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nevsk [136]
2 years ago
7

Factor 2x^2-7x-15. Factored form=( + )( - )

Mathematics
1 answer:
Tems11 [23]2 years ago
8 0

Answer:

work is pictured and shown

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Three students failed their last test. If 12% of the class failed, how many students are in the class?
stellarik [79]

Answer:

There are 25 students in the class.

Step-by-step explanation:

Let x be the number of students in the class

12% failed and the number of students is 3

x*12% = 3

x*.12 = 3

Divide each side by .12

x * .12 /.12 = 3/.12

x =25

There are 25 students in the class

3 0
2 years ago
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What is the area of the semi circle if the diameter is 10 cm
Fudgin [204]

Answer:

39.25 cm

Step-by-step explanation:

The formula for a circle is pi x radius x radius.

So to get the radius, you multiply 10 and 1/2.  You should get 5.  Then you multiply 5 by 5.  You should get 25.

Then you multiply 3.14 and 25.  You should get 78.5.

The last step is to divide 2 by 78.5. You should get 39.25

3 0
3 years ago
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Write and Solve Equations-Word Problems help
Ber [7]

Answer:

blue = 110

red = 83

Step-by-step explanation:

110 + 83 = 193

and the blue jar has 27 more coins than the red jar , so this is correct!

5 0
2 years ago
Explain what the scale factor for each category means
Rina8888 [55]
The scale factor for math numbers are the numbers you multiply to get an anwser for its factor.
Ex: factor of 2 is 2,4,6,8 and so on with each number
4 0
3 years ago
What is the solution to this system of equations?<br> 2x+y−z=−3<br> 5x−2y+2z=24<br> 3x−z=5
raketka [301]

Answer:

x=2

Step-by-step explanation:

7 0
2 years ago
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