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givi [52]
3 years ago
7

-q/5 =30 HELP PLEASE

Mathematics
2 answers:
Julli [10]3 years ago
6 0

Answer:

q = -150

Step-by-step explanation:

-q/5 = 30

Multiply each side by 5/1 to get -q by itself:

-q = 150

Because there is a negative sign in front of the q, you need to multiply both sides by -1, to get only q on one side:

q = -150

Arturiano [62]3 years ago
6 0

Answer:

q= -150

Step-by-step explanation:

30*5=150 and since there is a negative sign in front of the q, 150 has to be negative for the answer to be positive.

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the class marks of a distribution are 37 42 and 47 the class limits corresponding to class mark 42 are
I am Lyosha [343]

Answer:

39.5,44.5

Step-by-step explanation:

Let\ the\ lower\ limit\ and\ the\ upper\ limit\ of\ the\ first\ interval\ be\ u_1,v_1.\\Let\ the\ lower\ limit\ and\ the\ upper\ limit\ of\ the\ second\ interval\ be\ u_2,v_2.\\Let\ the\ lower\ limit\ and\ the\ upper\ limit\ of\ the\ third\ interval\ be\ u_3,v_3.\\Hence,\\As\ the\ class\ marks\ are\ uniform\ with\ an\ a\ difference\ of\ 5, the\\ observation\ is\ continuous\ and\ the\ class\ size\ is\ 5\ too.\\Hence,\\v_1=u_2, v_2=u_3\\Now,\\Lets\ consider\ the\ first\ two\ classes.\\37=\frac{u_1+v_1}{2} \\42=\frac{u_2+v_2}{2}\\By\ adding\ the\ equations:\\79= \frac{u_1+v_1}{2}+\frac{u_2+v_2}{2}\\79=\frac{u_1+v_1+u_2+v_2}{2}\\79=\frac{(u_1+v_2)+(v_1+u_2)}{2}\\79=\frac{(u_1+v_2)}{2}+\frac{(v_1+u_2)}{2}\\Now,\\As\ the\ mid-point\ between\ two\ points\ can\ be\ calculated\ by\\ its\ average:\frac{u+v}{2} \\Hence,\\u_2\ lies\ in\ the\ mid-point\ of\ u_1\ and\ v_2.\\u_2=\frac{(u_1+v_2)}{2}\\

Hence,\\By\ substituting\ u_2=\frac{(u_1+v_2)}{2},\\79=u_2+\frac{v_1+u_2}{2}\\As\ v_1=u_2[Proven],\\79=u_2+ \frac{u_2+u_2}{2}\\79=u_2+\frac{2u_2}{2}\\79=2u_2\\Hence,\\u_2=\frac{79}{2}\\u_2=39.5\\Now,\ as\ we\ already\ know\ that\ the\ class\ size=5,\\v_2-u_2=5\\Hence,\\v_2=5+u_2\\Here,\\v_2=5+39.5\\v_2=44.5\\Hence,\\The\ upper\ limit\ of\ the\ second\ interval=44.5\\The\ lower\ limit\ of\ the\ second\ interval=39.5\\

7 0
3 years ago
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Answer:

=2.4 cm

Step-by-step explanation:

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x=(3.0 cm×0.96 cm)/1.2 cm

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What does "co-terminal" mean?
pochemuha
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Step-by-step explanation:

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Step-by-step explanation:

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