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Nezavi [6.7K]
3 years ago
7

Determine whether these lines are parallel, perpendicular, or neither. parallel perpendicular neither nextreset

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0
If the two lines don't connect and are right next to each other like this it is parallel.
_______                    But if they are connected and look more like this they are 
_______                    perpendicular.       ⊥
                                                                
                                                                
                                          
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A rectangular prism and its dimensions are shown in the diagram.
Y_Kistochka [10]

Answer:

Surface Area =237.5

3 0
3 years ago
Divide 3 over 4 ÷ 1 over 8 = ____.
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When you divide two fractions, you actually just flip one over (it's reciprocal) and multiply them.

\frac{3}{4} ÷ \frac{1}{8}   Use the recriprocal of \frac{1}{8} 
<span>\frac{3}{4} ÷ \frac{8}{1}   Multiply (3 x 8) and (4 x 1)
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\frac{24}{4}       Divide

6


<span>\frac{3}{4} ÷ \frac{1}{8} = 6</span>
8 0
3 years ago
The diameter D of a sphere is 18.6 cm. Calculate the sphere's surface area A
IRINA_888 [86]

Answer:

1086.3 cm²

Step-by-step explanation:

surface are of sphere = πD²

SA = (3.14)(18.6 cm)^2

SA = 1086.3 cm²

6 0
3 years ago
What is the equation of a circle with diameter AB that has endpoints A(0, 0) and B(8, 6)?
fgiga [73]

Answer:

A. (x-4)^2+(y-3)^2=25

Step-by-step explanation:

Radius:

The length of diameter(d) is the distance between A and B.

d=\sqrt{(8-0)^2+(6-0)^2}=\sqrt{64+36}=\sqrt{100}=10\\\\radius(r)=\frac{d}{2}=\frac{10}{2}=5

Centre:

Since A and B are end points of the diameter, centre is the mid point of these two. Let (x,y) be the centre of the circle.

x=\frac{8+0}{2}=4\\\\y=\frac{6+0}{2}=3\\\\

Centre is (4,3)

Equation of circle:

If (a,b) is the centre of the circle and r be the radius. Equation of circle is given by:

(x-a)^2+(y-b)^2=r^2

Here\ (a,b)=(4,3)\ and\ r=5\\Equation:\ (x-4)^2+(y-3)^2=5^2\\(x-4)^2+(y-3)^2=25

6 0
3 years ago
The length of a rectangle is 1 ft more than twice the width, and the area of the rectangle is 66ft. Find the dimensions of the r
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This is how I solve this problem

5 0
3 years ago
Read 2 more answers
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