3 years ago

What was the approximate increase in diameter of chest circumference during a quiet inspiration?

1 answer:

6 0

Forced inspiration is the procedure in which you compel the muscles to help the essential muscle this can be, in a ton of cases, profound relaxing. The measure of increment amid constrained motivation relies on upon the general size of the trunk. In any case, the normal is around six to seven centimeters.

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Which point is a reflection of (12, −8) across the y-axis on a coordinate plane? A (8, 12) B (−8, 12) C (−12, −8) D (12, 8)

ladessa [460]

Answer:

option A

Step-by-step explanation:

thats the answer!!!

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2 years ago

The product of 5 and the sum of 12 and a certain number is 10. What is the number 4

erik [133]

Answer:

-10

Step-by-step explanation:

let the number=x

5(x+12)=10

x+12=10/5=2

x=2-12=-10

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3 years ago

Evaluate for this problem <br> Help!!!

RoseWind [281]

${a}^{2} - b + 2c$
${5}^{2} - 17 + 2 \times 2$
$25 - 17 + 4$
PEMDAS
$25 - 21$
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3 years ago

Jane can complete a sales route by herself in 4 hours. Dave can do the same job in 7 hours. How long will it take them to do it

Nataliya [291]

T/4+t/7=1
28(t/4+t/7)=1
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3 years ago

According to astronomers, what is a "light year" answer key

liberstina [14]

A light-year is defined as the distance the light can cover in one year.

The light travels at speed of $c=3 \cdot 10^8 m/s$ , and one year converted into seconds is
$1 y = 365 \frac{d}{y} \cdot 24 \frac{h}{d} \cdot 60 \frac{m}{h} \cdot 60 \frac{s}{m}=3.15 \cdot 10^7 s$

So the distance covered by the light in one year is
$S=vt =(3 \cdot 10^8 m/s)(3.15 \cdot 10^7 s)=9.45 \cdot 10^{15} m$
And this is the distance that corresponds to one light-year.

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3 years ago