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m_a_m_a [10]
3 years ago
12

What solid 3D object is produced by rotating the semicircle about line m,

Mathematics
2 answers:
GalinKa [24]3 years ago
4 0

Answer:

Step-by-step explanation: act like you are cutting a pizza slice and you will get your answer!

Sophie [7]3 years ago
3 0

A) a sphere with a radius of 2 unit

or

B) a sphere with a diameter

Step-by-step explanation:

if the given circle gives you the radius, the answer is a, if it gives you the diameter, the answer is b

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What multiplies to -4 and adds up to 7?
devlian [24]
The two numbers are (7+ sqrt(65))/2 and (7- sqrt(65))/2

(7+ sqrt(65))/2+ (7- sqrt(65))/2= 7
(7+ sqrt(65))/2* (7- sqrt(65))/2)= -4.

Hope this helps~
6 0
3 years ago
What is the value of 4 x minus 7 when x = 4?
Stolb23 [73]

Answer: 9

Step-by-step explanation: Here, we have the expression <em>4x - 7</em> and we want to evaluate the expression when <em>x</em> is equal to 4.

To evaluate an expression, we simply plug the value

of the variable into the expression and solve.

So here, since <em>x</em> is equal to 4, we have 4(4) - 7.

4(4) is equal to 16.

So we have 16 - 7 which is equal to 9.

So the value of our expression when <em>x</em> is equal to 4 is 9.

6 0
3 years ago
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What is the answer to this somebody!!!
Fed [463]

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7 0
4 years ago
-7k + 3 = -11 Solve for k.
a_sh-v [17]
K = 2
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       -3  =  -3
  -----------------          
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= 2
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