Lina Neal
2022-09-13
Answered

Which of the numbers 3,12,14 is the root of the equation 72:b+13=19?

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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 2022-09-01

How many liters of a 70% alcohol solution must be added to 50 L of a 40% alcohol solution to produce a 50% alcohol solution?

asked 2022-07-28

Jack invests $1000 at a certain annual interest rate, and he invests another $2000 at an annual rate that is one-half percent higher. If he receives a total of $190 interest in one year, at what rate is the $1000 invested?

asked 2022-04-30

problem 1)4e^2x+10=18

problem 2)27^n+1=(⅓)^4n-1

problem 3)The population of a town is increasing at a rate of 4.5% per year. The city council believes it

will have to add another school when the population reaches 150,000 people. Currently, there are

50,000 people living in this town. How long will it be before they need to build this school to the

nearest tenth of a year? Solve algebraically using logarithms.

PLEASE HELP MEE PLEASEE

asked 2021-09-23

What is wrong with the following equation?

${x}^{2}+x-\frac{6}{x}-2=x+3$

asked 2021-02-09

Two times the least of three consecutive odd integers exceeds three times the greatest by 15. What are the integers?