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shepuryov [24]
2 years ago
13

What is the length of the unknown leg of the right​ triangle?

Mathematics
1 answer:
Alik [6]2 years ago
8 0

1. Use the Pythagorean Theorem since this is a right triangle:

a^2 + b^2 = c^2

3^2 + b^2 = 4^2

b^2 = 4^2 - 3^2

b = √ 7

b = 3

answer : 3

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Use the shell method to find the volume of the solid generated by revolving the region bounded by the line y=x+2 and the parabol
Viktor [21]

Answer:

8 π or

25.13 unit^3 to the nearest hundredth.

Step-by-step explanation:

(A)

The height of the shell is (2 + x - x^2) and  the radius is (2 - x).

V = 2π ∫(2 - x)(x + 2 - x^2) dx  between the limits x = 0 and x = 2.

=  2π ∫ (2x + 4 - 2x^2 - x^2 - 2x + x^3) dx

 = 2π ∫ (x^3 - 3x^2 + 4 ) dx

= 2π [ x^4/4 - x^3 + 4x ]  between x = 0 and x = 2

= 2 π [4 - 8 + 8 )

= 2 π * 4

= 8π

= 25.13 unit^3 to the nearest hundredth.

4 0
3 years ago
What is the area of the circle if DF = 16 in.?
Vlada [557]

option B is right answer

3 0
2 years ago
If a and b represent numbers, which of the following statements represents the commutative property of multiplication?
Gemiola [76]

The commutative property of multiplication states that the numbers can be multiplied in any order.

a+b = b+a : Commutative property of addition

a*b = b*a : Commutative property of multiplication

a+0=a : Additive identity property  

a*1 =a : Multiplicative identity property  

Answer : a*b =b*a


7 0
2 years ago
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Find the slope of the line in simplest form (8, 9) (-7, 14)
xeze [42]
Slope= -1/3
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4 0
2 years ago
Which expression is equivalent to 2(9 + 7)? (1 point) Select one: a. 18 + 14 b. 18 + 7 c. 11 + 9 d. 11 + 7
Rom4ik [11]

2(9 + 7) = 2*9 + 2*7 = 18 + 14

So it is a.

7 0
3 years ago
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