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Ierofanga [76]
3 years ago
7

What equation is equal to 11×-12

Mathematics
2 answers:
Andreyy893 years ago
7 0

Answer:

132

Step-by-step explanation:

Nimfa-mama [501]3 years ago
3 0
_______-12 x 11________
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Alvin is 15 younger than elga the sum of their age is 27 what is elga age
zloy xaker [14]

Answer:

27 years old

Step-by-step explanation:

Let Alvin's age be x and Elga's age is y:

y - x = 15

x + y = 27

2y = 42 (use elimination method)

y = 21

x = 6 (plug it back into either equation)

Therefore Alvin is 6 and Elga is 27

7 0
2 years ago
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A bag contains 80 marbles: 40 are red, 20 are blue, and 20 are black. what is the probability of selecting a red or blue marble
DedPeter [7]
40 % out of 80 for red
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4 0
3 years ago
Im distributive property and combining like term and I have to simplify this expression 10(7r)
faltersainse [42]
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8 0
3 years ago
For the given polynomials find the sum of the squares of the roots. P(x)=x^3-x^2-18x+k
slega [8]

\text{Given that,}\\\\P(x) = x^3 -x^2 -18x+k\\\\\text{If the roots are}~ \alpha, ~ \beta,~\text{and}~ \gamma, ~ \text{then},\\\\\alpha +\beta+\gamma= -\dfrac{(-1)}1 = 1\\\\\alpha \beta +\beta \gamma + \gamma \alpha= -\dfrac{18}1 = -18\\ \\\text{Now, sum of the  squares of the roots,}\\\\\alpha^2 + \beta^2 + \gamma^2 = ( \alpha + \beta + \gamma)^2 -2(\alpha \beta + \gamma \beta + \gamma \alpha)\\ \\~~~~~~~~~~~~~~~~~~=1^2 - 2(-18)\\\\~~~~~~~~~~~~~~~~~~=1+36\\\\~~~~~~~~~~~~~~~~~~=37

6 0
2 years ago
Hi its nice to meet you
klio [65]

Answer:

19.5

Step-by-step explanation:

165 divided by 8 is 19.5

8 0
2 years ago
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