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soldier1979 [14.2K]
3 years ago
11

HARDEST QUESTION EVER OMG! (That was my stereotypical teenage girl impression) ;)

Mathematics
1 answer:
ruslelena [56]3 years ago
5 0
X = -4y+3
-x-4y = -3

________________

x+4y = 3
-x-4y = -3

0 = 0 

Possible and determined system (single solution)
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a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl. What is t
Taya2010 [7]

Answer:

0.25

Step-by-step explanation:

Given that a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl.

Let X be the no of boys the couples have.  X has two outcomes with p = 0.5

X is binomial with n = no of trials = 4 and p =0.5

the probability that they will have three boys and one girl

=P(X=3)\\=4C3(0.5)^3(0.5)\\= 0.25

Reqd prob = 0.25

8 0
4 years ago
Help math! Explain! Brainliest stars and hearts if correct!
zhenek [66]
Y=2
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7 0
3 years ago
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vovangra [49]

Answer:

The longest ski pole to fit would lie diagonally. The length of the diagonal can be found by the Pythagorean theorem.

d=sqrt(1202+252)

d ~= 122.58 cm

Step-by-step explanation:

5 0
2 years ago
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A map has a scale of 2 in. = 16 mi. If you measured the distance between two cities to be 19 in. on the map, how many miles woul
VashaNatasha [74]

Answer:

Step-by-step explanation:

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152 mi

7 0
3 years ago
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3x+4y divided by 2 and x=7 and y=10
Elanso [62]

Answer:

it is 30.5

Step-by-step explanation:

(3X+4Y):2

(3×7+4×10):2

(21+40):2

61:2

30.5

4 0
3 years ago
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