Look at the function and find parts A and B please

Answer:

82%

Step-by-step explanation:

0.82x100=82

=82%

Hope this helps

Answer:

B. 82%

Step-by-step explanation:

.82 can also be written as 82/100 and 82/100 can be turned into 82% because they are all based on 100

Answer:

\(log(9^2) = 2\ log(9)\)

Step-by-step explanation:

Given

\(log(9^2)\)

Required

Select an equivalent expression

To answer this, we apply the following law of logarithm.

\(log(a^b) = b\ log(a)\)

So:

\(log(9^2) = 2 * log(9)\)

\(log(9^2) = 2\ log(9)\)

Hence:

The equivalent expression is (a). \(2\ log(9)\)

Answer:

A, C and D

Step-by-step explanation:

Given

\(\frac{3}{5}a + 10\)

Required

Select 3 equivalent expressions

\(\frac{3}{5}a + 10\)

Express 3 as 2 + 1

\(\frac{2 + 1}{5}a + 10\)

Rewrite as:

\(\frac{2a + a}{5} + 10\)

Split

\(\frac{2a}{5} + \frac{a}{5} + 10\) ----- Option (A)

\(\frac{3}{5}a + 10\)

Express 10 as 14 - 4

\(\frac{3}{5}a + 14 - 4\)

Rewrite as:

\(14+\frac{3}{5}a - 4\) --- Option (C)

\(\frac{3}{5}a + 10\)

Factor out 1/5

\(\frac{1}{5}(3a + 50)\) --- Option D

Answer:

Option D

Step-by-step explanation:

You can give the guy/girl above Brainliest ^^

They rlly went out of their way to answer that question for you.

They deserve it!

The probability that four batteries connected in series will have a combined voltage of 60.8 or more volts is approximately 0.0228 or 2.28%.

To find the probability that four batteries connected in series will have a combined voltage of 60.8 or more volts, we need to use the concept of the Central Limit Theorem.

In this case, we know that the mean voltage of a single battery is 15 volts and the standard deviation is 0.2 volts. When batteries are connected in series, their voltages add up.

The combined voltage of four batteries connected in series is the sum of their individual voltages. The mean of the combined voltage will be 4 times the mean of a single battery, which is 4 * 15 = 60 volts.

The standard deviation of the combined voltage will be the square root of the sum of the variances of the individual batteries. Since the batteries are connected in series, the variance of the combined voltage will be 4 times the variance of a single battery, which is 4 * (0.2)^2 = 0.16.

Now, we need to calculate the probability that the combined voltage of four batteries is 60.8 or more volts. We can use a standard normal distribution to calculate this probability.

First, we need to standardize the value of 60.8 using the formula:

Z = (X - μ) / σ

Where X is the value we want to standardize, μ is the mean, and σ is the standard deviation.

In this case, the standardized value is:

Z = (60.8 - 60) / sqrt(0.16)

Z = 0.8 / 0.4

Z = 2

Next, we can use a standard normal distribution table or calculator to find the probability associated with a Z-score of 2. The probability of obtaining a Z-score of 2 or more is approximately 0.0228.

Therefore, the probability that four batteries connected in series will have a combined voltage of 60.8 or more volts is approximately 0.0228 or 2.28%.

Learn more about probability here:

https://brainly.com/question/23417919

#SPJ8

Answer:

the answer is 0

Step-by-step explanation:

Step-by-step explanation:

\(b = k + \frac{l}{m} \\ b - k = \frac{l}{m} \\ m = \frac{l}{b - k} \\ thank \: you\)

Answer:

\( 7\frac{5}{12} + 3\frac{7}{12} \\ \frac{14}{3} \\ 4.666\)

Answer:

\( \\ 7\frac{5}{12} + 3 \frac{7}{12} \)

\( \\ = \frac{89}{12} + \frac{43}{12} \)

\( \\ = \frac{132}{12} \)

\( \\ = 11\)

Answer:

A sample of 796 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which

z is the zscore that has a pvalue of \(1 - \frac{\alpha}{2}\).

The margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In this question, we have that:

\(\pi = 0.53\)

91% confidence level

So \(\alpha = 0.09\), z is the value of Z that has a pvalue of \(1 - \frac{0.09}{2} = 0.955\), so \(Z = 1.695\).

How large should a sample be if the margin of error is .03 for a 91% confidence interval

We need a sample of n, which is found when \(M = 0.03\). So

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

\(0.03 = 1.695\sqrt{\frac{0.53*0.47}{n}}\)

\(0.03\sqrt{n} = 1.695\sqrt{0.53*0.47}\)

\(\sqrt{n} = \frac{1.695\sqrt{0.53*0.47}}{0.03}\)

\((\sqrt{n})^2 = (\frac{1.695\sqrt{0.53*0.47}}{0.03})^{2}\)

\(n = 795.2\)

Rounding up

A sample of 796 is needed.

Answer:

y=-23/6

Step-by-step explanation:

Answer:

y=-26

Step-by-step explanation:

multiply each side by 3

Y+1/2-2y-3=12

Multiply each side by 2

Y+1-2y-3=24

Add 3 to each side

Y+1-2y=27

Subtract each side by 1

Y-2y=26

-y=26

Multiply each side by -1

Y=-26

Answer:

-222

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

He makes 50 by the pens, and the pencils, but he loses 20 because he loses 2 each time he sells a pencil

Answer:

a 0, 16, 64,144 graph A edge

Step-by-step explanation:

The graph that best represents the equation is option A.

What is an Equation?

An equation is a mathematical statement that is formed when two algebraic expressions are equated using an equal sign.

The equation is

s = 16t²

The table is

s              t

0             16*0 = 0

1              16 * 1 = 16            

2              16 * 4 = 64

3               16 * 8 = 108

The points represents a parabola opening upwards, vertex is at (0,0) and goes through the point (-1,16)

This has been confirmed by the graph plotted for the equation.

To know more about Equation

https://brainly.com/question/10413253

#SPJ2

Answer:

= 60 miles / hour

Step-by-step explanation:

We first convert the time of 4 hours 41 minutes in minutes

4 hours 41 minutes = 4 × 60 + 41 = 281 minutes

Average speed S is given by distance / time. Hence

S = 281 miles / 281 minutes = 1 mile / minute

= 60 miles / hour

Total distance=281mi

Total time=4.7h

\(\\ \tt\hookrightarrow Avg\:Speed=\dfrac{Total\: distance}{Total\:time}\)

\(\\ \tt\hookrightarrow Avg\:Speed=\dfrac{281}{4.7}\)

\(\\ \tt\hookrightarrow Avg\:Speed=59.78mph\)

Answer:

1.

Step-by-step explanation:

Answer:

Step-by-step explanation:

0.033

Answer:

depends on how long u need it for

Step-by-step explanation:

Answer:

-56

Step-by-step explanation:

Equation = 7x( 3 + x/4)

f(x) = 7x( 3 + x/4)

f(-8) = 7( -8 )( 3+ -8/4 )

f(-8) = -56 ( 3+ ( - 2 ))

f(-8) = -56( 1 )

f(-8) = -56

-Chetan K

Answer:$73.12

Step-by-step explanation:

9.75 multiply by 7.5 then you will get $73.12

I don't really know if it correct but if it is then hope this helps.

Answer:

i believe your answer would be 5 and 3, FD

Step-by-step explanation:

Answer:

- How does their confidence level compare to the confidence level of the interval stated above?

Provided all the other parameters involved in the determination of margin of error remains constant, the confidence level of the interval obtained by the second set of researchers (with a larger margin of error) is definitely greater than the confidence of the first stated interval.

- How will the margin of error of the 95% confidence interval constructed based on data from the new survey compare to the margin of error of the interval stated above?

Provided all the other parameters involved in the determination of margin of error remains constant, the margin of error of the confidence interval of data from the new survey will be less than the margin of error of the initially stated interval because the margin of error is inversely proportional to the sample size and the sample size of the new survey (2500) is more than the sample size of the old survey (1155).

Step-by-step explanation:

Confidence Interval for the population mean is basically an interval of range of values where the true population mean can be found with a certain level of confidence.

Mathematically,

Confidence Interval = (Sample mean) ± (Margin of error)

Margin of Error is the width of the confidence interval about the mean.

It is given mathematically as,

Margin of Error = (Critical value) × (standard Error of the mean)

Since the sample sizes are so large, the critical value for this would be obtained from the z-distribution tables.

And critical value increases with higher confidence level.

Which directly translates to margin of error increasing with higher confidence level.

A) Hence, if all other parameters stay the same, the margin of error can only be larger if the confidence level of the second researchers is more than than the confidence level at which the initial research was carried out.

B) In the determination of the margin of error

Margin of Error = (Critical value) × (standard Error of the mean)

Standard error of the mean = σₓ = (σ/√n)

where σ = population standard deviation or sample standard deviation for a sample size that's very large

n = sample size

If the critical value stays the same (the tests in the two years being considered are performed at the same level) and the standard deviation too remain almost the same (the question asks us to assume that the population characteristics, with respect to how much time people spend relaxing after work, have not changed much within a year), the margin of error is obviously inversely proportional to the sample size.

Margin of error = (zσ/√n)

zσ = constant = k

Margin of error = (k/√n)

So, if the sample size increases, the new margin of error that will be obtained will be lesser.

Hope this Helps!!!

If rena divides a square into 8 equal part then 1/8 is a unit fraction which she has to write as a label for each parts.

A fraction represents a part of a whole.

Given that rena divides a square into 8 equal part.

A division is a process of splitting a specific amount into equal parts.

Let the whole square is divided into eight equal parts.

Which can be represented by 1/8.

Where the numerator 1 represents the whole and eight represents the parts.

The unit fraction for each part is 1/8 because the square is divided into 8 equal parts.

This means each part is one eighth of the whole.

Hence, if rena divides a square into 8 equal part then 1/8 is a unit fraction which she has to write as a label for each parts.

To learn more on Fractions click:

https://brainly.com/question/10354322

#SPJ2

Having a scale of 0.25 in = 4 feet means that every 0.25 inches in the model represent 4 feet in the real room. Using this knowledge and the length and width of the actual room we can find the values we need to build the model.

Let's start with the room's length using the rule of three:

4 feet----------0.25 inches

20 feet---------x

According to the rule of three x is given by:

If we make the same process for the model's width:

4 feet----------0.25 inches

12 feet---------w

So for the model we have that x=1.25 inches and w=0.75 inches

A function is defined as a relation between a set of inputs, each with an output. The sketch of the function f(x,y) = 9 - 9x² - y² is given below.

f(x,y) = 9 - 9x² - y²

Let the given function is equal to 0, Then

           9 - 9x² - y² = 0

                         y²  = 9 - 9x²

The function can be written as

                          y²  = 9 - 9x²

A function is a relationship between inputs, each associated with exactly one output. Each function has a domain and a codomain or scope. Functions are commonly denoted by f(x). x is the input. Here's the technical definition of the function:

A relationship from a set of inputs to a set of possible outputs.

Learn more about the function in

https://brainly.com/question/12431044

#SPJ4

Answer:

The smaller number in 0.01

Step-by-step explanation:

To find this answer, just take the fraction and find the quotient of both numbers.

1.789/178 = 0.01005056179

Now take the quotient and compare it to 0.05.

Is 0.01 larger or 0.05 - the answer is 0.01.

The cruise ship will travel approximately 15 nautical miles in 345 minutes.

Use a proportion to solve this problem. Let "d" be the number of nautical miles the cruise ship will travel in 345 minutes. Then:

19 nautical miles / 437 minutes = d nautical miles / 345 minutes

To solve for "d", cross-multiply:

19 nautical miles x 345 minutes = d nautical miles x 437 minutes

Then, divide both sides by 437 minutes to isolate "d":

d nautical miles = (19 nautical miles x 345 minutes) / 437 minutes

Simplifying this expression, we get:

d nautical miles = 15 nautical miles (rounded to the nearest whole number)

Therefore, the cruise ship will travel approximately 15 nautical miles in 345 minutes.

learn more about nautical miles: https://brainly.com/question/17038309

#SPJ1

Answer: y = (x - 1)² - 3

Step-by-step explanation:

y = (1-1)²-3
y=0-3
y=-3

The ratio of the volume of the cylinder to the volume of the sphere = 3:1

Let take the volume of a closed cylinder as V1.

And take the volume of a closed sphere as V2.

And the radius of the cylinder = radius of the sphere = r

Height of the cylinder = h

If height of the cylinder is four times the radius of the cylinder  which means h = 4r

Volume of the closed cylinder V1 = π × r^2 × h

if h = 4r

Then V1 = π × r × r × 4r

V1= 4π × r^3

Volume of the closed cylinder V1= 4π × r^3

Volume oh the sphere V2 = 4/3 × π × r^3

The ratio of the volume of the cylinder to the volume of the sphere

= V1 / V2 = V1 : V2

V1 : V2 = (4π × r^3) ÷ (4/3 × π × r^3)

V1 : V2 = 4 ÷ 4/3 = 4/1 × 3/4 = 3/1 = 3 : 1

The ratio of the volume of the cylinder to the volume of the sphere = 3:1

To know more about volume of the cylinder here.

https://brainly.com/question/13648057

#SPJ1

Answer:

I slightly rounded my answers so to the nearest hundred.

Your bill is 19.65

Their bill is 18.02

Step-by-step explanation:

Step-by-step explanation:

A and C are parallel. equations G and E.

B and D are perpendicular (standing at a right angle = 90° to each other). equations F and H.

parallel means that both lines have the same slope.

the slope is the factor a of x when the equations look like

y = ax + b (slope-intercept form)

or

y - y1 = a(x - x1) (point-slope form)

"a" being the slope, b being the y-intercept (the y- value when x = 0), (x1. y1) being a point on the line.

the slope is specified as ratio (y coordinate difference / x coordinate difference) when going from one point to another.

the perpendicular slope to y/x is the upside down ratio and the sign is flipped.

e.g. the perpendicular slope to 5/4 is -4/5.

equation E is already in point-slope form.

the slope is 2/3, and the point (-9, -2) must be on the line.

only one line goes through the point (-9, -2) : C.

equation H is already in slope-intercept form.

the slope is 3/2, and the y-intercept is 5, meaning the line goes through the point (0, 5).

only one line goes through that point : D

equation F

2x + 3y = -21

3y = -2x -21

y = (-2/3)×x - 7

the slope is -2/3, which is perpendicular to 3/2 (equation H).

the y-intercept is -7, meaning the line goes through the point (0, -7).

only one line goes through that point : B

equation G

-2x + 3y = -6

3y = 2x - 6

y = (2/3)×x - 2

the slope is 2/3 (parallel to equation E).

the y-intercept is -2, meaning the line goes through the point (0, -2).

only one line goes through that point : A