Answer:
30.5 cm
Step-by-step explanation:
0 < h ≤ 10 ⇔ Midpoint = 5
10 < h ≤ 20 ⇔ Midpoint = 15
20 < h ≤ 30 ⇔ Midpoint = 25
30 < h ≤ 40 ⇔ Midpoint = 35
40 < h ≤ 50 ⇔ Midpoint = 45
50 < h ≤ 60 ⇔ Midpoint = 55
<u>⇒ </u><u><em>Multiply each corresponding midpoint with it's frequency</em></u>
(5 × 1) + (15 × 4) + (25 × 7) + (35 × 2) + (45 × 3) + (55 × 3) = 610
<u>⇒ </u><u><em>Divide the total of 610 by the frequencies added together</em></u>
610 ÷ (1 + 4 + 7 + 2 + 3 + 3) = 610 ÷ 20 = 30.5
Tell whether the product of Prxs and Q5x3 is defined. If so, give the dimensions of PQ.
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defined; 7 x3
defined; 3 x 7
defined; 5 x 5
Answer: x = 10
hope this helps :)
Hey there!
The correct answer is no.
2 1/8 is not equal to -2 1/8.
This is because -2 1/8 contains a negative sign, meaning it is less.
If the number was larger with the negative sign, it'd be even smaller.
For example:
-2 1/8 > -3 1/8
Hope this helps you,
Have a wonderful day! :)