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ale4655 [162]
3 years ago
12

Which sets of numbers are closed under addition? Choose all answers that are correct. A. {0, 2, 5, 8}

Mathematics
2 answers:
prohojiy [21]3 years ago
8 0
A, B, D are closed under addition
kupik [55]3 years ago
8 0
B. Even integerers I think
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3 years ago
A stick of butter weighs a quarter pound.
olga nikolaevna [1]

Answer:

you divide 13 by four and you get 3 and a quarter.  thats your answer

3 0
4 years ago
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PLZ HELP ITS DUR RIGHT NOW AND PLZ ANSWER TRUTHFULLY
yuradex [85]

Answer:

x=141

Step-by-step explanation:

(n-2)•180 = Sum of all the interior angles

n = # of sides

(7-2)•180

5•180

900= Sum of all the interior angles

Add all the angles and equal them to 900

125+122+131+x+7+x+107+x-15=900

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5 0
3 years ago
Round 607.5 to the nearest whole number.
kari74 [83]
608

607.5

.5 rounds up to 1

607+1=608
7 0
3 years ago
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NEED HELP QUICK! 20 POINTS!<br><br><br> Use the Law of Sines to find the measure of Angle R:
Troyanec [42]

Answer:

\large\boxed{m\angle R\approx76^o}

Step-by-step explanation:

\dfrac{\sin R}{SQ}=\dfrac{\sin S}{RQ}\\\\\text{We have:}\\\\SQ=32,\ RQ=26,\ S=52^o\to\sin52^o\approx0.788\\\\\text{Substitute:}\\\\\dfrac{\sin R}{32}=\dfrac{0.788}{26}\qquad\text{multiply both sides by 32}\\\\\sin R\approx0.97\to R=\arcsin(0.97)\\\\R\approx76^o

7 0
4 years ago
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