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Juli2301 [7.4K]
3 years ago
9

Help fast if you don’t know don’t answer

Mathematics
1 answer:
jonny [76]3 years ago
4 0
The answer to the question is 21/3
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The number of students in a chess club decreased from 14 to 12. What is the percent decrease? Round your answer to the nearest p
Zolol [24]

Answer:

14.2857% decrease

≈ 14.3% decrease

Step-by-step explanation:

nearest tenths : 14.3%

nearest hundredths : 14.29%

nearest thousandths : 14.286%

I hope my answer is correct, I provided more options because I wasn't sure what nearest percent wanted.

Hope this helps!

8 0
3 years ago
State the most specific name for each figure
Marina86 [1]

Answer:

7. quadrilateral, 8. square, 9. rectangle, 10. rhombus or parallelogram 11. square, 12. square, 13. rhombus or parallelogram, 14. parallelogram or rhombus

8 0
3 years ago
What are the solutions of the equation 2x2 = 2?
kkurt [141]
2x^2=2\ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=1\to \boxed{x=-1\ or\ x=1}
3 0
3 years ago
I don't understand how to do this problem.
Delicious77 [7]
Answers: 

x = 4
EF = 14
CF = 7
EC = 7

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Work Shown:

C is the midpoint of segment EF. This means that EC = CF. In other words, the two pieces are congruent. 

Use substitution and solve for x
EC = CF
5x-13 = 3x-5
5x-13+13 = 3x-5+13
5x = 3x+8
5x-3x = 3x+8-3x
2x = 8
2x/2 = 8/2
x = 4

Now that we know that x = 4, we can use this to find EC and CF

Let's compute EC
EC = 5x - 13
EC = 5*x - 13
EC = 5*4 - 13 ... replace x with 4
EC = 20 - 13
EC = 7

Let's compute CF
CF = 3x - 5
CF = 3*x - 5
CF = 3*4 - 5 ... replace x with 4
CF = 12 - 5
CF = 7

As expected, EC = CF (both are 7 units long).

By the segment addition postulate, we can say EC+CF = EF

EC+CF = EF
EF = EC+CF
EF = 7+7
EF = 14
8 0
3 years ago
Simplify 2/5 + 1/3<br><br> I NEED THIS ASAP
lana66690 [7]

Answer:

(11/15)'s

Step-by-step explanation:

(2/5) is equal to (6/15)

(1/3) is equal to (5/15)

(5/15)+(6/15)=(11/15)

5 0
3 years ago
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