Questions in mathematics

Questions in mathematics

📝 Answered - Fiona draws a circle with a diameter of 14 meters. What is the area of Fiona's circle? A. [tex]$7 \pi m^2$[/tex] B. [tex]$14 \pi m^2$[/tex] C. [tex]$28 \pi m^2$[/tex] D. [tex]$49 \pi m^2$[/tex]

📝 Answered - (b) If $(x+y)=5$ and $x y=3$, then find the values of $x^2+y^2$ and $(x+y)^2$.

📝 Answered - Factor the quadratic $10 x^2+19 x-15$. List ONLY ONE of the factors with parentheses and no spaces. Example: $(x+1)$

📝 Answered - If $-5 \sin \theta=4$ and $\theta \in(90,270)$, determine without the use of a calculator and with the aid of a diagram the value of: (1) $5 \cos \theta-3 \tan \theta$ (2) $\frac{4}{\sin \theta}-\frac{3}{\cos \theta}$

📝 Answered - need help with this question

📝 Answered - Rationalize the denominator. $\frac{-12 \sqrt{5}}{\sqrt{6}-\sqrt{3}}$

📝 Answered - Which logarithmic equation has the same solution as [tex]2^{3} = (x - 4)[/tex]?

📝 Answered - If $f(x)=14 x-16$, calculate $f(-15)$

📝 Answered - What is the solution to the equation $t+14=24$?

📝 Answered - Explain how the procedure for changing $\frac{5}{9}$ to $\frac{10}{18}$ requires the use of the multiplicative identity element, 1.