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ira [324]
3 years ago
6

What is change in elevation from 8,500 m to 3,400?

Mathematics
2 answers:
Anarel [89]3 years ago
6 0

Answer:

5,100M

Step-by-step explanation:

castortr0y [4]3 years ago
4 0

Answer:

5,100m

Step-by-step explanation:

To find the change of elevation subtract 3,400 from 8,500.

8,500 - 3,400 = 5,100

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In a large population, 76% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
serious [3.7K]

Answer:

0.017559

Step-by-step explanation:

Data provided:

Probability of Households Having cable TV, p₀ = 76% = 0.76

Therefore,

The probability that the Households not having cable TV = 1 - 0.76 = 0.24

Sample size, n = 225 households

sample proportions is less than 82% i.e p = 0.82

Now,

The standard error, SE = \sqrt{\frac{p_0(1-p_0)}{n}}

or

SE = \sqrt{\frac{0.76(1-0.76)}{225}}

or

SE = 0.02847

and,

Z=\frac{p-p_0}{SE}

or

Z=\frac{0.82-0.76}{0.02847}

or

Z = 2.107

therefore,

P(sample porportions < 0.82) = P(Z < 2.107)

now from the p value from the Z table

we get

P(sample porportions < 0.82) =  0.017559

6 0
3 years ago
How do you do 124.2 divided by 23
n200080 [17]
It's 5.4- I just used the calculator on my phone but I would've just done long division if I didn't have a calculator
4 0
3 years ago
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Point Ais a representation of which number on the number line?<br> 0<br> T<br> -3<br> 1
irinina [24]

Answer:

B = -3

Step-by-step explanation:

7 0
3 years ago
Use the fundamental identities and appropriate algebraic operations to simplify the following expression. (18 +tan x) (18-tan x)
andrezito [222]

Answer:

a) \left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)=325

b) The lowest point of y=\cos \left(x\right), 0\leq x\leq 2\pi is when x = \pi

Step-by-step explanation:

a) To simplify the expression \left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right) you must:

Apply Difference of Two Squares Formula: \left(a+b\right)\left(a-b\right)=a^2-b^2

a=18,\:b=\tan \left(x\right)

\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)=18^2-\tan ^2\left(x\right)=324-\tan ^2\left(x\right)

324-\tan ^2\left(x\right)+\sec ^2\left(x\right)

Apply the Pythagorean Identity 1+\tan ^2\left(x\right)=\sec ^2\left(x\right)

From the Pythagorean Identity, we know that 1=-\tan ^2\left(x\right)+\sec ^2\left(x\right)

Therefore,

324[-\tan ^2\left(x\right)+\sec ^2\left(x\right))]\\324[+1]\\325

b) According with the below graph, the lowest point of y=\cos \left(x\right), 0\leq x\leq 2\pi is when x = \pi

3 0
3 years ago
Simplify 4.2^-3 x 5.1^2 x 4.2^4 x 5.1^3
Stolb23 [73]

Answer:

14491.060542

Step-by-step explanation:

5 0
3 years ago
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