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Diano4ka-milaya [45]
3 years ago
11

You are building a new house on a cartesian plane whose units are measured in miles. your house is to be located at the point (6

,0). unfortunately, the existing gas line follows the curve y=√16x2 6x 19. it costs 300 dollars per mile to install new pipe connecting your house to the existing line. what is the least amount of money you could pay to get hooked up to the system??
Mathematics
1 answer:
expeople1 [14]3 years ago
4 0
The cost for the hook is calculated by
C = (y - 0)(300)
C = <span>√(16x2 + 6x + 19)
To get the minimum, take the derivative of C in terms of x and equate it to zero. Solve for x and substitute it back to C to solve for the minimum cost.</span><span />
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2/5 is larger than 1/4. What is the difference?
Mila [183]
If you convert the fractions to ___/20 then you will see. Here; 2/5 = 8/20. 1/4 = 5/20. I hope this helps. 
6 0
3 years ago
What is an equation of the line that passes through the point (8,-7)(8,−7) and is parallel to the line 5x+4y=165x+4y=16?
gizmo_the_mogwai [7]

Answer:

The equation of line that passes through the point (8,-7) and is parallel to the line 5x+4y=16 is  \mathbf{y=-\frac{5}{4}x+3}

Step-by-step explanation:

We need to write an equation of the line that passes through the point (8,-7) and is parallel to the line 5x+4y=16.

The equation will be of form y=mx+b where m is slope and b is y-intercept.

Finding slope of the line:

Since both the lines are parallel, and we know that parallel lines have same slope.

The slope of given line 5x+4y=16 can be found by writing in slope-intercept form y=mx+b

5x+4y=16\\4y=-5x+16\\y=-\frac{5}{4}x+16

Comparing with y=mx+b the slope m is: m=-\frac{5}{4}

So, the slope of required line is: m=-\frac{5}{4}

Now, finding y-intercept b

y-intercept can be found using slope m=-\frac{5}{4} and point (8,-7)

y=mx+b\\-7=-\frac{5}{4}(8)+b\\-7=-5(2)+b\\-7=-10+b\\b=-7+10\\b=3

So, we get y-intercept: b=3

Now, the equation of required line having slope m=-\frac{5}{4} and y-intercept b=3 is:

y=mx+b\\y=-\frac{5}{4}x+3

So, the equation of line that passes through the point (8,-7) and is parallel to the line 5x+4y=16 \mathbf{y=-\frac{5}{4}x+3}

4 0
2 years ago
) Una compañía invierte $15,000 al 8% y $22,000 al 9%. ¿A qué tasa debe invertir
Anna35 [415]

Usando proporciones, hay que los $12,000 restantes deben ser investidos a una tasa de 11%.

<h3>¿Qué es una proporción?</h3>

Una proporción es una fracción de la cantidad total.

De las dos primeras inversiones, el ingreso es dado por:

0.08 x 15000 = $1,200.

0.09 x 22000 = $1,980

T = 1200 + 1980 = $3,180

Por la tercera inversión, busca-se un retorno de 4500 - 3180 = $1,320.

De esa forma, la tasa x es la seguiente:

12000x = 1320

x = 1320/12000

x = 0.11.

Los $12,000 restantes deben ser investidos a una tasa de 11%.

Puede-se aprender mas a cerca de proporciones es brainly.com/question/26425852

7 0
2 years ago
The slope intercept form of a linear equation is given by AX true or false
Flauer [41]
The slope intercept form is y=mx+b.
5 0
2 years ago
Find the rational numbers between 3/5 and 3/4
olga nikolaevna [1]

9/20 I think is the rational number


3 0
2 years ago
Read 2 more answers
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