Solve for x in the equation x² + 2x +1 = 17

When Sanchez left his house this morning, his cell phone was 30% charged and it then started to lose 3% charge for each hour the

Radda [10]

Answer:

The equation that represents the battery charge in Sanchez's phone as a percentage t hours after he left his house is B(t) = 30 - 3*t.

Step-by-step explanation:

The initial state of the battery on Sanchez's phone is 30% so in time t equals zero the battery should be at that value and as time progresses the battery should lose battery charge at a rate of 3% for each hour. We can write this in an equation form by taking the initial state and subtract it by the rate multiplied by the value of time. We have:

B(t) = 30 - 3*t

The equation that represents the battery charge in Sanchez's phone as a percentage t hours after he left his house is B(t) = 30 - 3*t.

3 0

3 years ago

The amount of a radioactive isotope decays in half every year. The amount of the isotope can be modeled by f(x) = 346(one half)x

Leno4ka [110]

It means the first iteration of decay would be 1/2 of 346, which is 173

8 0

3 years ago

A supervisor finds the mean number of miles that the employees in a department live from work. he finds x overbar = 29 and s = 3

V125BC [204]

A supervisor finds the mean number of miles that the employees in a department live from work is 24. Then the correct option is B.

<h3>What is a z-score?</h3>

The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.

The z-score is given as

$z = \dfrac{x-\mu }{s}\\$

x = 29

s = 3.6

z = 1.5

Then the mean will be

$1.5 = \dfrac{29 - \mu }{3.6}\\\\\mu = 29 - 5.4\\\\\mu = 23.6 \approx 24$

More about the z-score link is given below.

brainly.com/question/15016913

7 0

2 years ago

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If f(x) = x2 and g(x) = x + 6, find g(f(0)).

Pachacha [2.7K]

Hi friend,

f(x) = x²
g(x) = x+6

f(0) = 0² =0

g ( f(0) ) = f(0) +6
= 0+6 = 6

Hope this helps you!

7 0

3 years ago

Draw your own rectangle, with an area of 24 square units, on the coordinate plane. Then, identify the vertices of your rectangle

Gnoma [55]

Answer:

First you should remember that the formula for calculating area of a rectangle is;

Area=Length × width

You can decide to have a rectangle with different dimensions provided the area is 24 square unit

For this case, lets choose a rectangle with vertices at (1,0), (7,0),(1,4), (7,4)

After plotting these coordinates, you will notice your rectangle has a length of 6 units and a width of 4 units

A single unit is 1 square unit.When you Count the number of units inside the rectangle formed you realize you have 24 units covered inside

The area of the 24 units will be;

24×1 square unit= 24 square units

6 0

2 years ago

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