treallt5
2022-09-14
Answered

Tim rides his bike 40 miles in the same time that Jesse rides 45 miles on his bike. If Tim rides two miles per hour slower than Jesse, how fast do they both ride?

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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 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 2021-05-08

Use the properties of logarithms to solve the following equation.

${\mathrm{log}}_{7}(x+2)={\mathrm{log}}_{7}(14)-{\mathrm{log}}_{7}(x-3)$

asked 2022-05-18

Solve 6x=16 for x.

asked 2022-08-09

Which of the following shows and appropriate conversion of 71.120 yards to miles?

A. $71.120yards\times \frac{3feet}{1yard}\times \frac{1mile}{5280feet}$

B.$71.120yards\times \frac{1yard}{3feet}\times \frac{1mile}{5280feet}$

C.$71.120yards\times \frac{3feet}{1yard}\times \frac{5280feet}{1mile}$

D. $71.120yards\times \frac{1yard}{3feet}\times \frac{5280feet}{1mile}$

A. $71.120yards\times \frac{3feet}{1yard}\times \frac{1mile}{5280feet}$

B.$71.120yards\times \frac{1yard}{3feet}\times \frac{1mile}{5280feet}$

C.$71.120yards\times \frac{3feet}{1yard}\times \frac{5280feet}{1mile}$

D. $71.120yards\times \frac{1yard}{3feet}\times \frac{5280feet}{1mile}$

asked 2022-09-04

The Eiffel Tower is 497 ft taller than the Washington Monument. Ifeach of the monuments were 58ft shorter, the eiffel tower would betwice as tall as the washington monument. How tall is each

asked 2021-09-15

First use the discriminant to determine whether the equation has two nonreal complex solutions, one real solution with a multiplicity of two, or two real solutions. Then solve the equation.

$9{x}^{2}-6x+1=0$