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Questions in mathematics

📝 Answered - What is \( \frac{a+2}{2} = -1 \)?

📝 Answered - help me wit these 3 questions plz. A cone has a base radius of 7 centimeters and a height of 21 centimeters. What is the volume of the cone? A. 28 π cm3 B. 49 π cm3 C. 147 π cm3 D. 343 π cm3

📝 Answered - Write the fraction as a mixed number in the simplest form. \(\frac{62}{7}\)

📝 Answered - What is [tex]\frac{43}{24}[/tex] as a mixed number?

📝 Answered - How can this expression be simplified? Expression: [tex]3 + 2 \cdot a + b \cdot \frac{4}{2 - 4}[/tex] Use the correct order of operations (P.E.M.D.A.S.) A) [tex]2a + 2b - 1[/tex] B) [tex]2a + 2b - 2[/tex] C) [tex]2a - 2b + 3[/tex] D) [tex]5a + 2b - 4[/tex]

📝 Answered - What is 4,003,020,009 in standard form?

📝 Answered - Mary has 18 coins with a total value of $2.85. If the coins are dimes and quarters, how many of each type of coin does Mary have?

📝 Answered - How would you solve for x in this equation: *0.85x = 200*?

📝 Answered - The diameter of a circle is 18 mm. What is the area of the circle in terms of \(\pi\)?

📝 Answered - How would you solve for \( x \) in this equation: \[ 0.85x = 200 \]