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3 years ago

How much longer will hair grow than fingernails in 6 months?

Mathematics

1 answer:

luda_lava [24]3 years ago

6 0

Wow good question .....

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The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?

svet-max [94.6K]

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

$V(t) = V(0)(1-r)^{t}$

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

The value of a certain car decreases by 16% each year.

This means that $r = 0.16$

$V(t) = V(0)(1-r)^{t}$

$V(t) = V(0)(1-0.16)^{t}$

$V(t) = V(0)(0.84)^{t}$

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

$V(t) = V(0)(0.84)^{t}$

$0.5V(0) = V(0)(0.84)^{t}$

$(0.84)^{t} = 0.5$

$\log{(0.84)^{t}} = \log{0.5}$

$t\log{0.84} = \log{0.5}$

$t = \frac{\log{0.5}}{\log{0.84}}$

$t = 3.98$

The half life of the car is 3.98 years.

7 0

3 years ago

On Friday a bowling alley made $842.72 from Lane rentals in $412.38 from the concession stand.

Neko [114]

Answer:

Step-by-step explanation:

8 0

3 years ago

Miguel plots points A, B, and C in the coordinate plane.

serg [7]

Answer:

part a: 5

part b: no, ABC is not an equilateral triangle

Step-by-step explanation:

part a: if you do the distance formula for points A and B, you get 5

part b: using the distance formula again, points A to B and points A to C are both 5, but points B to C is 6, therefore it's not equilateral because all the sides have to be the same length

6 0

2 years ago

The sum of 5x and 2x is a least 70

diamong [38]

Answer:

7x ≥ 70

Step-by-step explanation:

5x + 2x ≥ 70

7x ≥ 70

x ≥ 10

Hope this helps!

-sruthi123

5 0

4 years ago

Simplify Exponents (X^3)^5

lbvjy [14]

Answer:

x ^15

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers