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Mathematics Questions & Answers

Q:
Directions: Perform the division below. \( \frac{y^{2}+2 y+24}{y+6} \)
Q:
What would a researcher say about a coefficient of determination equal to -. 48 ? A) The \( 48 \% \) of variance in my dependent variable can be explained by variance in the independent variable (B) An error is made (C) The relationship is not statistically significant due to the low value of the coefficient. (D) Inconclusive results. Post hoc tests are needed.
Q:
A disease has hit a city. The percentage of the population infected \( t \) days after the disease arrives is approximated by \( p(t)=11 t e^{-t / 9} \) for \( 0 \leq t \leq 45 \). (a) After how many days is the percentage of infected people a maximum? (b) What is the maximum percent of the population infected?
Q:
Solve the quadratic equation by completing the square. \( \begin{array}{ll}x^{2}+10 x+14=0 \\ \)\begin{tabular}{ll}\text { a. }\( -10 \pm 6 \) \\ \text { b. } \( 100 \pm \sqrt{11} \) & \text { c. } \( 5 \pm 6 \) \\ \hline\end{tabular}\end{array}
Q:
h) \( \left(12 x^{6}-15 x^{3}-32 x^{2}+41 x+6\right) \div\left(4 x^{2}-5 x\right) \)
Q:
\( -\frac{3}{2}+\frac{24}{20}-1.75= \) Escribe la respuesta como un decimal exacto o una fracción simplificada.
Q:
Area 5.) Construct a polygon on the following geoboard that is 7 square units. Then construct a right triangle on the next geoboard that is 4 square units.
Q:
QUESTÃO 3: Um prêmio vai ser sorteado entre as 50 pessoas presentes em uma sala. Se \( 40 \% \) delas usam óculos, 12 mulheres não usam óculos e 12 homens os usam, a probabilidade de ser premiado um homem que não usa óculos é:
Q:
There are 4 third grade classes. The teachers want to know how many glue sticks each class will get if they split the glue sticks evenly. Which equation can be solved to find the number of glue sticks reach class? B. \( (6+6) \div 4=n \) \( (6 \times 6) \div 4=n \) \( (6 \times 6)+4=n \) \( (6 \times 6) \) \( 4=n \)
Q:
The appropriate degrees of freedom for the distribution used in correlation is off \( =\mathrm{N}-\mathrm{k} \). A) True (B) False
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