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nignag [31]
3 years ago
7

Simplify: (2-2x5-5)-4

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
7 0

Answer:

(2*5^2)+4/3^2-5

(2*25)+4/3^2-5

50+4/3^2-5

50+1.7-5

46.7

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Jeremiah read 5/6 a book in 2/3 an hour. How much can he read in an hour?
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Answer:he can read 1 and 3/12 or 15/12 books in an hour.

Step-by-step explanation:

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3 years ago
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Help pls with math lotsss of points!!!
sveticcg [70]

Answer:

5x^2+22x-12         x cannot be -5, -4, -2

(x+5)(x+4)(x+2)

Step-by-step explanation:

In order to solve this, your denominator must be the same. Let's start by writing out the two different quadratic formulas:

x^2 + 6x + 8 <-- This should factor out to (x+4)(x+2)

x^2 + 7x + 10 <-- This should factor out to (x+5)(x+2)

Now that you have factored out the two quadratics, plug them into the equation.

    5x        -       3

(x+4)(x+2)      (x+5)(x+2)

Now as we know, -2 cannot be x because it will turn the entire equation undefined. Multiple top and bottom with (x+5) on the right side and (x+4) on the left side.

5x (x+5)             -           3(x+4)  

(x+5)(x+4)(x+2)      (x+5)(x+4)(x+2)

Focus on the top. 5x(x+5) will turn out to be 5x^2+25x. 3(x+4) will turn out to be 3x+12. Combine the two equations because now they are equal to each other and do the subtraction:

5x^2+25x - (3x+12)     =    5x^2+22x-12         x cannot be -5, -4, -2

 (x+5)(x+4)(x+2)               (x+5)(x+4)(x+2)

4 0
2 years ago
If there are 25 students in a class in which 5 of the 11 guys wear glasses and 6 out of the 14 girls wear glasses- what is the p
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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

when c=7, then we put that value in for c in the equation c-2

c-2

(7)-2

5

3 0
3 years ago
What's 76×32÷5+(19×92)-15×2? Need help ASAP​
arsen [322]

Answer:

2204.4

Step-by-step explanation:

Okay so we want to always use order of operations: PEMDAS

Sop first we do what is in the parenthesis. 19*92 is 1748.

Now, going from left to right, we do multiplication and division. 76*32 is 2432. Then we divide that by 5 to get 486.4. And the last bit is 15*2 which is 30.

Your equation now is 486.4+1748-30.

The final answer is 2204.4

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3 years ago
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