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Orlov [11]
3 years ago
10

Please help me with this question

Mathematics
1 answer:
Hunter-Best [27]3 years ago
4 0

Five of the 25 squares in Elsa's grid are "r,r" indicating two 6th graders are chosen. Her experimental probability is 5/25 = 20/100 = 20%.

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Given f(x)=22x+12, find f(7)
Zarrin [17]

Substitute x for 7.

f(x)=22x+12

f(7)=22(7)+12

Multiply first, then complete addition.

f(7)=154+12

f(7)=166

4 0
3 years ago
Read 2 more answers
I need help with this proof, the given and prove are at the top. Plzzzz help
Goshia [24]

Answer:  The proof is mentioned below.

Step-by-step explanation:

Here, Given : m∠AOC = 160°  m∠AOD= (3x-10)° and  m∠ DOC= (x+14)°

Prove: x= 39°

      Statement                                              Reason

1. m∠AOC = 160°, m∠AOD= (3x-10)°    1.  Given

and m∠ DOC= (x+14)°    

2. m∠AOD+m∠DOC=m∠AOC         2. Because OD divides ∠AOC

                                                              into ∠AOD and ∠DOC

3. (3x-10)° +(x+14)°= 160°                     3. By substitution

4.  4x+4 = 160°                                    4. By equating like terms

5. 4x= 156°                                          5. By subtraction property

                                                             of equality

6. x= 39°                                              6. By division property of equality


7 0
3 years ago
The first three terms of a sequence are given. Round to the nearest thousandth (if
dimulka [17.4K]

Step-by-step explanation:

25,375,000

please give me brainliest for no reason because you are a generous and kind person!!!!!

8 0
3 years ago
What number should be added to both sides of the equation to complete the square x^2+3x=6
Allisa [31]
Take half of the coefficient of x:  It is 3, and half that is 3/2.


Then   <span>x^2+3x=6  becomes:

</span><span>           x^2+3x + (3/2)^2 =6 + (3/2)^2, and

             (x+3/2)^2 = 6 + 9/4

You were not asked to solve the equation, but why not do it for the practice?

</span>Solve (x+3/2)^2 = 6 + 9/4 for x.  There will be 2 values.
8 0
3 years ago
To get from the post office to the library, Sindy walked due north and then due east. The distance Sindy walked east is 20 meter
kaheart [24]
A. x∧2+(x+20∧2=150∧2  is correct.

because you need to plug the numbers into the pathagoreum theorum which is 
a∧2+b∧2=c∧2

150 is our c because it is the side right accross from the right angle.

which number is a and which number is b does not matter.

x is the distance north so we can assign that to a and the distace east is north plus 20 so we can assign b to x+20.
6 0
3 years ago
Read 2 more answers
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