This is due in ten mins help plz

Answer:

8

Step-by-step explanation:

3y - 2y + 3 - y + 5

y + 3 - y + 5

3 + 5

8

hope this helps :]

Answer:

8

Step-by-step explanation:

3y - 2y + 3 - y + 5

(3y - 2y - y) + (3 + 5)

0 + 8

8

Hope this helps!

Answer:

2

Step-by-step explanation:

You have to undo in reverse order- subtraction and addition first, division and multiplication second, then exponents, and finally, parentheses.

Here's the work shown-

7a + 5 (-5) = 19 (-5)

7a/7 = 14/7

a = 2

Answer:

a=2

Step-by-step explanation:

You have to subtract 5 from 19 to get 14.

Then, you get:

7a=14

a=2

Answer:

Square root of 208

Step-by-step explanation:

4 square of 13 = square 16 X square 13

= square 16 X 13

= 208

Answer:

It will take Eric 10 weeks to save £1200

Step-by-step explanation:

He makes £14 per hour, since he works for 38 hours per week,

That means that he makes (14)(38) = £532 per week

Since he saves 1/4 of his earnings, that gives us,

Savings per week = (1/4)(weekly earnings)

Savings per week = 1/4(532)

Savings per week = £133 (per week)

Now, we need to find the number of weeks till he saves £1200,

we have,

Total savings = (number of weeks)(Savings per week)

let n = number of weeks,

Total savings = n(Savings per week)

so,

1200 = n(133)

n = 1200/133

n = 9.0225

Now, since he will have less than 1200 in 9 weeks (the number is greater than 9 i.e 9.0225 > 9)

So, we round up to 10,

Hence it will take Eric 10 weeks to save £1200

The formula to calculate the standard deviation (σ) of a binomial distribution is σ = √[n * p * (1 - p)] where n is the number of trials and p is the probability of success in each trial.

Substituting the given values, we get:

σ = √[10 * 0.70 * (1 - 0.70)]

σ = √[10 * 0.70 * 0.30]

σ = √2.1

σ ≈ 1.45

Therefore, the standard deviation of the binomial distribution with n = 10 and p = 0.70 is approximately 1.45.

Hence, the answer is 1.45.

To learn more about “probability” refer to the https://brainly.com/question/13604758

#SPJ11

Let the unit price for pencil be x

Let the unit price for pack be y

If the students bought 3 packs of pencil and 2 packs of pen for $8.25, then;

\(2x+3y=8.25.... 1\)

Similarly;

If her friend bought 5 packs of pencil and 2 packs of pen for $11, then ;

\(5x+2y=11 .... 2\)

We will have to solve both equations simultaneously as shown;

\(2x+3y=8.25... 1...*5 \\5x+2y=11 ... 2 ... *2 \\\)

---------------------------------------------------------------------------------------------------------------------------------------------------------

\(10x+15y=41.25\\10x=4y=22 \\\)

Subtract the resulting equations;

\(15y-4y=41.25-22\\11y=19.25\\y=19.25/11\\y= $ 1.75 \\\)

Hence 1 pack of pen costs %1.75

To get x, you will substitute y= 1.75 into equation 2;

\(2;5x+2y=11\\5x+2(1.75)=11\\5x+3.5=11\\5x=11-3.5\\5x=7.5\\x=\frac{7.5}{5} \\x=1.5\)

Hence 1 pack of pencil will cost costs $1.5

From the above solution, we can conclude that there are enough information to find the cost of each pack of pen and pencil.

PLEASE MARK ME AS BRAINLIEST

Let the unit price for pencil be x

Let the unit price for pack be y

If the students bought 3 packs of pencil and 2 packs of pen for $8.25, then;

Similarly;

If her friend bought 5 packs of pencil and 2 packs of pen for $11, then ;

We will have to solve both equations simultaneously as shown;

---------------------------------------------------------------------------------------------------------------------------------------------------------

Subtract the resulting equations;

Hence 1 pack of pen costs %1.75

To get x, you will substitute y= 1.75 into equation 2;

Hence 1 pack of pencil will cost costs $1.5

From the above solution, we can conclude that there are enough information to find the cost of each pack of pen and pencil.

Answer:

285pound

Step-by-step explanation:

Volume of the container = length * width * height

                                        = 13 * 9 * 4

                                        = 468 cubic feet

Weight of the contents in the container = 468 * 0.61 = 285.48 = 285pound

True. The central limit theorem states that if the sample size n is large enough (usually considered to be at least 30), then the sampling distribution of the mean will be approximately normal, regardless of the shape of the population distribution.

The sampling distribution of the mean can be approximated by the normal distribution if the sample size (n) is at least 30. This statement is based on the Central Limit Theorem, which states that the sampling distribution of the mean of a random sample drawn from any population will approach a normal distribution as the sample size increases, regardless of the shape of the population distribution. A sample size of 30 is often considered the threshold for approximating a normal distribution in such cases.

Learn more about distribution here,

https://brainly.com/question/31512921

#SPJ4

Answer: 4.08 units

Step-by-step explanation: The length of an arc depends on the radius of a circle and the central angle θ. We know that for the angle equal to 360 degrees (2π), the arc length is equal to circumference. Hence, as the proportion between angle and arc length is constant, we can say that:L / θ = C / 2πAs circumference C = 2πr,L / θ = 2πr / 2πL / θ = rWe find out the arc length formula when multiplying this equation by θ:L = r * θHence, the arc length is equal to radius multiplied by the central angle (in radians).

Soo, 13(3.14)/10•3= 4.08 to the nearest hundredth :)

Hope it’s not to late for u :)

Answer:

45:40

27:24

Step-by-step explanation:

45:40 c=5

27:24 c=3

The table that shows the probability distribution when one card from each stack is drawn is Table 3.

There are a total of 4 × 5 = 20 possible outcomes when one card is drawn from each stack. We can list all the possible outcomes:

Blue-blue

Blue-purple

Blue-green

Blue-purple

Blue-orange

Green-blue

Green-purple

Green-green

Green-purple

Green-orange

Red-blue

Red-purple

Red-green

Red-purple

Red-orange

Orange-blue

Orange-purple

Orange-green

Orange-purple

Orange-orange

Out of these 20 outcomes, there are 4 outcomes where the two cards match in color (blue-blue, green-green, purple-purple, and orange-orange).

Therefore, the probability distribution when one card from each stack is drawn is:

P(matching color) = 4/20

P(different colors) = 16/20

Learn more about probability distribution at: https://brainly.com/question/28021875

#SPJ1

Answer:

Step-by-step explanation:

Use a grid to show the sample space.

              blue  green red orange

blue   BB BG BR BO

purple PB PG PR PO

green GB GG GR GO

purple PB PG PR PO

orange OB OG OR 00

There are 20 possible outcomes. The probability of each color combination is the number of times that combination occurs in the grid divided by 20. Find the probability of each combination and list the probabilities in a table to show the probability distribution.

outcome   BB BG BR BO PB PG PR PO GG GR GO OR OO

probability 1 1 1 1 1 1 1 1 1 1 1 1 1

                 20 10 20 10 10 10 10 10 20 20 10 20 20

Answer:

the first one equals 4. the second one equals 2

Step-by-step explanation:

mark me brainliest pls

Answer: Forgot to divide at the end

Step-by-step explanation:

To figure out your friend's error, solve the equation yourself.

When we do this, we realize adding 3 would make it 33. This shows that the friend likely forgot to divide by 25 to completely isolate x, and stopped at that step.

Answer:

\(\frac{16}{3\\}\)

Step-by-step explanation:

\(-8(\frac{-2}{3})\)

\(= (\frac{-8}{1}) (\frac{-2}{3})\)

\(=\frac{(-8)(-2)}{(1)(3)}\)

\(=\frac{16}{3}\)

Answer: 83 maybe

Step-by-step explanation:

Larry=38

John= 19( half of 38 is 19)

Michael= 26( 19+7= 26)

Hope this is correct and helps!!

An exponential function to model the quail population is y = 765(1+0.16)ⁿ and the approximate population be after 4 years is 1384.65 quails.

Population growth is seen to increase at an exponential rate. We use the following to model this growth.

y = A₀(1 + r)ⁿ

where

y = value at time

A₀ = original value

r = rate of growth

n = time elapsed

An exponential function that models the quail population is set up like:

y = 765(1+0.16)ⁿ

so that, for example, if we wanted to figure out the population at time (4 years), then we would set up the function as follows,

y = 765(1+0.16)⁴

y = 765(1.16)⁴

y = 765* 1.81

to get

y = 1384.65 quails after 4 year has elapsed.

Hence, an exponential function to model the quail population is y = 765(1+0.16)ⁿ and the approximate population be after 4 years is 1384.65 quails.

To know more about exponential check the below link:

https://brainly.com/question/2456547

#SPJ4

Answer:

yes it is a function there is no graph so I cant justify it

The relation is not a function.

Relations that are functions will pass the vertical line test

The points are given as:

(0,0), (2,0), (2,2), and (3,4)

Next, we plot the points on the graph (see attachment).

From the graph, we can see that a vertical line passes through points (2,0) and (2,2).

Hence, the relation is not a function.

Read more about functions and relations at:

https://brainly.com/question/2253924

Answer: y = 17x + 114

Step-by-step explanation:

The equation for the slope-intercept form is y = mx + b.

Arrange the equation so that it resembles y = mx + b.

You will do this by multiplying and subtracting so y is on the left side of the equation and mx + b is on the right side of the equation.

y + 5 = 17(x + 7)

y + 5 = 17x + 119

y + 5 - 5 = 17x + 119 - 5

y = 17x + 114

Answer:

Y = 17x + 114

Step-by-step explanation:

1. Y + 5 = 17 (x+7)

2. Y + 5 = 17x + 119   [Multiply the numbers in parenthesis by 17.]

3. Y = 17x + 114.     [To keep the balance and move the 5 over, subtract it from 119.]

Answer: 13,900

Step-by-step explanation:

To round numbers to the nearest hundred, you always look at the place one down which is the tens place. The tens place is 5.

The options for 856 to round to is either 800 or 900.

The rule is that 0-4 rounds down, 5-9 rounds up. Since the tens place is 5, it will round up to 900.

Therefore, the answer would be 13,900.

Answer:

-16

Step-by-step explanation:

Answer:

10 to the power of 3

Step-by-step explanation:

i used a calculator (´-﹏-`；) - Hope this helps

The first derivatives for the given functions are:

For \(y = 3x^2 + 5x + 10,\) the first derivative is dy/dx = 6x + 5.

For  \(y = 100200x + 7x,\) the first derivative is dy/dx = 100207.

For \(y = ln(9x^4),\) the first derivative is dy/dx = 4/x.

To find the first derivative for each of the given functions, we'll use the power rule, constant rule, and chain rule as needed.

For the function\(y = 3x^2 + 5x + 10:\)

Taking the derivative term by term:

\(d/dx (3x^2) = 6x\)

d/dx (5x) = 5

d/dx (10) = 0

Therefore, the first derivative is:

dy/dx = 6x + 5

For the function y = 100200x + 7x:

Taking the derivative term by term:

d/dx (100200x) = 100200

d/dx (7x) = 7

Therefore, the first derivative is:

dy/dx = 100200 + 7 = 100207

For the function \(y = ln(9x^4):\)

Using the chain rule, the derivative of ln(u) is du/dx divided by u:

dy/dx = (1/u) \(\times\) du/dx

Let's differentiate the function using the chain rule:

\(u = 9x^4\)

\(du/dx = d/dx (9x^4) = 36x^3\)

Now, substitute the values back into the derivative formula:

\(dy/dx = (1/u) \times du/dx = (1/(9x^4)) \times (36x^3) = 36x^3 / (9x^4) = 4/x\)

Therefore, the first derivative is:

dy/dx = 4/x

To summarize:

For \(y = 3x^2 + 5x + 10,\) the first derivative is dy/dx = 6x + 5.

For y = 100200x + 7x, the first derivative is dy/dx = 100207.

For\(y = ln(9x^4),\) the first derivative is dy/dx = 4/x.

For similar question on derivatives.

https://brainly.com/question/31399608

#SPJ8

The solution to the equation 2(t - 5) = 48 is t = 29.

To solve the equation 2(t - 5) = 48, we can use the following steps:

Distribute the 2 to the terms inside the parentheses:

2t - 10 = 48

Add 10 to both sides of the equation to isolate the variable term:

2t = 58

Divide both sides of the equation by 2 to solve for t:

t = 29

Know more about equation here:

https://brainly.com/question/29657983

#SPJ11

The probability that at least 3 of them will be carrying a reusable water bottle is 74.6%

Here it is given that probability of people who carry at least 1 reusable water bottle is p = 0.58.

A random sample of n = 5 people is selected.

This data follows a binomial distribution, with success denoted by a person carrying t least 1 reusable water bottle. The probability mass function of the binomial distribution is,

\(P(X=x)=(^n_x)P^x(1-P)^n^-^x; x=0,1,2,...0 < P < 1\)

Compute the probability that at least 3 of them will be carrying a reusable water bottle as follows:

P (X ≥ 3) =P(X=3)+P(X=4)+P(X=5)

\(P(X\geq 3)=(^5_3)0.58^3(1-058)^5^-^3+(^5_4)0.58^4(1-058)^5^-^4+(^5_5)0.58^5(1-058)^5^-^5\)        

P(X≥3)=0.449538048+0.237646416+0.0656356768

P(X≥3)=0.746821224

The percentage is,0.746821224 × 100 = 74.6%.

Thus, the probability that at least 4 of them will be carrying a reusable water bottle is 74.6%.

To know more about the binomial distribution:

https://brainly.com/question/24756209

#SPJ4

Answer:

36

Step-by-step explanation:

Answer:

it would be 60

Step-by-step explanation

4*5= 20

8*5=40

12*5=  60

We multiply by 5 because if we divide 20/4=5, 40/8=5, 60/12=5.

In hypothesis testing, a result is considered statistically significant if the p-value is less than or equal to the chosen level of significance, denoted by α. The statement "If P=0.06, the result is statistically significant at the α=0.01 level" is false.

In hypothesis testing, statistical significance is typically determined by comparing the p-value of a test statistic to a predetermined level of significance (α). If the p-value is less than α, then the result is considered statistically significant and the null hypothesis is rejected in favor of the alternative hypothesis.

In this case, if P = 0.06, it means that there is a 6% chance that the observed results occurred by chance alone under the null hypothesis. Since 0.06 is greater than α=0.01, the result is not statistically significant at the 0.01 level. Therefore, we cannot reject the null hypothesis at the 0.01 level of significance.

Since the p-value is greater than the level of significance, we do not reject the null hypothesis.

Therefore, we cannot conclude that there is a significant difference between the sample and population means at the 0.01 level of significance. It is important to note that statistical significance is not the same as practical significance, and even if the result is not statistically significant, it may still be meaningful or important in the context of the problem being studied.

Learn more about statistical significance here:

https://brainly.com/question/30311816

#SPJ11

If you make the minimal payment of $80 on the end of the first month, $61.85 will cross towards the principal and $18.15 will go towards interest charges.

To calculate how much of the minimal charge goes closer to the principal, we first need to calculate the amount of interest that accrues at the outstanding balance for the first month.

Interest charged for the month = monthly interest fee x outstanding stability

Now we are able to calculate how a good deal of the minimal fee goes closer to the principal:

Consequently, if you make the minimal payment of $80 on the end of the first month, $61.85 will cross towards the principal and $18.15 will go towards interest charges.

Learn more about Simple Interest:-

https://brainly.com/question/29716197

#SPJ1