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Gone fishing. Debbie traveled by boat 5 miles upstream to fish in her favorite spot. Because of the 4-mph current, it took her 20 minutes longer to get there than to return. How fast will her boat go in still water?

Hayley Bernard 2022-07-27

Mr. James wanted to plant a garden that would bein the shape of arectangle. He was given 80 feet of fencing toenclose his garden. Hewants the length to be 10 feet more thantwice the width. What are the dimensions, in feet, for a rectangular garden that will use exactly 80 feet offencing?

scherezade29pc 2022-07-27

Suppose a company did $2.000.000 in annual maintenance in 2013 and expects 80% of those to renew for 2014. Suppose that product sales for 2013 were $2,000,000 (which included free maintenance in 2013) and 75% of those were expected to pay an annual maintenance of 10% of the purchase price in 2014. What will be the annual maintenance collected in 2014?

valtricotinevh 2022-07-27

Let $h (x) = 4^{2 x - 1}$ find x.
$h (x) = \sqrt{2}$

Darryl English 2022-07-27

Show that the line l given by: x=2+t, y=-2+t, z=-1+t and the plane 2x-3y+z-2=0 do not intersect.

Matias Aguirre 2022-07-27

Solve the equation: 8x-5y-3z=-15

Talon Mcbride 2022-07-27

The question is to estimate the solution to the equation f(x)=-1. A graph is shown where x=-3 and +4 creates a y=-1.

Taniya Burns 2022-07-27

A coffee house has 20 pounds of a coffee that sells for $4 perpound. How many pounds of coffee that sells for $8 a pound shouldbe mixed with 20 pounds of the $ 4 per pound cofee to obtain ablend that will sell for $5 per pound? How much of the $5 per poundcoffee will there be?

Javion Henry 2022-07-27

Solve the equation.
$T_{2} =$
$T_{1} = 300 K, k = {1.38066.10}^{- 23}$
$T_{1}^{2} e^{\frac{- 0.8 e V}{k * T_{1}}} = T_{2}^{2} * e^{\frac{- 0.4 e V}{k * T_{2}}}$

przesypkai4 2022-07-27

Five-sixth more than two-thirds of a number results in two times the number. Find the number.

Leila Jennings 2022-07-27

Solve the equation on the interval $[0, 2 π]$
$\sin 4 x = \frac{\sqrt{3}}{2}$

Urijah Estes 2022-07-27

Solve the logarithmic equation:
log2 x = -1

yasusar0 2022-07-27

The cost to produce x units of wire is C = 50x + 400, while the revenue is R = 70x. Find the interval of units of production where wire production will at least break even.

Alonzo Odom 2022-07-27

Find an equation of the line containing the given pair of points.
(-7,-4), (-1,-9)
The equation of the line in slope-intercept form is?

Alduccii2 2022-07-27

Prove that the chord joining the points P(cp , c/p) and Q(cq ,c/q) on the rectangular hyperbola $x y = c^{2}$ has the equation pqy + x = c(p + q). Given that the points P, Q and R lieon the hyperbola $x y = c^{2}$ , prove that:
(a) if PQ and PR are inclined equally to the coordinate axes,then QR passes through O,
(b) if angle QPR is a right anglr, then QR is perpendicular tothe tangent at P.

anudoneddbv 2022-07-27

Find all solutions of the equation.
$2 \cos x + \sqrt{2} = 0$

Freddy Friedman 2022-07-27

Suppose it is known that the coffee cools at a rate of 1degree C when its temperature is 70 degrees C. The room is 20degrees C.
a) What does the differential equation become in thiscase?
b) sketch a direction field and use it to sketch the solution curve for the initial-value problem. What is the limiting value of the temperature?
c) Use Euler's method with step size h=2 minutes to estimate the temperature of the coffee after 10 minutes

Ashlyn Krause 2022-07-27

Solve the equation on the interval $[0, 2 π)$
$\tan x + \sec x = 1$

wstecznyg5 2022-07-27

Solve the equation.
$10^{x} = 0.03$

klepkowy7c 2022-07-27

Alice is 6 years older than Toula. In two years, she will be twice as old as Toula. How old is Toula?

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