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konstantin123 [22]
3 years ago
12

A solid right pyramid has a square base with an edge length of x cm and a height of y cm. Which expression represents the volume

of the pyramid? xy cm3 x2y cm3 xy2 cm3 x2y cm3

Mathematics
2 answers:
frutty [35]3 years ago
7 0

Answer:

B

Step-by-step explanation:

solniwko [45]3 years ago
3 0

Answer:

Thus, volume of pyramid = \frac{1}{3}x^2y cm³

Step-by-step explanation:

Given: A solid right pyramid has a square base with an edge length of x cm and a height of y cm.

We have to choose from the given options an expression for the volume of the pyramid.

Volume of pyramid = \frac{1}{3}\times Area\ of\ base \times height

Since base is a square with edge length x cm.

Area of square = (side)² = x²

Thus, volume of pyramid = \frac{1}{3}x^2y cm³


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5 0
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2 years ago
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8 0
3 years ago
If x^2 + 1/x^2 = 98 find x + 1/x<br><br>​
Pavel [41]
Given,

x
2
+
x
2

1
​
=98

(x+
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​
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2
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​
+2

98+2=100

∴x+
x
1
​
=10

(x+
x
1
​
)
3
=x
3
+
x
3

1
​
+3(x+
x
1
​
)

x
3
+
x
3

1
​
+3(x+
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1
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)=1000

x
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x
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1
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=1000−3(10)=
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