there are 10 million grains in that bag of sand this is because one grain equals to 10 power -3 what about 10 kg you change it into grams then you cross multiply and get the answer
Answer:
20% of 160 is 32
Step-by-step explanation:
S = 2 π r h + 2 π r² ( surface area of the cylinder )
2 π r h = S - 2 π r²
Answer:
h = ( S - 2 π r² ) / ( 2 π r )
Answer:
<h2>x = -3</h2>
Step-by-step explanation:
<h3>Let x= the missing number</h3><h3 /><h3>6x + 6 = x - 9</h3><h3>6x - x = -9 - 6</h3><h3>5x ÷ 5 = -15 ÷ 5</h3><h3>x = -3</h3>
Checking:
<h3 /><h3>6(-3) + 6 = (-3) - 9</h3><h3>-18 + 6 = -12</h3><h3>-12 = -12</h3>
Answer:
Step-by-step explanation:
<u>Let's complete the square first:</u>
- p⁴ - 2p²x² + x⁴ + x =
- p⁴ + 2p²x² + x⁴ - 4p²x² + x =
- (p² + x²)² - (4p²x² - x)
<u>In order the expression above to be a perfect square, we need:</u>
<u>Solve it for x:</u>
- 4p²x² = x
- 4p²x = 1
- x = 1/(4p²)
Correct choice is d
