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Grace [21]
3 years ago
11

Is -12.2 a rational number

Mathematics
2 answers:
alisha [4.7K]3 years ago
8 0

Answer:

Yes!

Step-by-step explanation:

It does not have a repeatinf decimal

Rainbow [258]3 years ago
5 0

Yes -12.2 is a rational number because integers extend whole numbers such as ...-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6.

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Which expression is equivalent to (−7x+8x+19y)−(6y+8−20x−16y)?
Kisachek [45]

Answer:

21x + 29y - 8

Step-by-step explanation:

(−7x+8x+19y)−(6y+8−20x−16y)

−7x+8x+19y−6y-8+20x+16y

(−7x+8x+20x)+(19y−6y+16y)-8

21x + 29y - 8

5 0
2 years ago
A weighted die comes up spots with the following probabilities: Spots 1 2 3 4 5 6 Probability 0.10 0.15 0.20 0.25 0.20 0.10 If t
Mandarinka [93]

Answer:

Probability (A sum of 10)=0.1025

Step-by-step explanation:

\begin{center}\begin{tabular}{ c c c c c c c } Spots & 1 & 2& 3 & 4& 5 & 6 \\ \\Prob & 0.10 & 0.15& 0.20 & 0.25& 0.20 & 0.10     \end{tabular}\end{center}

To find the Probability the sum is 10, we can either have

i. a 4 and a 6

ii. a 5 and a 5

Pr (A AND B) = Pr (A) x Pr(B)

Pr (A OR B) = Pr (A) + Pr(B)

Probability (A sum of 10) = Pr(getting a 4 AND a 6) OR Pr(getting a 5 AND a 5)

=(0.25 x 0.25)+(0.20 x 0.20)

=0.0625+0.04

=0.1025

3 0
3 years ago
Please answer this question don’t upload a picture of the answer because I’m not able to open it. Pleas
lawyer [7]
Answer is B cuz 90 plus 63 plus A will get you 180
5 0
3 years ago
A Parallelogram must be a rectangle when it’s •A.)Diagnols are perpendicular •B.Diagnols are congruent •C. opposite sides are pa
Verizon [17]

Answer:A


Step-by-step explanation: the diagonals face each other making them perpendicular making both sides parallel to each other, being straight.


4 0
3 years ago
Read 2 more answers
Each week your science teacher gives a fifteen-point quiz. Your current scores are shown in the table. What is your mean quiz sc
Vlad [161]

12

mean is adding all the terms and dividing by number of terms so once you add them all you be 108 and then divide by 9 giving you the mean, 12

4 0
3 years ago
Read 2 more answers
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