ineedhelp368
14.12.2019 •
Mathematics
The figure below shows a shaded rectangular region inside a large rectangle:
( idk on how to submit a picture but i'll explain it.)
the picture is a gray square that is 7 inches wide by 3 inches long. that gray square is inside a lighter square. the lighter square is 10 units long by 5 inches)
is much appreciated!
what is the probability that a point chosen inside the large rectangle is not in the shaded region?
select one:
a. 42%
b. 58%
c. 72%
d. 84%
Solved
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Ответ:
b. 58%
Step-by-step explanation:
Calculate the area of the entire rectangle using the formula A = lw.
The lowercase "L" is for length.
"w" is for width.
The lighter square is 10 units long by 5 inches wide.
A = lw
A = (10 in)(5 in) Multiply
A = 50 in²
Calculate the area for the shaded rectangle, 7 inches by 3 inches.
A = lw
A = (7 in)(3 in) Multiply
A = 21 in²
Calculate the area for the non-shaded region by subtracting the shaded area from the total area.
50 in² - 21 in² = 29 in²
The chance that a point in the large rectangle will NOT be in the shaded region is 29/50.
Convert this fraction to decimal form by using a calculator. Divide the top number by the bottom number.
29/50 = 0.58
0.58 is in decimal form. To convert it to a percentage, multiply the number by 100.
0.58 = 58%
Therefore the probability that a point chosen inside the large rectangle is not in the shaded region is 58%.
Ответ:
teams
Step-by-step explanation:
Let's do it by parts.
Let's consider a fact: there has to be only one winner. After six games:
So,
Since it's a decreasing Geometric Sequence (we have to lead to one winner), and each match two teams play, the beaten one leaves the championship.
a) Explicit Rule (Formula):
That's to say the tournament started with 32 teams
b) Recursive Rule
If we have the first term of the Geometric Sequence we can recursively find the subsequent terms. The Recursive Rule is useful when we have the prior term and we need the following one. Also, to derive the explicit rule.