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Answer 1

Answer:
This has a lot of scary words and numbers in it, but it's all just fluff.
That big ugly formula is nothing but numbers, except for the 'h' in it
near the end. When you write your altitude in place of 'h' and push
all the numbers through your calculator, the answer is the air pressure
at that altitude.

All it's asking you to do is this:

-- Write ' 100 ' into the big formula.

-- Run all the numbers through the calculator and get the pressure at 100 meters.

-- Then write ' 1000 ' into the formula.

-- Run the whole thing through the calculator again, and see what
the pressure is at 1,000 meters.

-- Subtract, and see how much the pressure changed between 100 meters
and 1,000 meters.

You want to know what I think the whole idea is here ? I think the whole idea
is to get you to decide which things to do first as you calculate the formula,
AND to give you practice in using your calculator to do weird stuff.

In the formula, I see a power, a set of parentheses, two multiplications, and
one subtraction. You have to decide what order to do them in. And THEN,
you have to figure out how to do them all with your calculator.

Here's the order:

-- Inside the parentheses, multiply 2.25577x 10⁻⁵ by 'h' .
-- Inside the parentheses, subtract the result from ' 1 '.
-- Take the number inside the parentheses, and raise it to the 5.25588 power.
-- Then multiply the result by 101,325 .

For 100 meters altitude, the pressure you should get is 100,129 pascals.

Make sure you can get that with your calculator when you put '100' in place
of 'h'. And then, when THAT works, do it with 1,000 in place of 'h'.

The number you get for 1,000 meters should be about 10,254 pascals less.

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Suppose that 30% of a population has dimples. You want to estimate the probability that it will take at least a sample of three to find one person with dimples. You set up a random digit simulation where 0, 1, 2 represents a person with dimples and 3, 4, 5, 6, 7, 8, 9 represents a person that does not have dimples. Which would constitute a trial for this simulation? A) two random digits B) three random digits C) eight random digits D) ten random digits
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Which function has the smallest x-intercept value, if it exists?

The measure of an angle is 70.1°. What is the measure of a complementary angle?

Answers

Since complementary angles are two angles that equal 90, you subtract 70.1 degrees from 90 degrees. This gives you an angle of 19.9 degrees, which is the complement to the 70.1 degrees angle.

Hope this helps.

Answer:

give the top answer brainiest ^

Step-by-step explanation:

Which compound inequality could this graph be the solution of?

Answers

Answer:

B. 2x + 3 ≥ 11 or 4x - 7 ≤ 1

Step-by-step explanation:

Given compound inequality,

In option A,

2x + 3 ≥ 11 and 4x - 7 ≤ 1

⇒ 2x ≥ 8 and 4x ≤ 8

⇒ x ≥ 4 and x ≤ 2

$\implies [4,\infty)\cap (-\infty, 2]$

$=\phi$

2x + 3 ≥ 11 and 4x - 7 ≤ 1 can not be the correct inequality,

In option B,

2x + 3 ≥ 11 or 4x - 7 ≤ 1

⇒ 2x ≥ 8 or 4x ≤ 8

⇒ x ≥ 4 or x ≤ 2

$\implies [4,\infty)\cup (-\infty, 2]$

Which is shown in the given graph,

Thus, 2x + 3 ≥ 11 or 4x - 7 ≤ 1 is the correct compound inequality,

In option C,

2x + 3 > 11 or 4x - 7 < 1

⇒ 2x > 8 or 4x < 8

⇒ x > 4 or x < 2

$\implies (4,\infty)\cup (-\infty, 2)$

So, which is not shown in the graph,

2x + 3 > 11 or 4x - 7 < 1 can not be the correct compound inequality,

In option D,

2x + 3 ≥ 11 or 4x - 7 ≥ 1

⇒ 2x ≥ 8 or 4x ≥ 8

⇒ x ≥ 4 or x ≥ 2

$\implies [4,\infty)$

Which is not shown in the graph,

2x + 3 ≥ 11 or 4x - 7 ≥ 1 is not the correct compound inequality.

B.. 4 is less than or equal to x, 2 is greater or equal to x

Find 1+ 2+ 3+ 4+ ... +50, the sum of the first 50 natural numbers.
The sum is

Answers

Step-by-step explanation:

First term(a) = 1

Common difference(d)=2-1=1

No.of term(n)=50

Sn=n÷2(n+1)=50÷2(50+1)=1275

I need help can someone help me please

Answers

Answer:

Step-by-step explanation:

"Congruent" here means that if you place a drawing of one angle on top of another and the two drawings match perfectly, you've got congruence.

The measure of one angle of an octagon is two times smaller that of the other seven angles. What is the measure of each angle?pls help the answer is (not 77 degrees and 144 degrees)