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nasty-shy [4]
3 years ago
12

PLZZZZ HELP!!XC

Mathematics
1 answer:
Mariana [72]3 years ago
7 0
Diameter = 22 mm
Radius = diameter/2 = 22/2 = 11 mm
Area = pi r^2
Area = pi (11^2) = 380.133 mm^2

No option corresponds to the answer 380.133

If we round off 380.133 and 379.94 it then becomes 380. So answer D.
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The function f(x)=(x-1)^2+5 is not one-to-one
Maurinko [17]

Answer:

True

Step-by-step explanation:

If x = 2 Than (x-1)^2 = 1

If x= 0 than (x-1)^2 = 1

For a one to one function this cannot happen as there x determines f(x) but also f(x) determines x.

3 0
3 years ago
The base of an isosceles triangle is parallel to the x-axis. The y-axis passes through an end point of the base. If the endpoint
AnnyKZ [126]
The first x coordinate is given by 0 and the second one is given as j. So the length of the base is j. (Sometimes in math they give letters rather than numbers. And since you know it is an isosceles then the other vertex should be at x-coordinate half j or j/2.
5 0
2 years ago
Help me please :)
kvasek [131]

Answer:

<u>13</u>

<em>Explanation:</em>

11×2-9=13

Since he spent half of his allowance on the movies and he had 11 left, you would multiply 11 x 2. Next, subtract 9 because that is not part of his allowance. You will end out with <u>13.</u>

6 0
3 years ago
Pizza house offers 4 different​ salads, 4 different kinds of​ pizza, and 5 different desserts. how many different three course m
galben [10]
To find out how many 3 course meals there are you will multiply all three numbers together.  The reason for this is that you can group each item with each of the other options.  This is a triple grouping.

4 x 4 x 5 = 80

There are 80 possible combinations.
4 0
2 years ago
Read 2 more answers
Solve for the value of k. (k+8) 400​
pashok25 [27]

Answer:

value of k = 6

Step-by-step explanation:

sum of all angles forming a straight line = 180°

so,

  • 7k + 8 + 90 + 40 = 180
  • 7k + 138 = 180
  • 7k = 180 - 138
  • 7k = 42
  • k = 42/7
  • k = 6

hence the value of k = 6

3 0
3 years ago
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