Ask question

Ask question

All categories

2 years ago

8

The average life expectancy in a certain country is 70.2 years. Estimate the country’s life expectancy in hours. Then use a calc

ulator to find the exact answer.
The average life expectancy for the country is approximately ____ hours

1 answer:

Debora [2.8K]2 years ago

8 0

I believe it is 614,952 hours

You might be interested in

10x+20=7x-8<br><br> Solve for x.

Kazeer [188]

Step-by-step explanation:

Isolate the variable

10x - 7x = -20 - 8

3x = -28

x = -9.333333333333

5 0

2 years ago

write an equation in slope intercept form for the line that passes through (4, -4) and is parallel to 3x+4x=2y-9

photoshop1234 [79]

Answer:

$\large\boxed{y=\dfrac{7}{2}x-18}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

Convert the equation of a line 3x + 4x = 2y - 9 to the slope-intercept form:

$3x+4x=2y-9$

$7x=2y-9$ <em>add 9 to both sides</em>

$7x+9=2y$ <em>divide both sides by 2</em>

$\dfrac{7}{2}x+\dfrac{9}{2}=y\to y=\dfrac{7}{2}x+\dfrac{9}{2}$

Parallel lines have the same slope. Therefore we have the equation:

$y=\dfrac{7}{2}x+b$

Put the coordinates of the point (4, -4) to the equation:

$-4=\dfrac{7}{2}(4)+b$

$-4=7(2)+b$

$-4=14+b$ <em>subtract 14 from both sides</em>

$-18=b\to b=-18$

Finally we have the equation:

$y=\dfrac{7}{2}x-18$

8 0

2 years ago

Tell me how you got the it

stich3 [128]

Answer:

x° = 67°

Step-by-step explanation:

1. The first three diagrams are showing you that opposite exterior angles are congruent. Based on that, when you are faced with opposite exterior angles in the fourth diagram, you are able to conclude they are congruent. That means x° = 67°.

2. You can determine the other angles in the figure based on linear angles being supplementary, and same-side interior angles being supplementary. After you work through all the angles, you find that x = 67.

6 0

2 years ago

What is the value of x?<br>6(-3 - 2) - 2x = 14<br>Enter your answer in the box

Kitty [74]

Answer:X=-4

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What is the quotient of (4x^3-3x^2+5x+6) divided by (x+6)

musickatia [10]

The answer is in the picture below I used the square rooting method hope this is the answer you need!

3 0

2 years ago