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3 years ago

5

World war 1 lasted from August 4th 1914 until November 11th,1918.During this time an estimated 10million lives were lost.About h

ow many people were dying per day?

1 answer:

quester [9]3 years ago

4 0

About 68,446 people were dying every day.

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Find where the lines go, the answer to the riddle is seven up every morning i just need to know where the lines go!!!! will give

postnew [5]

Answer:

Here’s what I got for this worksheet.

Step-by-step explanation:

6 0

3 years ago

Write the following in terms of sin Θ and cos Θ; then simplify if possible. (Leave your answer in terms of sin Θ and/or cos Θ.)

Marysya12 [62]

Answer:

6 cos Θ

Step-by-step explanation:

sin Θ cot Θ + 5 cos Θ =

= sin Θ × cos Θ / sin Θ + 5 cos Θ

= cos Θ + 5 cos Θ

= 6 cos Θ

3 0

3 years ago

X + 3y = 45<br><br> What is the value of X what is the value of y

Sonja [21]

There are multiple different answers to this question. One of them could be x=0 and y=15. Another is x=12 and y=11. There's no exact correct number

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4 years ago

Read 2 more answers

In Pennsylvania the average IQ score is 101.5. The variable is normally distributed, and the population standard deviation is 15

blsea [12.9K]

Answer:

We conclude that the Pennsylvania school district have an IQ higher than the average of 101.5

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 101.5

Sample mean, $\bar{x}$ = 106.4

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 15

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 101.5\\H_A: \mu > 101.5$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{106.4 - 101.5}{\frac{15}{\sqrt{30}} } = 1.789$

Now, $z_{critical} \text{ at 0.05 level of significance } = 1.96$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, we conclude that the Pennsylvania school district have an IQ higher than the average of 101.5

5 0

3 years ago

(4,4) (5,8)<br> Using distance formula

Vlada [557]

Answer:

Step-by-step explanation:

distance d= $d=\sqrt{(5-4)^2+(8-4)^2} =\sqrt{17}$

3 0

3 years ago