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3 years ago

7

The world record for the greatest temperature range recorded in one day occurred in Browning, Montana, in 1916. The temperature

fell from 44°F to –56°F. What was the temperature change that day?

1 answer:

balu736 [363]3 years ago

3 0

Answer:

The temperature dropped 100 degrees.

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Find the volume of a cylindrical container,whose height is 21cm and diameter is 14cm?

Lena [83]

Answer:

1029 $\pi$

Step-by-step explanation:

Volume= $\pi$ x $(radius)^{2}$ x height = $\pi$ x $7^{2}$ x 21 = 1029 $\pi$

I hope it helps you!

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Assume that a randomly selected subject is given a bone density test. those test scores are normally distributed with a mean of

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The randomly selected subject is given bone density test which are normally distributed with mean =0 and standard deviation =1. It means bone density test score is standard normal variable.

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P(z < 2.23)

Using z score table to find probability below z=2.23

P(z < 2.23) = 0.9871

The probability that a given score is less than 2.23 is 0.9871

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3 years ago

Complete the paragraph proof.

Anvisha [2.4K]

Answer:

(a) 180°

(b) 180°

(c) substitution property

(d) m∠3

(e) ∠3

Step-by-step explanation:

Definition: Two angles are supplementary if they add up to 180°

Proof:

By definition of supplementary angles, m∠1 + m∠2 = 180° (a) {∠1 and ∠2 are supplementary - given}

and m∠2 + m∠3 = 180° (b) {∠2 and ∠3 are supplementary - given}

Then, m∠1 + m∠2 = m∠2 + m∠3 by the substitution property (c)

Subtract m∠2 from each side. You get m∠1 = m∠3 (d)

or ∠1 ≅ ∠3 (e)

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4 years ago

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Simplify the radical expression 4 square root 81x^20y^8

Dimas [21]

The simplified expression is $3x^5 y^2$

Step-by-step explanation:

The radical expression to simplify is

$\sqrt[4]{81x^{20}y^8}$

We notice the following:

$81=3^4$

And using the property

$(x^a)^b=x^{a\cdot b}$

we can write:

$x^{20}=(x^5)^4$

$y^8 = (y^2)^4$

So the argument of the radical can be written as

$\sqrt[4]{(3)^4(x^5)^4(y^2)^4} =\sqrt[4]{(3x^5y^2)^4}$

And now by using the property

$\sqrt[n]{a^n}=a$

We find:

$\sqrt[4]{(3x^5y^2)^4}=3x^5 y^2$

Learn more about simplification of expressions:

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3 years ago

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Ghella [55]

Answer:

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C: C; Once again physicality and placement indicate the alignment of the two and both of them are 90 degrees

Step-by-step explanation:

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