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Questions in mathematics

[Done] What is the sector area created by the hands of a clock with a radius of 9 inches when the time is $4:00$? A. $6.75 \pi in ^2$ B. $20.25 \pi in ^2$ C. $27 \pi in ^2$ D. $81 \pi in ^2$

[Done] Number Pyramid To solve this puzzle, each number must be equal to the sum of the two numbers below. 10.7 5.4 5.3 2.8 -2.6 2.7 1.9 0.9 1.7 1.0

[Done] One of the angles formed by two intersecting lines is 50° less than the other. Find the measure of all angles. Write the solution in statement-reason format.

[Done] Filed the mathematical statements show the statements are true regarding the three options. [tex]$\begin{array}{l} \text { and } C=2+1 \\ \text { and } C=8+2 \\ \text { and } C=(8+1)-2 \end{array}$[/tex] The numerical values of the area and circumference are equal when [tex]$r=2$[/tex]. The numerical value of the area is less than the numerical value of the circumference when [tex]$r\ \textless \ 2$[/tex] The numerical value of the area is greater than the numerical value of the circumference when [tex]$r\ \textless \ 2$[/tex] The numerical value of the area is less than the numerical value of the circumference when [tex]$r\ \textgreater \ 2$[/tex]. The numerical value of the area is greater than the numerical value of the circumference when [tex]$r\ \textgreater \ 2$[/tex]

[Done] In each family of functions, the parent function is the most ______ function in the family. A. complicated B. complex C. basic D. linear

[Done] Solve the simultaneous equations: $\begin{array}{l} 10 x+y=29 \ 7 x+y=20 \end{array}$

[Done] Find the slope of the line passing through the points $(-9,5)$ and $(6,5)$.

[Done] Find the exact value of $\int_1^3 x^2 \ln 3 x d x$. Give your answer in the form $a \ln b+c$, where $a$ and $c$ are rational and $b$ is an integer.

[Done] Which letter marks $\frac{2}{5}$ on this number line?

[Done] Security or fiss-ard. Eves five and $5 \cdot x$ all at to: be Sind the number of