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Diano4ka-milaya [45]
3 years ago
10

If the circumference of a circle is 24pi what is the radius of the circle?

Mathematics
1 answer:
Tems11 [23]3 years ago
4 0
12 because 24 is the diameter and the radius is half the diameter
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You need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed?
Serggg [28]

Answer:

B

Step-by-step explanation:

The <u>Elimination Method</u> is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.

  • If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.
  • If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.

When multoplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).

So, option B is not allowed (it is not allowed to multiply only one part of equation)

8 0
3 years ago
50a3 + 10a2
Lady_Fox [76]
50a^3+10a^2\\\\50a^3=10\cdot5\cdot a^2\cdot a=10a^2\cdot5a\\\\50a^3+10a^2=10a^2\cdot5a+10a^2\cdot1=\huge\boxed{10a^2(5a+1)}\to\boxed{A}
3 0
3 years ago
Read 2 more answers
last year my math book cost $126,and i was told the price would increase 9% each year. If the cost continues to increase at this
mrs_skeptik [129]
2,268 because u have to add the 2 years with 126
3 0
3 years ago
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The proportion of the total area under a normal curve between two z-scores corresponds to the ______ of that range of scores.
omeli [17]

Answer:

For any normal distribution, the mean and the median will have the same value. For any normal distribution, the proportion corresponding to scores greater than z = +1.00 is exactly equal to the proportion corresponding to scores less than z = -1.00.

Step-by-step explanation:

5 0
2 years ago
Can someone answer this please
Nana76 [90]
Area is trapezium =
A=1/2h(a+b)

84=1/2(6)(7+b)

84=3(7+b)

84=21+3b

3b=84-21

B=63/3

B= 21 cm

I’m sorry if my answer turned out to be wrong but I tried my best so best of luck !!
6 0
2 years ago
Read 2 more answers
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