atarentspe
2022-09-12
Answered

Solve the equation $$(x+10{)}^{2}=(5-x{)}^{2}$$

You can still ask an expert for help

asked 2021-05-13

A movie stuntman (mass 80.0kg) stands on a window ledge 5.0 mabove the floor. Grabbing a rope attached to a chandelier, heswings down to grapple with the movie's villian (mass 70.0 kg), whois standing directly under the chandelier.(assume that thestuntman's center of mass moves downward 5.0 m. He releasesthe rope just as he reaches the villian).

a) with what speed do the entwined foes start to slide acrossthe floor?

b) if the coefficient of kinetic friction of their bodies withthe floor is 0.250, how far do they slide?

asked 2020-10-18

Find a least squares solution of Ax=b by constructing and solving the normal equations.

$A=\left[\begin{array}{cc}3& 1\\ 1& 1\\ 1& 4\end{array}\right],b\left[\begin{array}{c}1\\ 1\\ 1\end{array}\right]$

$\stackrel{\u2015}{x}=$ ?

asked 2022-09-23

A ball is thrown across a field from a height of 6 feet above the ground. The position y of the ball above the ground is modeled by $$y(x)=-\frac{32}{400}{x}^{2}+x+6$$, where x is the distance (ft) that the ball has traveled horizontally. At what exact location x does the ball reach its maximum height?

asked 2021-11-19

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric fence. With 800 m of wire at your disposal, what is the largest area you can enclose, and what are its dimensions?

asked 2021-10-01

Solve the equations.

$3(x-2)-2(3x+5)=4(x-1)$

asked 2022-07-30

A jar contains 40 coins consisting of dimes and quarters and having a total value of $4.90. How many of each kind of coin are there?

asked 2021-02-04

Solve the system of equations using Gaussian elimination

4x-8y=12

-x+2y=-3

4x-8y=12

-x+2y=-3