 # Algebra Word Problem Solutions

Recent questions in Algebra texelaare 2021-02-15

## The points (-9,0) and (19,0) lie on a parabola. a) Determine an equation for its axis of symmetry. b) The y-coordinate of the vertex is -28. Determine an equation for the parabola in factored form. c) Write your equation for part b) in standard form. babeeb0oL 2021-02-14

## Need to calculate:The factorization of $6{z}^{3}+3{z}^{2}+2z+1$. tinfoQ 2021-02-14

## Find the solution (x,y)to the system of equations. $\left\{\begin{array}{l}3x+y=28\\ -x+3y=4\end{array}$ Multiply the coordinates $x\cdot y$ Brennan Flores 2021-02-14

## (a) Find a system of two linear equations in the variables x and y whose solution set is given by the parametric equations $x=t$ and y $=3-2t.$ (b) Find another parametric solution to the system in part (a) in which the parameter is s and $y=s.$ Kyran Hudson 2021-02-14

## A ferry boat transports tourists among three islands. It sails from the first island to the second island, 4.42 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 80.5° west of north. Finally it returns to the first island, sailing in a direction 28.0° east of south. (a) Calculate the distance between the second and third islands. km (b) Calculate the distance between the first and third islands. Yulia 2021-02-14

## Determine whether the function represents exponential growth or exponential decay. Identify the percent rate of change. $f\left(t\right)=4\left(1.05{\right)}^{t}$ Nann 2021-02-14

## State whether the equation represents exponential growth, exponential decay, or neither. $f\left(x\right)=5\cdot {0.3}^{x}$ Emily-Jane Bray 2021-02-14

## Find the cubic polynomial whose graph passes through the points $\left(-1,-1\right),\left(0,1\right),\left(1,3\right),\left(4,-1\right).$ postillan4 2021-02-14

## One cake recipe calls for $\frac{2}{3}$ cup of sugar. Another recipe calls for $\frac{1}{4}$ cups of sugar. How many cups of sugar are needed to make both cakes? glasskerfu 2021-02-14

## Multiply and simplify $\frac{{x}^{2}+2x-\frac{3}{{x}^{2}}+1x-20}{x-\frac{1}{x}+5}$ sodni3 2021-02-14

## Solve the equivalent equations $\frac{3x+2}{5}=7$ and $x+9=20$ amanf 2021-02-14

## Fill in the bla so the resulting statement is true. when solving $3{x}^{2}+2{y}^{2}=35$ $4{x}^{2}+3{y}^{2}=48$ by the addition method, we can eliminate ${x}^{2}$ by the multiplying the first equation by -4 and the second equation by __________ and then adding the equations Haven 2021-02-14

## What are the cut points of a rational function? Explain how to solve a rational inequality.$chec{k}_{circle}$ Falak Kinney 2021-02-14

## Find the probability of the indicated event if and Fare mutually exclusive Burhan Hopper 2021-02-14

## Suppose that the current measurements in a strip of wire are assumed to follow a normal distribution with a mean of 10 milliamperes and a standard deviation of 2 milliamperes. What is the probability that a measurement exceeds 13 milliamperes? What is the probability that a current measurement is between 9 and 11 milliamperes. Tazmin Horton 2021-02-13

## Write without absolute value notation: $|6-5i|$ shadsiei 2021-02-13

## We need to calculate: The simplified value of the radical expression $\sqrt{\sqrt{2a}}$ sjeikdom0 2021-02-13

## Range Rule of Thumb for Interpreting s The 20 brain volumes $\left(c{m}^{3}\right)$ from Data Set 8 “IQ and Brain Size” in Appendix B have a mean of and a standard deviation of . Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of be significantly high? Wotzdorfg 2021-02-13 iohanetc 2021-02-13