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3 years ago

This is the last question i need help on! i will mark brainlessttt :)thanks

Mathematics

1 answer:

Mandarinka [93]3 years ago

3 0

Answer:

A.3

Step-by-step explanation:

Since the lines are parallel that angle is 90 same as the other. So you plug in all your answers to see with one gives you 90 that being 3 because 30(3)=90.

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6+ 9х2 + 32 - 410 - 95 - 5<br> ОА. 10<br> ОВ. 9<br> Ос. 4<br> OD. 6

Nookie1986 [14]

Answer:

D its really basic math you can also just do it in a calculator lel

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2 years ago

. A hat contains 100 coins, where 99 are fair but one is double-headed (always landing Heads). A coin is chosen uniformly at ran

SOVA2 [1]

Answer:0.565

Step-by-step explanation:

Hat contain 100 coins out of which 99 is fair and one is double headed.

Probability of getting 7 heads is sum of Head through fair coin+heads through biased coin

Probability of getting a head through a fair coin=0.5

$P(7 heads)=0.99\times 0.5^7+0.01\times 1$

$P(Double head |7 heads )=\frac{Probability\ of\ 7\ heads\ and\ double\ headed}{probability\ of\ 7\ heads}$

$P(Double head |7 heads )=\frac{0.01\times 1}{0.99\times 0.5^7+0.01\times 1}$

$=\frac{0.01}{0.99\times 0.0078+0.01}=0.565$

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2 years ago

What is the number between 40 and 45

LiRa [457]

43 is between the 40 and 45

7 0

2 years ago

Read 2 more answers

Suppose a classroom teacher wants to measure whether offering candy as a reward will increase the number of times that a student

ahrayia [7]

Answer:

C) Matched pairs

Step-by-step explanation:

Matched samples (also called matched pairs, paired samples or dependent samples) is a type of sampling that involves pairing participants that share every characteristic except for the one under study. The paired participants could be same individuals studied at different time such as:

The study of same participants before and after an interference.
The study of the same participants at two different interference.

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2 years ago

How long is the diagonal of a square with a side of 8cm?

Alekssandra [29.7K]

Answer:

11.314

Step-by-step explanation:

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2 years ago