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3 years ago

12

David leaves the house to go to school. He walks 290 m west and 170 m north. To the nearest tenth, how far away is he from his s

tarting point?

1 answer:

ASHA 777 [7]3 years ago

8 0

Answer:

253.8 meters

Step-by-step explanation:

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Assume the readings on thermometers are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degrees

lozanna [386]

Answer: 0.0035

Step-by-step explanation:

Given : The readings on thermometers are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degrees C.

i.e. $\mu=0$ and $\sigma= 1$

Let x denotes the readings on thermometers.

Then, the probability that a randomly selected thermometer reads greater than 2.17 will be :_

$P(X>2.7)=1-P(\xleq2.7)\\\\=1-P(\dfrac{x-\mu}{\sigma}\leq\dfrac{2.7-0}{1})\\\\=1-P(z\leq2.7)\ \ [\because\ z=\dfrac{x-\mu}{\sigma}]\\\\=1-0.9965\ \ [\text{By z-table}]\ \\\\=0.0035$

Hence, the probability that a randomly selected thermometer reads greater than 2.17 = 0.0035

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3 years ago

Christine worked 52 hours last week. If her regular hourly rate is $8 per hour and she is paid 1.5 times her hourly rate for eve

CaHeK987 [17]

Christine's weekly paycheck was $464.

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3 years ago

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Last year a website had 40,000 visitores and this year it ha 37,000 visitores

Ksenya-84 [330]

Answer:

okay, what's the rest of the question?

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3 years ago

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The equation of a circle is given. Find the circumference of a circle. Write the circumference in terms of pi.

sattari [20]

C=2πr and x^2+y^2=r^2
r=4 because of the equation (16)^1/2 is 4
C=8π

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3 years ago

In ΔOPQ, m∠O = 107° and m∠P = 28°. Which statement about the sides of ΔOPQ must be true?

11Alexandr11 [23.1K]

Answer:

QO < OP < QP

Step-by-step explanation:

The third angle, angle Q, must measure 45° since angles in a triangle add to 180°.

So, OQ < OP < QP.

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2 years ago