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Sonja [21]
3 years ago
10

How do I do this plzzzz helppppppp

Mathematics
1 answer:
Dovator [93]3 years ago
4 0
#8: Step 1: Divide by -2/5 on each side of your equation.

-2/5y >= 4
-------   -------
-2/5y    -2/5y

y = -10




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The five numbers summary for a data set is shown below. What is the range of the data set? 3, 7, 11, 14, 16
scoundrel [369]

Answer:

13

Step-by-step explanation:

The range of a set of data is the difference between the highest and lowest values in the set.

So, in order to find the range, you first order the data from least to greatest. Which it is already.

3, 7, 11, 14, 16

Then subtract the smallest value from the largest value in the set.

16 - 3 = 13

Hope this helps you out! : )

3 0
3 years ago
Two faces of a six-sided die are painted red, two are painted blue, and two are painted yellow. The die is rolled three times, a
Keith_Richards [23]

Answer:

(a) 4/9

(b) 19/27

Step-by-step explanation:

The probability of each die turning up red or not turning red are:

P(R) =\frac{2}{6}= \frac{1}{3}\\P(O) =\frac{4}{6}= \frac{2}{3}

(a). Exactly one face up is red.

The odds of only the first die being red are:

P(A=R) =\frac{1}{3} *\frac{2}{3}* \frac{2}{3} \\P(1=R) =\frac{4}{27}

The same odds are valid for only the second or only the third die being red. Therefore, the probability that exactly one die turns up red is:

P(R=1) = 3*\frac{4}{27}\\P(R=1) = \frac{4}{9}

(b). At least one face up is red.

The probability that at least one die turns up red is the sum of the probabilities of exactly one (found in the previous item), two or all dice turning up red.

Following the same logic as in the previous item, the probability that exactly two dice turn up red is:

P(R=2) = 3*(\frac{1}{3}*\frac{1}{3}*\frac{2}{3})\\P(R=2) = \frac{2}{9}

The probability that all die turn up red is:

P(R=3) = \frac{1}{3}*\frac{1}{3}*\frac{1}{3}\\P(R=3)=\frac{1}{27}

Thus, the probability that at least one die turns up red is:

P= P(R=1)+P(R=2)+P(R=3) = \frac{4}{9}+\frac{2}{9}+\frac{1}{27}\\P=\frac{19}{27}

4 0
3 years ago
How is (8×10,000)+(4×10)+(5×0.01)+(2×1) in standard form?
LUCKY_DIMON [66]

Eight x ten thousand plus four plus ten plus 5 times zero point zero one plus 2 times 1 Lol

6 0
3 years ago
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A restaurant sells burritos for $8.00 each. To buy supplies, the restaurant pays $1.50 for the meat and $1.00 for the other ingr
3241004551 [841]

Answer:

isnt it just 2.50$ ?

Step-by-step explanation:

1$ + 1.5$ = 2.5$ ?

meat + everything else = total

6 0
3 years ago
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Todd begins piano practice ar 4:15 p.m. and ends at 5:50 p.m. How long does he practice
kumpel [21]
He practiced for 1 hour and 30 minutes
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