Use the scratchpad or box below to show how to solve the equation sqrt (2x+1)-4=-1 square
Which of the following is a solid bounded by the set of all points at a given distance from a given point? A. Cube B. Sphere C. Cylinder D. Cone
30 Given f(x)=(2)/(3)x+6 write the equation of f^-1(x)
Which expression is equivalent to 100n^2-1 7 (10n)^2-(1)^2 (10n^2)^2-(1)^2 (50n)^2-(1)^2 (50n^2)^2-(1)^2
Triangle ABC is congruent to triangle XYZ. In Delta ABC,AB=12cm and AC=14cm. In Delta XYZ,YZ=10cm and XZ=14 cm. What is the perimeter of Delta ABC 36 cm 38 cm 40 cm 50 cm
26 Algebraically determine the solution to the equation below. sqrt (x-2)+x=4
27 Factor the expression completely. (x-1)^2+5(x-1)-6
Select the correct answer. Which measure describes the standard error of the mean? A. the central limit theorem B. the sample mean C. the standard deviation of the means D. the confidence interval
17 Consider the system of equations below. 3x+2y=1 2y+z=2 2x-2z=-6 What is the value of x? (1) 1 (3) -4 (2) -1 (4) 4
11 Josie examines the graphs of f(x)=3^x-8 and g(x)=(1)/(x^2)-4 The number of solutions to f(x)=g(x) is (1) 1 (3) 3 (2) 2 (4) 0
Apply the distributive property to the expression. $100(0.07a+0.02b)=\square $
51. Find the volume of a pyramid with a square base, where the perimeter of the base is 15.8 ft and the height of the pyramid is 20.4 ft. Round your answer to the nearest tenth of a cubic foot.
4) $v^{1}=$ A) 0 B) 1 OC) v OD) $1/v$
What is the range of the function graphed above? $-\infty \lt y\leqslant 2$ $-\frac {3}{2}\leqslant y\lt \infty $ $-\infty \lt y\lt \infty $ $\{ 2\} $
2. You are inscribing a regular pentagon in a cIrcle. You need to know the angle measure between the vertices. You divide $360^{\circ }$ by what number? 3 s 6
Which equation represents a line that has a slope of $-\frac {1}{2}$ and passes through point $(4,-5)$ $y=-\frac {1}{2}x+\frac {3}{2}$ $y=-\frac {1}{2}x+\frac {13}{2}$ $y=-\frac {1}{2}x-7$ $y=-\frac {1}{2}x-3$
Smartphones: A poll agency reports that $38\% $ of teenagers aged $12-17$ own smartphones. A random sample of 120 teenagers is drawn. Round your answers to at least four decimal places as needed Part: 0/6 Part 1 of 6 (a) Find the mean $\mu _{\hat {p}}$ The mean $\mu _{\hat {p}}$ is 45.6000 Part: 1/6 Part 2 of 6 (b) Find the standard deviation $\sigma _{\hat {p}}$ The standard deviation $\sigma _{\hat {p}}$ is $\square $
1. If $x+3=7$ then x equals: A. 3 B. 4 C. 5 D. 10
Find the angle $\beta $ between $0^{\circ }$ and $180^{\circ }$ that satisfies the following equation. $21^{2}=20^{2}+29^{2}-(2)(20)(29)cos\beta $ $\beta \approx \square ^{\circ }$ (Round to one decimal place as needed.)
Solve the equation given by completing the square. $5x^{2}+20x-25=0$ [Hint: Divide by 5 first] $x=\square $
