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enot [183]
3 years ago
8

Please Help me PLEASE ;-(Who ever gets it right gets the brainliest.

Mathematics
1 answer:
Kipish [7]3 years ago
3 0
So, you have to draw a line like this in the picture that I have provided. Down there. Then, you gotta do the Pythagorean theorem for that. Since it is a rectangular prism, we know that the angle in the triangle in 90 degrees, so we can use the Pythagorean Theorem. So, the Pythagorean Theorem is a^2+b^2=c^2. 2^2+3^2=x^2 4+9=x^2 13=x^2 sqrt13=x sqrt13 is 3.605551275. That is the length of the leg on the triangle you are trying to look for. Then, use the Pythagorean Theorem again, 3.60551275^2+6^2=x^2
12.99972219+36=x^2 48.99972219=x^2 sqrt48.99972219=x x=6.999980156, but when you round to the nearest tenth, it is 7. #QuickMaths

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1). (6x-5)/(x^3-4x^2+3x-12)
Lisa [10]
I have attached all the graphs below. I below you cannot factor these down. You might just have to use the graphs to find the values of x. 

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5 0
3 years ago
a recycling bin is in the shape of a rectangular box find the height of the box if it's length is 18 ft its width is 8 feet and
OLEGan [10]
<h2>Answer:</h2>

The height of the box is:

                             4 ft.

<h2>Step-by-step explanation:</h2>

Let "h" denotes the height of the box.

Length of box is denoted by "l"

and breadth or width of box is denoted by "b"

We are given l=18 ft

b=8 ft.

Also we are given surface area of rectangular box= 496 ft²

As we know that the surface area of box is given by:

Surface\ Area=2(lb+bh+hl)

i.e.

496=2(18h+8h+144)\\\\i.e.\\\\\\496=2(26h+144)

Divide both side by 2.

248=144+26h\\\\i.e.\\\\26h=248-144\\\\i.e.\\\\26h=104

on dividing both side by 26 we get:

h=4

     Hence, the height of the  box is:

                    4 ft.

7 0
3 years ago
Read 2 more answers
(x + 3)2 - 4 = 0<br> Solve algebraically.
love history [14]

Answer:

x = -1

Step-by-step explanation:

2(x + 3) - 4 = 0

2x + 6 - 4 = 0

2x + 2 = 0

2x = 0 - 2

2x = -2

x = -2 ÷ 2

x = -1

7 0
3 years ago
Read 2 more answers
Find an equation of the circle whose diameter has endpoints (1,-4) and (-3,6).
MAVERICK [17]

Answer:

(x+1)^2+(y-1)^2=58

Step-by-step explanation:

To find the equation of this circle, we must know the center and the radius.

We can find the radius by dividing the value of the distance formula by 2 (since r=\frac{d}{2}):

d=\sqrt{(-3-1)^2+(6-(-4))^2}=\sqrt{116}\\r=d/2=\frac{\sqrt{116}}{2}

We can then find the center of the circle by averaging the coordinates:

\frac{1+(-3)}{2}=-1

\frac{-4+6}{2}=1

Then, we substitute these values into the equation of a circle:

(x-(-1))^2+(y-1)^2=(\frac{\sqrt{116}}{2})^2\\(x+1)^2+(y-1)^2=58

3 0
4 years ago
Evaluate the function. f(3) = -36 Find f(-2) Answer: 3 2​
k0ka [10]

Answer:

-12

Step-by-step explanation:

f(x) = -3x^2

Let x = -2

f(-2) = -3( -2)^2

     = -3 ( 4)

     = -12

6 0
2 years ago
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