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4 years ago

How is this solved? I have been trying for hours.

Mathematics

1 answer:

dimaraw [331]4 years ago

4 0

First you simplify the square root of -8, which is approximately -2.83. Subtract -2 by the square root of -8, and you'll get -4.83. Divide -4.83 by 2, and the answer should be -2.415 or -2.42. I'm not sure about this answer though.

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Jose trabaja en una capinteria su jhefe le `pidio que cortara 9metros en cuatro partes de la misma longitud cuantoi deberia medi

Anna11 [10]

Responder:

2 1/4 m; 225 cm

Explicación paso a paso:

Dado:

Cortar 9 metros en 4 partes de la misma longitud;

Por lo tanto,

9 metros / 4

= 2,25 metros

Por lo tanto, cada varilla será 2.25 = 2 1/4 m

En cm;

1 m = 100 cm

2,25 metros = x

x = 100 * 2,25

x = 225 cm

5 0

3 years ago

C(x)=0.4x^2-208x+37,365. what is the minimum cost of manufacturing dresses?

statuscvo [17]

2nd degree and in form ax^2+bx+c it is a prabola the minimum cost is the vertex (every parabola has only one, min or max) minimum cost is the vertex vertex=-b/(2a) a=0.4 b=-208 vertex=-(-208)/(2*0.4) vertex=208/0.8 vertex=260 (means 260 dresses) that is x value subsitute for y value C(x)=0.4(260)^2-208(260)+37365 C(x)=10325 minimum cost is $10,325

6 0

4 years ago

Please help me with this

BlackZzzverrR [31]

QUESTION 1i)

The given equation passes through

(3,11) and (-2,1).

The slope of the line is

$m = \frac{11 - 1}{3 - - 2}$

$m = \frac{10}{5}=2$

The equation is given by

$y-y_1=m(x-x_1)$

We can use any of the given points.

$y - 1 = 2(x - - 2)$

$y = 2(x + 2) + 1$

$y = 2x + 4 + 1$

The equation is

$y = 2x + 5$

QUESTION 1ii)

A point that lies on this line must satisfy the equation of this line.

We can choose any value for x and substitute to find the corresponding y-value.

When x=0,

$y = 2(0) + 5 = 5$

Therefore, the point (0,5) lies on this line.

QUESTION 1iii)

The point (0,6) does not lie on this line.

We can verify this by substituting (0,6) into the equation of the line.

$6 = 2(0) + 5$

$6 = 5$

This statement is false.

QUESTION 2

The line passes through, (0,4) and (2,0).

The slope of this line is

$m = \frac{4 - 0}{0 - 2} = - 2$

The equation of this line is

$y - 0 = - 2(x - 2)$

$y = - 2x + 4$

We substitute the point (-25,81) to determine whether this point lies on this line.

$81 = - 2( - 25) + 4$

$81 = 104$

This is a false statement.

The point (-25,81) does not lie on this line.

8 0

4 years ago

6/10+9/10= 15/10 how do I reduce it to make it in lower terms?

Nikolay [14]

To simply the answer, you must find a number that is common between the numerator and denominator. 5 is a common number between the two.
15/10÷5=3/2
The answer in a smaller form is 3/2.

6 0

3 years ago

A TV that usually sells for $183.26 is on sale for 25% off. If sales tax on the TV is 9%, what is the price of the TV, including

Hatshy [7]

183.26 times .25 = 45.815
183.26 minus 45.815 = 137.445
137.445 times 0.09 = 12.37005
137.445 plus 12.37005 = 149.81505
Which =149.82 rounded

3 0

3 years ago