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Serjik [45]
2 years ago
14

A triangular pyramid… Pls help me out

Mathematics
1 answer:
mihalych1998 [28]2 years ago
6 0
First use pythagoras thereom to find AD ; 10^2 -8^2, square rooted. Then find DC , again using pythagoras thereom, 17^2-8^2, square rooted. Now you have AD and DC, use pythagoras thereom ; AD^2 + DC^2 = AC^2
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2

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Use the simple interest formula to find the ending balance.
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For bone density scores that are normally distributed with a mean of 0 and a standard deviation of​ 1, find the percentage of sc
Shkiper50 [21]

Answer:

a) Scores of 2 and higher are significantly high

b) Scores of -2 and lower are significantly low

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b. significantly low​ (or at least 2 standard deviations below the​ mean).

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So scores of -2 and lower are significantly low

c. not significant​ (or less than 2 standard deviations away from the​ mean).

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2 standard deviations below the mean is:

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3 0
3 years ago
Why equation is represented by the equation on the graph
Nina [5.8K]

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y=mx+b

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4 0
3 years ago
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the sides of a triangular birdcage are consecutive intergers if tge perimeter is 114 cm what is tge length of each side
alexandr402 [8]
Let:
x = first consecutive integer (or first side of △)
x + 1 = second consecutive integer (or second side of △)
x + 2 = third consecutive integer (or third side of △)

The formula for a perimeter of △ is simply the addition of three sides (or length). Since the given perimeter is 114 cm,
x + x+1 + x+2 = 114
3x + 3 = 114
3x = 114 - 3
3x = 111
x = 111 /3 = 37 cm
The three sides are 37 cm, 38 cm, and 39 cm.
5 0
3 years ago
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