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3 years ago

How to convert 11/13 to a decimal.

Mathematics

2 answers:

Rus_ich [418]3 years ago

6 0

Answer:

11/13 in a decimal is : 0.8462

in precentage: 84.62

Step-by-step explanation:

SIZIF [17.4K]3 years ago

3 0

The answer is 0.8461

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Find all values of y such that the distance between (7,y) and (-3,8) is 18 Y=

patriot [66]

To calculate the distance between 2 points we will use the following equation:

$D=\sqrt[]{(x_2-x_1)^2-(y_2-y_1)^2}$

For this exercise we have the following data:

$\begin{gathered} D=18 \\ x_1=7 \\ x_2=-3 \\ y_1=y \\ y_2=8 \end{gathered}$

We plug the values into the distance equation and solve for the unknown Y

$undefined$

7 0

1 year ago

An airliner maintaining a constant elevation of 2 miles passes over an airport at noon traveling 500 mi/hr due west. At 1:00 PM,

butalik [34]

Answer:

$\frac{ds}{dt}\approx 743.303\,\frac{mi}{h}$

Step-by-step explanation:

Let suppose that airliners travel at constant speed. The equations for travelled distance of each airplane with respect to origin are respectively:

First airplane

$r_{A} = 500\,\frac{mi}{h}\cdot t\\r_{B} = 550\,\frac{mi}{h}\cdot t$

Where t is the time measured in hours.

Since north and west are perpendicular to each other, the staight distance between airliners can modelled by means of the Pythagorean Theorem:

$s=\sqrt{r_{A}^{2}+r_{B}^{2}}$

Rate of change of such distance can be found by the deriving the expression in terms of time:

$\frac{ds}{dt}=\frac{r_{A}\cdot \frac{dr_{A}}{dt}+r_{B}\cdot \frac{dr_{B}}{dt}}{\sqrt{r_{A}^{2}+r_{B}^{2}} }$

Where $\frac{dr_{A}}{dt} = 500\,\frac{mi}{h}$ and $\frac{dr_{B}}{dt} = 550\,\frac{mi}{h}$ , respectively. Distances of each airliner at 2:30 PM are:

$r_{A}= (500\,\frac{mi}{h})\cdot (1.5\,h)\\r_{A} = 750\,mi$

$r_{B}=(550\,\frac{mi}{h} )\cdot (1.5\,h)\\r_{B} = 825\,mi$

The rate of change is:

$\frac{ds}{dt}=\frac{(750\,mi)\cdot (500\,\frac{mi}{h} )+(825\,mi)\cdot(550\,\frac{mi}{h})}{\sqrt{(750\,mi)^{2}+(825\,mi)^{2}} }$

$\frac{ds}{dt}\approx 743.303\,\frac{mi}{h}$

6 0

3 years ago

3 - 2(b - 2) = 2 - 7b<br> b =<br><br><br> Please show work

Firdavs [7]

3- 2b +4 = 2-7b
3+4 = 2 - 5b
7 = 2 -5b
5 = -5b
-5b /-5 = -1
b = -1

5 0

3 years ago

A mechanic charges $45 per hour and parts cost $125 write an expression for the total if the mechanic works h hours

Free_Kalibri [48]

This is my expression: 45h + 125. I hope this helps.

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3 years ago

Sue graphed the formula for converting temperatures from Fahrenheit to Celsius.

goldenfox [79]

Answer:

Answer is 10 degrees Celsius.

Step-by-step explanation:

The x value or Fahrenheit is 50 at the same spot the y value is 10

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3 years ago