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3 years ago

Pls help I really don’t understand I’ll be thankful thanks and no links

Mathematics

1 answer:

inysia [295]3 years ago

6 0

Answer:

A: Right

B: Acute

C: Obtuse

D: Acute

Step-by-step explanation:

A: Right

(90 degrees)

B: Acute

(less than 90)

C: Obtuse

(over 90 degrees)

D: Acute

(less than 90)

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The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000

valina [46]

Answer: 61,750 miles

Step-by-step explanation:

Given : The p-value of the tires to outlast the warranty = 0.96

The probability that corresponds to 0.96 from a Normal distribution table is 1.75.

Mean : $\mu=60,000\text{ miles}$

Standard deviation : $\sigma=1000\text{ miles}$

The formula for z-score is given by : -

$z=\dfrac{x-\mu}{\sigma}\\\\\Rightarrow\ 1.75=\dfrac{x-60000}{1000}\\\\\Rightarrow\ x-60000=1750\\\\\Rightarrow\ x=61750$

Hence, the tread life of tire should be 61,750 miles if they want 96% of the tires to outlast the warranty.

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3 years ago

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Step-by-step explanation:

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2 years ago

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melisa1 [442]

Answer:

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3 years ago

15. 12, 8, 14, 7, 16, 6, 18, ......., b. 6, 20 a. 5, 18 d.6,21 C. 5, 20

babymother [125]

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3 years ago

Omar makes a total of $51.75 selling brownies and muffins at a bake sale if he sells 16 brownies for $2.25 each how many muffins

telo118 [61]

Answer:

He can make 9 Muffins

Step-by-step explanation:

16*2.25=36

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