For which of the situations would estimating be the appropriate method of calculation?

2 answers:

3 0

D. Because if you estimate on your taxes it would cause a lot of problems. estimating on a grade could get you a failing grade even if you passed. And estimating on a price would mean you might pay more than you have to... But estimating on if you have enough money is ok like adding all the dollars and not the cents totally fine :) I really hope this helps and isn't confusing:)

Nitella [24]3 years ago

3 0

D because you need to know if you have enough money to buy your stuff.

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Find the slope and the y-intercept of the line.

baherus [9]

What i got was y=-3x-1

4 0

3 years ago

Use either Gaussian elimination or Gauss-Jordan elimination to solve the given system or show that no solution exists. (If there

True [87]

Answer:

x1 = t, x2 = -t and x3 = 0

Step-by-step explanation:

Given the system of equation

x1 + x2 + x3 = 0 .... 1

x1 + x2 + 9x3 = 0 .... 2

Subtract both equation

x3 - 9x3 = 0

-8x3 = 0

x3 = 0

Substitute x3 = 0 into equation 1

x1 + x2 + 0 = 0

x1+x2 = 0

x1 = -x2

Let t = x1

t = -x2

x2 = -t

Hence x1 = t, x2 = -t and x3 = 0

5 0

3 years ago

2) For which value of P and W is P + W a rational number? P = 1/(sqrt(3)) And W = 1/(sqrt(6)) 2) P = 1/(sqrt(4)) and w = 1/(sqrt

fenix001 [56]

Answer:

P = 1/(sqrt(4)) and w = 1/(sqrt(9))

Step-by-step explanation:

Only the roots of perfect squares are rational numbers. 2, 3, 6, and 10 are not perfect squares, so their roots are irrational. Both 4 and 9 are perfect squares, so their roots are rational. The sum of rational numbers is a rational number.

$\dfrac{1}{\sqrt{4}}+\dfrac{1}{\sqrt{9}}=\dfrac{1}{2}+\dfrac{1}{3}=\dfrac{5}{6}\quad\text{a rational number}$