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4 years ago

13

Knowing the causes of respiratory system diseases, what are

1 answer:

Kamila [148]4 years ago

8 0

Cover your cough
Wash your hands
Keep a clean space
Avoid smoking
Stay active

Hope this helps :)

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Rebecca jogs in place for two minutes before her track meet. Rebecca weighs 100 pounds. Which of the following statements is tru

MrRissso [65]

The answer is A because it was 2 minutes and she weighs 100 lbs.... so 2(100)=200.... 200 lbs of work

7 0

3 years ago

Read 2 more answers

Different between accurate and procession measurements

Alinara [238K]

Explanation:

In other words, accuracy describes the difference between the measurement and the part's actual value, while precision describes the variation you see when you measure the same part repeatedly with the same device.

4 0

3 years ago

Given the function f(x) = 8x3 − 3x2 − 5x 8, what part of the function indicates that the left and right ends point in opposite d

ale4655 [162]

Answer: The degree of the first term.

Explanation:

The function:

$f(x) = 8x^3-3x^2-5x^8$

The left and right ends would be indicated when x is changed to -x. When this is substituted, the change is indicated by the first term because only the degree of first term is odd.

Let the left hand side be donated by -x.

Then,

$f(-x) =8(-x)^3-3(-x)^2-5(-x)^8\\ \Rightarrow f(-x)=-8x^3-3x^2-5x^8$

Hence, the correct option is the degree of the first term indicates the left and right end points of the function.

8 0

4 years ago

Read 2 more answers

What makes electromagnets useful for sorting metals in recycling centers?

sdas [7]

It’s c sorry if i’m wrong

4 0

3 years ago

Read 2 more answers

the two ropes are used to vertically lower a 255 kg piano from exactly 4 m form a seocnd sotry window to the ground how much wor

Ilya [14]

Complete Question

The Question diagram is attached below

Answer:

a) $W_{Fg}= 12500 Nm$

b) $W_{T_1}= - 6339.3Nm$

c) $W_{T_2}= - 3662.8Nm$

Explanation:

From the question we are told that:

Mass $m=255kg$

Distance $d=4m$

Generally the equation for Work done is mathematically given by

$W=F*d$

For $F_g$

$W_{Fg}=2500 x 5.3$

$W_{Fg}= 12500 Nm$

For $T_1$

$W_{T_1}= - {1830 sin(60) x 4}$

$W_{T_1}= - 6339.3Nm$

For $T_2$

$W_{T_2}= - {1295 sin(45) x 4}$

$W_{T_2}= - 3662.8Nm$

6 0

3 years ago