I have 11 days left to finish this class otherwise I can't graduate with my class, and move out of state to see my mom. thank yo
u in advance.
I can only post so many screenshots, I will repost the other half after this. I even asked my Study Hall teacher and she couldnt remember how to do these.
I can only post so many screenshots, I will repost the other half after this. I even asked my Study Hall teacher and she couldnt remember how to do these.
1 answer:
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Equation Given
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x² + 2x = 17
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Add the constant to make it perfect square
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x² + 2x + (2/2)² - ²(2/2)² = 17
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Evaluate the brackets
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x² + 2x + (1)² - ²(1)² = 17
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Form the perfect square
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(x + 1)² - 1 = 17
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Add 1 to both sides
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(x + 1)² = 17 + 1
(x + 1)² = 18
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Square root both sides
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√(x + 1)² =
√18
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Solve for x
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x = 4.24 - 1 or - 4.24 -1
x = 3.24 or - 5.24 (nearest hundredth)
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Answer: x = x = 3.24 or - 5.24
--------------------------------------------------------
Equation Given
--------------------------------------------------------
x² + 2x = 17
--------------------------------------------------------
Add the constant to make it perfect square
--------------------------------------------------------
x² + 2x + (2/2)² - ²(2/2)² = 17
--------------------------------------------------------
Evaluate the brackets
--------------------------------------------------------
x² + 2x + (1)² - ²(1)² = 17
--------------------------------------------------------
Form the perfect square
--------------------------------------------------------
(x + 1)² - 1 = 17
--------------------------------------------------------
Add 1 to both sides
--------------------------------------------------------
(x + 1)² = 17 + 1
(x + 1)² = 18
--------------------------------------------------------
Square root both sides
--------------------------------------------------------
√(x + 1)² =
--------------------------------------------------------
Solve for x
--------------------------------------------------------
x = 4.24 - 1 or - 4.24 -1
x = 3.24 or - 5.24 (nearest hundredth)
--------------------------------------------------------
Answer: x = x = 3.24 or - 5.24
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Answer: look at my work its 10 pi cm ^2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that,
Radius of a cone, r = 13 cm
Slant height of the cone, l = 20 cm
We need to find the surface area of the cone. The formula for the surface area of the cone is given by :
Put all the values,
So, the surface area of the cone is .