Math Statement

Problem 23001

Find the limits of the function g(x)g(x) defined as:
g(x)={0if x636x2if 6<x<6xif x6g(x)=\begin{cases} 0 & \text{if } x \leq -6 \\ \sqrt{36-x^{2}} & \text{if } -6 < x < 6 \\ x & \text{if } x \geq 6 \end{cases}
for x6,6+,6,6+,6x \to -6^{-}, -6^{+}, 6^{-}, 6^{+}, 6.

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Problem 23002

Solve the initial value problem: dydt=3y(1y12)\frac{d y}{d t}=3 y\left(1-\frac{y}{12}\right), y(0)=2y(0)=2. Find y(t)y(t).

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Problem 23003

Calculate the work done by the force F(x)=2x2+4xF(x)=2 x^{-2}+4 x from x=1x=1 to x=2x=2: evaluate 12(2x2+4x)dx\int_{1}^{2}\left(2 x^{-2}+4 x\right) d x. Provide the answer to three decimal places.

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Problem 23004

Calculate the average of the numbers 5.34, 5.31, 5.30, 5.31, and 5.25. What is Xˉ=5.34+5.31+5.30+5.31+5.255\bar{X} = \frac{5.34+5.31+5.30+5.31+5.25}{5}?

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Problem 23005

Find the value of f(π)f(\pi) where f(T)=0xxcos(x)dxf(T)=\int_{0}^{x} x \cos (x) d x. Provide the answer to three decimal places.

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Problem 23006

Find the standard deviation from the variance S2=0.00107S^{2}=0.00107. Round your answer to five decimal places.

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Problem 23007

Find the value of f(π)f(\pi) where f(T)=0Txcos(x)dxf(T)=\int_{0}^{T} x \cos (x) d x. Round to three decimal places.

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Problem 23008

Solve for xx in the equation F(12)=2x+4F(12) = 2x + 4.

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Problem 23009

Solve for xx in the equation ln2(x+1)ln2(x1)=ln28\ln _{2}(x+1)-\ln _{2}(x-1)=\ln _{2} 8.

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Problem 23010

Write an equation for how a neutral aluminum atom forms an aluminum ion, using ee^{-} for electrons.

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Problem 23011

Find the range (5.34 - 5.25) and the coefficient of variation: CV=(0.03275.302)100%CV = \left(\frac{0.0327}{5.302}\right) 100 \%. Round to four decimals.

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Problem 23012

Does the integral 031xdx\int_{0}^{3} \frac{1}{x} dx converge or diverge?

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Problem 23013

Determine if the integral 141x2/3dx\int_{-1}^{4} \frac{1}{x^{2 / 3}} d x converges or diverges.

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Problem 23014

Find the mean of the five-year CDs: Xˉ=5.95+5.90+5.84+5.83+5.785=\bar{X} = \frac{5.95 + 5.90 + 5.84 + 5.83 + 5.78}{5} = \square (Type an integer or decimal.)

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Problem 23015

Find the significant figures in the measurement 1036.48g1036.48g.

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Problem 23016

Does the integral e3xdx\int_{-\infty}^{\infty} e^{-3 x} dx converge or diverge?

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Problem 23017

Find the decimal equivalents of these fractions: -31 86/100, -31 45/50, -23/20, 7/20, -60/22, 1/18.

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Problem 23018

Find the significant figures in the measurement 1036.48g1036.48g.

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Problem 23019

Calculate the standard deviation from a variance of 0.001800.00180. Round to four decimal places.

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Problem 23020

Find the limit: limt4+7t28t216\lim _{t \rightarrow 4^{+}} \frac{|7 t-28|}{t^{2}-16}.

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Problem 23021

Calculate 6×66 \times 6.

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Problem 23022

Find the area of an equilateral triangle as a function of its side length ss. Use the formula A=34s2A = \frac{\sqrt{3}}{4}s^2.

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Problem 23023

Find the maximum value of f(x)=400x11x23f(x)=400 x-11 x^{2}-3 graphically, rounded to four decimal places.

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Problem 23024

How many significant figures are in the measurement 5.0×1035.0 \times 10^{-3}?

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Problem 23025

Find the significant figures in these values: 5.0×1035.0 \times 10^{-3} L, 20.820.8, 99.099.0, 13.7013.70, 60,810,00060,810,000 g, 1036.481036.48 g.

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Problem 23026

Find the standard deviation given a variance of 0.00445. Round to four decimal places.

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Problem 23027

Find the value of y(1)y(1) for the initial value problem dydx=ln(x)x\frac{d y}{d x}=\frac{\ln (x)}{x} with y(e)=3y(e)=3.

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Problem 23028

Convert 1 meter (m) to nanometers (nm): 1m=?nm1 \mathrm{m} = ? \mathrm{nm}.

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Problem 23030

Find the value of the integral 44f(x)dx\int_{4}^{4} f(x) d x given that ff and gg are continuous functions.

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Problem 23031

Find the value of 25f(x)dx\int_{2}^{5} f(x) d x given that 02f(x)dx=1\int_{0}^{2} f(x) dx=-1 and 05f(x)dx=3\int_{0}^{5} f(x) dx=3.

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Problem 23032

Find the value of the integral 20g(x)dx\int_{2}^{0} g(x) d x given 02g(x)dx=8\int_{0}^{2} g(x) d x=8. Enter as a decimal or DNE.

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Problem 23033

Calculate the integral 02(5f(x)+g(x))dx\int_{0}^{2}(5 f(x)+g(x)) d x given that 02f(x)dx=1\int_{0}^{2} f(x) d x=-1 and 02g(x)dx=8\int_{0}^{2} g(x) d x=8.

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Problem 23034

Determine if the function g(x)=4x5+5x3g(x)=-4 x^{5}+5 x^{3} is even, odd, or neither.

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Problem 23035

Calculate the expression: 164÷1/4+2=16 - 4 \div 1 / 4 + 2 =

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Problem 23036

Find the constant xx in the equation H=xvAH=x \frac{v}{A} from v=74AHv=\frac{7}{4} A H.

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Problem 23037

Solve the equation: 4+44 + 4.

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Problem 23038

Calculate the product of 12 and 12: 12×12=?12 \times 12 = ?

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Problem 23039

If x=5x = 5, find the value of 6x6x, 5x5x, 30x30x, and R30R^{30}.

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Problem 23040

Find the slope and y-intercept for each line: 39. y=2x+1y=2x+1, 40. y=3x+2y=3x+2, 41. f(x)=2x+1f(x)=-2x+1, 42. f(x)=3x+2f(x)=-3x+2, 43. f(x)=34x2f(x)=\frac{3}{4}x-2, 44. f(x)=34x3f(x)=\frac{3}{4}x-3, 45. y=35x+7y=-\frac{3}{5}x+7, 46. y=25x+6y=-\frac{2}{5}x+6, 47. g(x)=12xg(x)=-\frac{1}{2}x, 48. g(x)=13xg(x)=-\frac{1}{3}x. Graph each function.

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Problem 23041

Factor the expression 36x3+21x2+3x36 x^{3}+21 x^{2}+3 x as ax(bx+1)(cx+1)a x(b x+1)(c x+1) with b>cb>c. Find the value of cc.

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Problem 23042

Find where the lines y=x3y = x - 3 and y=3x2y = 3x^2 intersect.

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Problem 23043

Rewrite the equations in slope-intercept form, find the slope and y-intercept, and graph them. 59. 3x+y5=03x + y - 5 = 0 60. 4x+y6=04x + y - 6 = 0 61. 2x+3y18=02x + 3y - 18 = 0 62. 4x+6y+12=04x + 6y + 12 = 0

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Problem 23044

Find the values of xRx \in \mathbb{R} for which f(x)=x2+1x1f(x)=\frac{x^{2}+1}{x-1} is defined and continuous (in interval notation).

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Problem 23045

Find the values of xRx \in \mathbb{R} for which f(x)=ln(x+1)f(x)=\ln (x+1) is defined and continuous (interval notation).

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Problem 23046

Convert 4.608lb4.608 \mathrm{lb} to kilograms with four significant figures.

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Problem 23047

Find where the function f(x)=4x+16f(x)=\sqrt{4x+16} is continuous and express the x\mathrm{x}-values in interval notation.

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Problem 23048

Find the intersection of the curves y=2x2+3y=2x^2+3 and y=x+6y=-x+6.

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Problem 23049

Find the value of aa so that the function f(x)=30+xx2x6f(x)=\frac{30+x-x^{2}}{x-6} is continuous at x=6x=6.

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Problem 23050

Check if the function f(x)={x21x1if x14if x=1f(x)=\left\{\begin{array}{ll} \frac{x^{2}-1}{x-1} & \text{if } x \neq 1 \\ 4 & \text{if } x=1 \end{array}\right. is continuous at a=1a=1.

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Problem 23051

Find the intersection points of the lines y=3xy=3-x and y=x2+2x+3y=-x^{2}+2x+3.

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Problem 23052

Find the value of aa for which f(x)f(x) is continuous at all xx:
f(x)={x299,x<112ax,x11 f(x)=\begin{cases} x^{2}-99, & x<11 \\ 2 a x, & x \geq 11 \end{cases}
Options: A. a=a= B. No solution.

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Problem 23053

Find the value of xx in g=xpg = x \sqrt{p} if p=2g250p = \frac{2 g^{2}}{50}.

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Problem 23054

Model the fungus growth rate R(t)R(t) as:
R(t)={2et if 0ttca if t>tc R(t)=\left\{\begin{array}{ll} 2 e^{t} & \text { if } 0 \leq t \leq t_{c} \\ a & \text { if } t>t_{c} \end{array}\right.
Find aa for continuity at t=tct=t_{c}. What is aa in terms of ee?

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Problem 23055

Solve the equation 0.0015x2+x+2=0-0.0015 x^{2} + x + 2 = 0 for xx.

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Problem 23056

Solve the equation 0.0015x2+x+2=0-0.0015 x^{2} + x + 2 = 0.

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Problem 23057

Divide 9.205 by 3.5.

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Problem 23058

Calculate the value of the expression: 3.59.205\frac{3.5}{9.205}.

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Problem 23059

Model the fungus growth rate R(t)R(t) as R(t)={2et,0ttc;a,t>tc}R(t)=\{2 e^{t}, 0 \leq t \leq t_{c}; a, t>t_{c}\}. Find aa for continuity at t=tct=t_{c}.

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Problem 23060

Find values of the linear function f(x)=xf(x)=x for x=2,1,0,1,2x = -2, -1, 0, 1, 2.

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Problem 23061

Express the set 6<x1-6<x \leq-1 in interval notation.

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Problem 23062

Solve for x: -14 < -4x + 5 ≤ -13. Provide your answer in interval notation.

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Problem 23063

Solve for xx in the inequality 3<11(x+4)73 < -11(x+4) \leq -7. Answer in interval notation or type DNE if no solution exists.

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Problem 23064

Match each set builder expression with the correct interval:
1. {xa<x}\{x \mid a<x\}: a. [a,b][a, b]
2. {xx<b}\{x \mid x<b\}: b. [a,b)[a, b)
3. {xa<xb}\{x \mid a<x \leq b\}: c. (a,)(a, \infty)
4. {xa<x<b}\{x \mid a<x<b\}: d. [a,)[a, \infty)
5. {xxR}\{x \mid x \in \mathbb{R}\}: e. (a,b](a, b]
6. {xax<b}\{x \mid a \leq x<b\}: f. (,b)(-\infty, b)
7. {xax}\{x \mid a \leq x\}: g. (,b](-\infty, b]
8. {xxb}\{x \mid x \leq b\}: h. (,)(-\infty, \infty)
9. {xaxb}\{x \mid a \leq x \leq b\}: i. (a,b)(a, b)

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Problem 23065

Find the slope for points (0, a) & (b, 0) and (-a, 0) & (0, -b). State if the line rises, falls, horizontal, or vertical.

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Problem 23066

Solve the inequality: 118x12+8x-11-8x \leq 12+8x. Enter your answer as an interval, like [a,oo)[a, oo).

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Problem 23067

Solve the inequality: 93+b<3527\frac{9}{3}+b<\frac{35}{27}. Enter your answer as an interval using "oo" for \infty.

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Problem 23068

Solve the inequality 4x+3<8|4x + 3| < 8 and express your solution in interval notation.

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Problem 23069

Solve the inequality x+217>1\left|\frac{x+21}{7}\right|>1 and express the solution as an interval.

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Problem 23070

Solve the inequality: 4x1323-4|x-1|-3 \leq-23. Provide the solution in interval notation.

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Problem 23071

Simplify the expression: 3n+2(2n1)3n + 2(-2n - 1). Choose the equivalent expression: (A) n+2-n + 2, (B) n+2n + 2, (C) n2-n - 2, (D) n2n - 2.

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Problem 23072

Simplify the expression: 4(z+3)4(54z)-4(z+3)-4(5-4 z). Choose the correct equivalent expression from the options.

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Problem 23073

Simplify the expression: 3(2+4k)+7(2k1)-3(2+4k)+7(2k-1). Choose the correct equivalent expression: (A) 2k132k-13, (B) 8k138k-13, (C) 2k+132k+13, (D) 2k72k-7.

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Problem 23074

Solve the inequality: 62+a1912\frac{6}{2}+a \leq \frac{19}{12}. Provide your answer as an interval using "oo" for \infty.

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Problem 23075

Solve the inequality: 62+a1912\frac{6}{2}+a \leq \frac{19}{12}. Enter the answer as an interval using "oo" for \infty.

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Problem 23076

Simplify the expression: r+8(5r2)-r + 8(-5r - 2). Choose the equivalent expression from the options provided.

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Problem 23077

Simplify the expression [a44a2+4]12\left[a^{4}-4 a^{2}+4\right]^{\frac{1}{2}}.

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Problem 23078

Solve the equation x2+4x5=x+1x^{2}+4x-5=-x+1.

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Problem 23079

Find the domain of these sets and 'All Real Numbers': {2,0,1,2,8}\{-2,0,1,2,8\}, {3,2,0,1,2,3,4,5,8}\{-3,-2,0,1,2,3,4,5,8\}, {3,3,4,5}\{-3,3,4,5\}, and relate them to functions.

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Problem 23080

Solve the inequality -4|x+4|-2<-10 and express your solution in interval notation.

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Problem 23081

Solve the inequality: 3x+55<11-3|x+5|-5<-11. Provide the solution in interval notation.

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Problem 23082

Does the equation x=y2+15x = y^{2} + 15 define yy as a function of xx? Choose A, B, C, or D.

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Problem 23083

Find the domain of the function f(x)=7xf(x) = 7x.

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Problem 23084

Solve the equation 2x2x1=2x+12 x^{2}-x-1=2 x+1.

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Problem 23085

Calculate the value of 535^{3}. Options: 225, 15, 125.

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Problem 23086

Calculate the value of 36.561.08\frac{36.56}{1.08}.

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Problem 23087

Calculate 0.00266×50.00266 \times 5.

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Problem 23088

Calculate (0.3250)(31)1.43\frac{(0.3250)(31)}{1.43}.

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Problem 23089

Does the function f(x)=x35x2+15x8f(x)=x^{3}-5 x^{2}+15 x-8 have a zero in the interval [0,1][0,1]? Justify your answer.

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Problem 23090

Find the limit: limx4+3xx22x8\lim _{x \rightarrow 4^{+}} \frac{3-x}{x^{2}-2 x-8}.

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Problem 23091

Find the derivatives of these functions: 1) y=sin2x+(2x5)2y=\sin 2x + (2x-5)^{2} 2) y=cotx+sec2x+5y=\cot x + \sec^{2} x + 5

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Problem 23092

Find the derivative of these functions:
1. y=cot4xy=\cot ^{4} x
2. y=sec3xy=\sec ^{3} x
3. y=cosx2y=\cos x^{2}
4. y=secx+tanxsecxtanxy=\sqrt{\frac{\sec x+\tan x}{\sec x-\tan x}}
5. y=sin2x+(2x5)2y=\sin 2 x+(2 x-5)^{2}
6. y=cotx+sec2x+5y=\cot x+\sec ^{2} x+5
7. y=sec1secx+1y=\frac{\sec -1}{\sec x+1}
8. y=cosec3x3y=\operatorname{cosec} 3 x^{3}
9. y=sin3xx+1y=\frac{\sin 3 x}{x+1}
10. y=sin2x2x+5y=\frac{\sin 2 x}{2 x+5}
11. y=cot2xy=\cot 2 x
12. y=(3x+1)cos2xexy=\frac{(3 x+1) \cos 2 x}{e^{x}}
13. y=secxy=\sec x

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Problem 23093

Write the linear equation y=7x2y=7 x-2 in function notation.

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Problem 23094

Convert the equation y=7x2y=7 x-2 into function notation.

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Problem 23095

Find the derivatives of these functions: 1. y=sin3xx+1y=\frac{\sin 3 x}{x+1}, 2. y=sin2x2x+5y=\frac{\sin 2 x}{2 x+5}, 3. y=cot2xy=\cot 2 x, 4. y=(3x+1)cos2xexy=\frac{(3 x+1) \cos 2 x}{e^{x}}, 5. y=secxy=\sec x.

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Problem 23096

Find c(3,5)c \in (3, 5) such that cos(c)=72c\cos(c) = 7 - 2c using the Intermediate Value Theorem.

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Problem 23097

-6.59 as a fraction is: 659/100-659 / 100

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Problem 23098

Is the statement true or false? The derivative of f(x)f(x) is the instantaneous rate of change of y=f(x)y=f(x) with respect to xx. Choose A, B, C, or D.

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Problem 23099

Find the average velocity of a particle given s(t)=t2+4t3s(t)=t^{2}+4t-3 over intervals [2,3] and [2,4].

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Problem 23100

Write the linear equation y=2x+5y=2 x+5 in function notation.

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