find each value of a and b solving the linear equations

Joni Kenny
2021-03-06
Answered

find each value of a and b solving the linear equations

You can still ask an expert for help

Isma Jimenez

Answered 2021-03-07
Author has **84** answers

Given linear equations are,

Step 2

To find values of a and b.

Given equations are

from equation(3)

from equation(1)

substitute value of z and

from equation (4)

substitute

Therefore the values of a and b are

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An object is moving in the xy-plane and its position after t seconds is $r(t)=({t}^{2}+2t)i+(t+4)j$

Find an equation in x and y whose graph is the path of the object.

Find an equation in x and y whose graph is the path of the object.

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How to think while solving question like this? If $a{x}^{2}+bx+c=0$ has roots A and $A}^{n$ , then ${\left(a{c}^{n}\right)}^{\frac{1}{n+1}}+{\left({a}^{n}c\right)}^{\frac{1}{n+1}}+b=0$

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Solve the inequality:

$\mathrm{sin}\theta -\mathrm{tan}\theta <.01$

$\mathrm{sin}\theta -\mathrm{tan}\theta <.01$

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How do we know that the quadratic $3{y}^{2}-y-12$ has real root?

(a) Notice the quadratic cannot be factored into the product of two binomials with integer cofficients. Does this mean that the quadratic does not have any real roots?

(b) If the answer to part (a) is "no", then explain how we know that the quadratic does have real roots.

(c) Suppose the quadratic has roots$y=r\text{}\text{and}\text{}y=s$ . Find a quadratic with roots $r+2\text{and}\text{}s+2$ .

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(b) If the answer to part (a) is "no", then explain how we know that the quadratic does have real roots.

(c) Suppose the quadratic has roots

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Cannot solve quadratic equation through product sum product when the the first product is fraction

$\frac{16}{3}{x}^{2}-2x-45=0$

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A quadratic-linear system of equations is graphed below.

a) Use the graph to write the solution to the system. No need to show any work.

b) Write the equation of the linear function drawn on the grid. No need to show any work.

c) Write the equation of the Quadratic function drawn on the grid in standard form. [Hint: use the x-intercepts]

a) Use the graph to write the solution to the system. No need to show any work.

b) Write the equation of the linear function drawn on the grid. No need to show any work.

c) Write the equation of the Quadratic function drawn on the grid in standard form. [Hint: use the x-intercepts]