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Questions in mathematics

📝 Answered - What is the solution of $\log (2 t+4)=\log (14-3 t)$?

📝 Answered - The graph of f(x)=√x is reflected across the y-axis to create the graph of function g. How do the domains of ƒ and g compare? A. The domains of f and g are both x≥ 0. B. The domains of f and g are both all real numbers. C. The domain of f is x≥ 0, while the domain of g is x≤ 0. D. The domain of f is x≤ 0, while the domain of g is x≥ 0.

📝 Answered - This circle is centered at the origin, and the length of its radius is 5. What is the equation of the circle? A. $x^2+y^2=5^2$ B. $x^2+y^2=5$ C. $\frac{x^2}{5}+\frac{y^2}{5}=1$

📝 Answered - Find the center and radius of this circle. [tex]\begin{array}{l} (x-2)^2+(y+3)^2=36 \\ C=([?],[]) \text { and } r=[] \end{array}[/tex]

📝 Answered - Determine whether the normal distribution can be used to compare the following population proportions. [tex]n_1=44, \quad n_2=45, \quad \hat{p}_1=0.523, \quad \hat{p}_2=0.689[/tex] Step 1 of 2 : Calculate the four values [tex]n_1 \hat{p}_1, n_1\left(1-\hat{p}_1\right), n_2 \hat{p}_2[/tex], and [tex]n_2\left(1-\hat{p}_2\right)[/tex]. Round your answers to three decimal places, if necessary.

📝 Answered - Given two dependent random samples with the following results: | Population 1 | 24 | 31 | 44 | 31 | 26 | 22 | 25 | |---|---|---|---|---|---|---|---| | Population 2 | 26 | 40 | 48 | 39 | 29 | 18 | 16 | Use this data to find the $80 \%$ confidence interval for the true difference between the population means. Assume that both populations are $n$ Step 3 of 4 : Calculate the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.

📝 Answered - Which graph matches the equation $y+6=\frac{3}{4}(x+4)$?

📝 Answered - Solve for $x$: -2.863 .98 - 0.8y = -2.86

📝 Answered - Which statement is true for $\log _3(x+1)=2$? A. $x+1=3^2$ B. $x+1=2^3$ C. $2(x+1)=3$ D. $3(x+1)=2$

📝 Answered - Calculate the margin of error for a 99% confidence interval given the sample size, sample standard deviation, and confidence level. What is given in the problem? Sample size: n = 36 Sample standard deviation: s = 10 Confidence level: 99%.