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3 years ago

What is 38.72 divided by 1.1?

Mathematics

2 answers:

svetoff [14.1K]3 years ago

7 0

38.72 divided by 1.1 = 35.2

Serhud [2]3 years ago

4 0

38.72 divided by 1.1 equals to 35.2.
Hope this Helped! :)

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write an equation of a line passing thru the point (-4,-11) and perpendicular to the line 4x+5y= -45

GrogVix [38]

Answer:

y = 5/4x - 6

Step-by-step explanation:

First, put 4x + 5y= -45 in y = mx + b form

4x + 5y= -45

5y = -4x - 45

y = -4/5x - 9

So, the slope is -4/5. Perpendicular lines have a opposite reciprocal slope, so the line's slope will be 5/4

To find the equation of the perpendicular line, plug in the slope and given point into y = mx + b, and solve for b

y = mx + b

-11 = 5/4(-4) + b

-11 = -5 + b

-6 = b

Plug in b and the slope into y = mx + b

y = 5/4x - 6

So, the equation is y = 5/4x - 6

3 0

3 years ago

What is the x-coordinate of the point of intersection for the two lines below?

Brut [27]

Answer:

From the graph, it is clear that the point of intersection is:

(x, y) = (-4, -1)

And the x-coordinate of the point of intersection for the two lines is:

x = -4

Step-by-step explanation:

As we know that the solution of the system of equations is the point of intersection. Let us solve it.

Given the system of equations

$\begin{bmatrix}2x+y=-9\\ 2x-5y=-3\end{bmatrix}$

solving the system of equations

subtracting 2x+y = -9 from 2x-5y = -3

$2x-5y=-3$

$-$

$\underline{2x+y=-9}$

$-6y=6$

$\begin{bmatrix}2x+y=-9\\ -6y=6\end{bmatrix}$

solving for y

$-6y=6$

Divide both sides by -6

$\frac{-6y}{-6}=\frac{6}{-6}$

$y=-1$

$\mathrm{For\:}2x+y=-9\mathrm{\:plug\:in\:}y=-1$

$2x-1=-9$

$2x=-8$

Divide both sides by 2

$\frac{2x}{2}=\frac{-8}{2}$

$x=-4$

Thus, the x-coordinate of the point of intersection for the two lines below will be:

$x=-4$

Also, the graph is attached.

From the graph, it is clear that the point of intersection is:

(x, y) = (-4, -1)

And the x-coordinate of the point of intersection for the two lines is:

x = -4

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3 years ago

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Y_Kistochka [10]

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3 years ago

10. The output is the cube of the input.<br> 1.

Sliva [168]

Answer:

$y = x {}^{3}$

6 0

3 years ago

A right angled triangle has two side lengths of 14cm and 7cm. Work out the length of x

kati45 [8]

Answer:

15.65

Step-by-step explanation:

a^2+b^2=c^2

7^2+14^2=c^2

add 49+196=245

245=c^2

square root everything to get 15.65

6 0

4 years ago