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3 years ago

Help pls this is really hard and I’ve been doing this for a long time

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

Answer:

it would most likely land on green because of the fact that there is more green and i think that the next possibility would be yellow

Step-by-step explanation:

djyliett [7]3 years ago

5 0

Answer:

a) Blue

b) 1/2

Step-by-step explanation:

a) The blue sections are the most rare out of all of them, so the chance that the spinner would land on it would only be 1/8.

b) There are 4 green tiles out of 8 tiles in total. This means that half the tiles are green, therefore the chance that you land on green is 1/2

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Simplify. 100‾‾‾‾√ 20 10 −1 −25

olga_2 [115]

Answer:

Step-by-step explanation:

$\sqrt{100}$ = $\sqrt{(10)(10)}$ = 10

8 0

2 years ago

In October 2012, Apple introduced a much smaller variant of the Apple iPad, known as the iPad Mini. Weighing less than 11 ounces

nadya68 [22]

Answer:

a) 0.4286 = 42.86% probability that the battery life for an iPad Mini will be 10 hours or less

b) 0.2857 = 28.57% probability that the battery life for an iPad Mini will be at least 11 hours

c) 0.5714 = 57.14% probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours

d) 86 should have a battery life of at least 9 hours.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

The probability of being higher than x is:

$P(X > x) = \frac{b - x}{b-a}$

The probability of being between c and d is:

$P(c \leq X \leq d) = \frac{d-c}{b-a}$

Assume that battery life of the iPad Mini is uniformly distributed between 8.5 and 12 hours.

This means that $a = 8.5, b = 12$

a. What is the probability that the battery life for an iPad Mini will be 10 hours or less (to 4 decimals)?

$P(X \leq x) = \frac{x - a}{b-a}$

$P(X \leq 10) = \frac{10 - 8.5}{12 - 8.5} = 0.4286$

0.4286 = 42.86% probability that the battery life for an iPad Mini will be 10 hours or less.

b. What is the probability that the battery life for an iPad Mini will be at least 11 hours (to 4 decimals)?

$P(X > x) = \frac{b - x}{b-a}$

$P(X > 11) = \frac{12 - 11}{12 - 8.5} = 0.2857$

0.2857 = 28.57% probability that the battery life for an iPad Mini will be at least 11 hours

c. What is the probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours (to 4 decimals)?

$P(c \leq X \leq d) = \frac{d-c}{b-a}$

$P(9.5 \leq X \leq 11.5) = \frac{11.5 - 9.5}{12 - 8.5} = 0.5714$

0.5714 = 57.14% probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours.

d. In a shipment of 100 iPad Minis, how many should have a battery life of at least 9 hours (to nearest whole value)?

Proportion of iPad Minis with a battery life of at least 9 hours.

$P(X > 11) = \frac{12 - 9}{12 - 8.5} = 0.8571$

Out of 100:

0.8571*100 = 85.71

To the nearest whole number

86 should have a battery life of at least 9 hours.

5 0

3 years ago

Explore and review six different ways of classifying triangles.

yanalaym [24]

1)Obtuse Triangle: A triangle with one obtuse angle.

2)Acute Triangle: A triangle where all three angles are acute.

3)Equiangular Triangle: A triangle where all the angles are congruent.

4)Isosceles Triangle: A triangle with at least two congruent sides.

5)Equilateral Triangle: A triangle with three congruent sides

6 0

3 years ago

Devon writes a number pattern. He starts with 3 and follows the rule “multiply by

Fed [463]

Answer:

3,6,12,24.48,96,192

Step-by-step explanation:

3 0

3 years ago

Sup community simplify this in 5 mins −5·(−a)·(−a)·(−4)·a thx 4 help!!!!1111!!!1!111

liraira [26]

Answer:

20a³

Step-by-step explanation:

Simply multiply:

-5(-4) = 20

-a(-a)(a) = a²(a) = a³

20a³

6 0

3 years ago

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