3 years ago

Enter your answer as a decimal. Round ONLY your final a answer to the nearest tenth.

Mathematics

1 answer:

ki77a [65]3 years ago

7 0

39.7

Work
1/2x12x8xsin(65)

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Solve the following quadratic equation using the quadratic formula.

sdas [7]

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\x_1=\dfrac{-b-\sqrt\Delta}{2a};\ x_2=\dfrac{-b+\sqrt\Delta}{2a}$

<span> $5x^2-8x+5=0\to a=5;\ b=-8;\ c=5\\\\\Delta=(-8)^2-4\cdot5\cdot5=64-100=-36\\\\\sqrt\Delta=\sqrt{-36}=6i$

$x_1=\dfrac{-(-8)-6i}{2\cdot5}=\dfrac{8-6i}{10}=\dfrac{4-3i}{5}\\\\x_2=\dfrac{-(-8)+6i}{2\cdot5}=\dfrac{8+6i}{10}=\dfrac{4+3i}{5}$
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2. If the diameter of a circle is 2V10, what is the area<br> of the circle.

Sidana [21]

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3 years ago

What is the equation in standard form of the line that passes through the point (-7, 2) and has a

Orlov [11]

Answer:

y=3x+23 (lmk if you need me to explain)

Step-by-step explanation:

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3 years ago

If Joe drives 186.83 miles on a business trip, and the reimbursement from his company is $13.08. At what rate is Joe's employer

kirill115 [55]

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7 cents/mile

Step-by-step explanation:

You are looking for a unit rate of cents per mile.

Change the dollar amount to cents, and divide by the number of miles.

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3 years ago