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Serggg [28]
3 years ago
7

Simplify 9^2+4(9^)=21

Mathematics
1 answer:
Alika [10]3 years ago
4 0

Answer:837

Step-by-step explanation:

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Tonya packed different boxes with unit cubes. Which box has a volume of 16 cubic units?
boyakko [2]
The fourth one (The small one).
7 0
3 years ago
30 is decreased to 6 what is the percent
spin [16.1K]
X=percentage in decimal
30x=6
30/30x=6/30
x=1/5=.20

.20=20/100=20%

20%
4 0
3 years ago
Read 2 more answers
Write <img src="https://tex.z-dn.net/?f=%28-%20x%5E%7B2%7D%29%20-4x%2B2" id="TexFormula1" title="(- x^{2}) -4x+2" alt="(- x^{2})
marin [14]
Because the coefficient of x^2 is -1, we know that a will be -1.  Knowing that the coefficient of x is -4, we can calculate that p=2.  Thus, we have -1(x+2)^2+q is our equation.  This is equal to -x^2-4x-4+q.  As the constant term must be 2, we can then see that q is 6.

As such, we have -1(x+2)^2+6=0 as our factorization.

To solve this equation, we can use the quadratic formula.  Plugging in values, we have:

\frac{4+-2 \sqrt{6} }{-2}
which is equal to: (when the fraction is simplified)
-2+- \sqrt{6}
7 0
3 years ago
A building casts a shadow that is 36 feet long. At the same time of day, a nearby 9-foot tall tree casts a shadow that is 4 feet
ANTONII [103]

Answer:

16 feet is the correct answer to this problem.

5 0
3 years ago
Plz help!
Thepotemich [5.8K]

Answer:

20

Step-by-step explanation: -13 to 7 think about that. We have to add 13 to make it 0. Then we add 7. So 13 plus 7 is 20. Enjoy :)

4 0
3 years ago
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