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4 years ago

13

Suppose two different states each pick a two-digit lottery number between 00 and 99 (there are 100 possible numbers). what is th

e probability that both states pick the same number?

1 answer:

maria [59]4 years ago

8 0

1 in 99 i believe, i might be wrong

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Which equation has the same soultions as x^2+6×-7=0

blagie [28]

$x^2+6x-7=0 \\ a=1 \\ b= 6 \\ c=-7 \\ \\ \boxed{\boxed{\Delta=b^2-4ac}} \\ \\ \Delta=6^2-4*1*(-7) \\ \Delta=36-(-28) \\ \Delta=64 \\ \Delta\ \textgreater \ 0 \Rightarrow \text{we have 2 solutions :} X_1 \ and X_2 \\ \\ \boxed{X_1= \frac{-b- \sqrt{\Delta} }{2a} } \Rightarrow X_1= \frac{-6-8}{2}=-7 \\ \\ \boxed{X_2= \frac{-b+ \sqrt{\Delta} }{2a} } \Rightarrow X_2= \frac{-6+8}{2} =1$

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3 years ago

(06.06 MC) The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:

zheka24 [161]

Answer:

step 2

Step-by-step explanation:

theres a one in front of the () meaning it should have look like this

4+4x+2

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3 years ago

Evaluate the temputure formula f=1.8C + 32 for C=40

sweet-ann [11.9K]

Answer:

1.8 × 40 + 32 = 104

if i got it wrong than your teacher is on crack

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3 years ago

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Please help me I will give you extra points and the brain thing

vovangra [49]

Answer:

A. n = 5

Step-by-step explanation:

S = n² + n

When S = 30:

n² + n = 30

Subtract 30 from both sides: n² + n - 30 = 0

Factorize: (n - 5)(n + 6) = 0

Therefore n = 5 or -6

As n > 2, then n = 5 only

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2 years ago

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Answer:

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what is the ratio of green m&ms to the total number m&ms

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3 years ago

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