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erastovalidia [21]
2 years ago
8

Which of the following are necessary when proving that the diagonals of a

Mathematics
1 answer:
geniusboy [140]2 years ago
3 0

D & B

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Who on connections academy can help me with the chaos and theory portfolio worksheet?
prisoha [69]

Answer:

not me :)

Step-by-step explanation:

6 0
3 years ago
A mattress store is having a sale all mattresses are 30% of. Nate wants to know the sale price of a mattress that is regularly $
koban [17]

Answer: $700

Step-by-step explanation:

The store is selling at 30% off.

If a mattress is $1,000, first find out what 30% of $1,000 is:

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5 0
2 years ago
The pyramid shown has a square base that is 14 centimeters on each side. The slant height is 15 centimeters. What is the surface
Ksenya-84 [330]
We know that

surface area=area of the base+4*[area of one lateral triangle side]

area of the base=b²
b is the side length of the square
b=14 cm
area of the base=14²-----> 196 cm²

area of one lateral triangle side=b*h/2
b is the side length of the square
b=14 cm
h is the height of the lateral triangle side
h is equal to the slant height 
h=15 cm

area of one lateral triangle side=14*15/2----> 105 cm²

surface area=196+4*[105]------> 616 cm²

the answer is
the surface area is 616 cm²
7 0
2 years ago
What is the value of n where 131 is the nth term of the sequence -2, 5, 12…..?
Inessa [10]
D means common difference which is the last term minus second last term .
and u can use this formula only if there is a common difference.

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3 years ago
True or False? Using the quadratic formula allows you to find the x-intercepts of a quadratic equation.
levacccp [35]
True using the formula allows you to find the x intercepts of the equation
5 0
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