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Nady [450]
3 years ago
9

Write an expression that is equivalent to x+x+x+x+-20

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

4x-20

Step-by-step explanation:

you put the x's together and since its negative,you can make it -20 instead of +-20

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Use pi=3 calculate the length of a cicumference of a circle with a radius of 5cm
8_murik_8 [283]
Circumference=2pir
r=5
pi=3
circumference=(2)(3)(5)
circumfernce=6(5)
circufmerence=30

answer is 30cm
5 0
2 years ago
How do I find the perimeter of this ?
gavmur [86]

Answer:

26 is the perimeter

Step-by-step explanation:

you add all of the side numbers just like this:

9+5+12= 26 :)

     Hope this helped :D

3 0
3 years ago
A random number generator app on your phone generates two numbers between 0 and 8. What is the probability that the first number
aev [14]

Answer:

1/27

Step-by-step explanation:

There are 9 numbers between 0 and 8.  3 of them are less than 3 (0, 1, and 2), and 1 of them is 6.

The probability is therefore (3/9) (1/9) = 1/27.

8 0
2 years ago
14) Simplify: -2x(3 - 5x)
harina [27]

Answer:

-6x +10x= 4x

Step-by-step explanation:

-2x(3 - 5x)

-6x +10x= 4x

3 0
3 years ago
PLS HELP!! A student randomly guesses the answers to two true-false questions. Describe and correct the error in finding the pro
Nitella [24]

Answer:

The student was wrong. The probability is actually 1/4.

Step-by-step explanation:

Let's say you have question A and question B. You could have incorrect on A, and incorrect on B. Or, you could have incorrect on A, but a correct on B. Or, you could have an incorrect on B, but a correct on A. Or, both could be correct. <em><u>Since there are 4 different possibilities, the actual probability is 1/4.</u></em>

6 0
2 years ago
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