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scoundrel [369]
3 years ago
9

Does a shape with a right angle always have perpendicular sides? Explain

Mathematics
2 answers:
matrenka [14]3 years ago
6 0

Answer:

If you ever see a little square at the corner of a shape, then you know that not only is this a right angle, and thus, 90 degrees, but that the two lines that form such an angle are perpendicular to one another. Squares and rectangles always have four right angles!

Step-by-step explanation:

Aleks [24]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

A right angle means that the lines will create an L or X or T when they intersect. This is exactly the definition of perpendicular, that the shapes will intersect and create at least one right angle.

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Write the expression n n n n n n using an exponent. Name the base and the exponent.​
fiasKO [112]

Answer:

n⁶

Step-by-step explanation:

Base= n

exponent=⁶

8 0
3 years ago
Answer the following questions about the sphere whose equation is given by x2+y2+z2−8x+4y=−4. 1. Find the radius of the sphere.
Anna [14]

Answer:

we have (a,b,c)=(4,-2,0) and R=4 (radius)

Step-by-step explanation:

since

x²+y²+z²−8x+4y=−4

we have to complete the squares to finish with a equation of the form

(x-a)²+(y-b)²+(z-c)²=R²

that is the equation of a sphere of radius R and centre in (a,b,c)

thus

x²+y²+z²−8x+4y=−4

x²+y²+z²−8x+4y +4 = 0

x²+y²+z²−8x+4y +4 +16-16 =0

(x²−8x + 16) + (y² + 4y + 4 ) + (z²) -16 = 0

(x-4)² + (y+2)² + z² = 16

(x-4)² + (y-(-2))² + (z-0)² = 4²

thus we have a=4 , b= -2 , c= 0 and R=4

8 0
3 years ago
O triplo de um mumero somado a 9 e igual a 30 .qual e esse numero
-Dominant- [34]
Do you think than i ve understood it right 

3x+9=30

3x=21

x = 21/3 = 7

x = 7

hope helped 
7 0
4 years ago
Please help me solve this
Ugo [173]
The slope of the line is 4/5!

I hope this helped! Mark me Brainliest! :) -Raven❤️
7 0
3 years ago
Pls Help! Very Easy! 10 points! Brainliest if you are correct!
SSSSS [86.1K]
We can see that the 33 degrees corresponds to angle A (parallel lines) meaning they’re equal.
This means that 33 + 2x = 5x (5x is the exterior angle, so the other two interior angles’ sum must equal to it)
3x = 33
x = 11
3 0
3 years ago
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