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nevsk [136]
2 years ago
12

The sum of angles in a triangle is 180 prove

Mathematics
1 answer:
Tatiana [17]2 years ago
7 0

three angles= 180

180/3

60

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What would the answers be?
babunello [35]
Is C and D because 10x^2-6x^2=36+64
                                 4x^2=100
                                 x^2=25
                                 x= -5 or 5

6 0
3 years ago
There is 1000cm3 of aluminum available to cast a trophy that will be in the shape of a right square pyramid. Is this enough alum
stealth61 [152]

The 1000 cubic centimeters of aluminium is enough for aluminium a trophy  that will be in the shape of a right square pyramid and has a base edge of 10 cm and a slant height of 13 cm.

Step-by-step explanation:

The given is,

                    Volume of aluminium available is 1000 cubic centimeters

                    Shape of trophy is right square pyramid

                    Trophy has a base edge of 10 cm and slant height of 13 cm

Step:1

                     Formula for volume of right square pyramid,

                                               Volume, V = a^{2}\frac{h}{3}.....................................(1)

                     Where, a - Base edge value

                                  h - Height of pyramid

                      From given,

                                        a = 10 cm

                                        h = 13 cm

                      Equation (1) becomes,

                                           = 10^{2}(\frac{13}{3}  )

                                           = (100)(4.333)

                                           = 433.33 cm^{3}

             Volume of trophy = 433.33 cubic centimeters

             Compare with the volume of available aluminium and volume of right square pyramid,                          

            Volume of available aluminium > Volume of right square pyramid

                                               1000 cm^{3} > 433.33 cm^{3}

            So, the given volume of aluminium is enough to make right square pyramid shaped trophy.

Result:

          The 1000 cubic centimeters of aluminium is enough for aluminium a trophy  that will be in the shape of a right square pyramid and has a base edge of 10 cm and a slant height of 13 cm.

6 0
3 years ago
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5) Which is the better deal for mechanical
Troyanec [42]

Answer:

Staples

Step-by-step explanation:

5.69/25<1.25/4

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Johnny is saving money to buy a Nintendo Switch. He already has $100 saved. He plans to save $20 from his allowance each week. W
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1. y=20x+100(this is the equation)

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Help please 50% of my grade!!
lina2011 [118]
#2. (-10, 0) (-10, -8) (0, -8)

#3. (-10, 0) (-10, 8) (-7, 8)

#4. (-10, 0) (-7, 0) (-7, 8)

#8. (0, 8) (0, 0) (8, 0) (10, 4)

#9. (-7, 0) (-7, 8) (0, 8) (0, 0)

#10. (-10, 0) (0, 0) (0, -8)

Not sure about the others. Hope this helps, though.
8 0
3 years ago
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