please
Answer:
<h2>
75 m²</h2>
Step-by-step explanation:
Six liters of paint will cover 50 square meters.
6L ⇒ 50m²
then,
1L ⇒ 50/6 m²
9L ⇒ 50 × 
m²
⇒ 75 m²
Answer:
3/8 = 12/32 is a proportion
Step-by-step explanation:
2:3 and 9:4 is not a proportion, 10/12 and 20/25 is not a proportion, 4/9 and 17/38 is not a proportion
2 - 4x⁹ + 3x³ - (7x + x³ - 6 + 12x⁴)
= 2 - 4x⁹ + 3x³ - 7x - x³ + 6 - 12x⁴
= (2 + 6) + (-4x⁹) + (3x³ - x³) + (-7x) + (-12x⁴) <em>grouped like terms</em>
= 8 - 4x⁹ +2x³ -7x -12x⁴ <em>added like terms</em>
= - 4x⁹ - 12x⁴ + 2x³ - 7x + 8 <em>standard form</em>
