I need help with this​

According to the given information, the correct answer is option b): (z+15)(z-15).

What is an algebraic expression?

An algebraic expression is a mathematical phrase that can contain numbers, variables, and mathematical operations such as addition, subtraction, multiplication, and division. Algebraic expressions are used to represent quantities or values that can vary, depending on the values assigned to the variables in the expression. Algebraic expressions can be simple or complex, and they can have one or more variables.

We can factorize the expression z² - 225 using the difference of squares formula, which states that a² - b² = (a + b)(a - b). In this case, a = z and b = 15, so we have:

z² - 225 = (z + 15)(z - 15)

Therefore, the correct answer is option b): (z+15)(z-15).

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The total tax that the employee is liable for paying will be $17,836 if the taxpayer declares $100,000 as income on the finished Form 1040.

An income range that is subject to a particular income tax rate is referred to as a tax bracket. A progressive tax system includes tax brackets, which indicates that when an individual's income increases, the amount of the tax rates increases gradually. Tax rates for low-income taxpayers are generally low, whereas those for high-income taxpayers are often higher.

For instance, a single filer in 2022 with $100,000 in taxable income will pay $17,836 in taxes, or an average tax rate of 18%. Your effective marginal tax rate, however, is 24%. As a result, the employee is accountable for paying a total of $17,836 in taxes.

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Answer:c

Step-by-step explanation:

c

Answer:b

Step-by-step explanation:

Answer:

Cantaloupe = $6, peach=$5

Step-by-step explanation:

\(8x+3y=63\\2x+3y=27\\\)

Subtract the first one from the second one

\(8x-2x+3y-3y=63-27\\6x=36\\x=6\\\)

Plug in:

\(2(6)+3y=27\\12+3y=27\\3y=15\\y=5\)

Hope this helps plz hit the crown :D

Answer:

80.219

Step-by-step explanation:

0.14 + 80.079 =

80.219

Fourteen hundredths + Eighty + Seventy-nine thousandths = 80,480.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Fourteen hundredths = 1,400

Eighty = 80

Seventy-nine thousandths = 79,000

Then the addition will be

⇒ 1400 + 80 + 79000

⇒ 80,480

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Answer: Set the form back to string, then try the features of date conversion such as DateParse and Date

Step-by-step explanation:

About the Date. The parse method, parses the date representation string and returns the number of milliseconds as of 1 January 2021, 00:00:00 UTC or NaN if the string is unrecognized or includes illegal date values in certain cases (e.g. 2019-09-31). Usage is not recommended

Answer:

Perry's claim is correct while Karina is incorrect

Step-by-step explanation:

Question is incomplete (See Attachment)

First, we need to determine the area covered by Karina and Perry

For Karina, there are 9 square boxes each of which has an area of 1 unit sq

So:

\(Karina = 9 * 1\ unit^2\)

\(Karina = 9\ unit^2\)

For Perry:

There are 18 square boxes, each of which has an area of 1 unit sq.

So:

\(Perry = 18 * 1\ unit^2\)

\(Perry = 18\ unit^2\)

Comparing both areas, we can conclude that Perry's claim is correct while Karina is incorrect

A and B are Similar

B and C are not Similar

A and C are not Similar

--

Square A and B use numbers in the tens whilst square C used 72 not tens and because A and B you add 20 to both sides and then they are equal.

Answer:

ok x should be 30

Step-by-step explanation:

Answer:

C. We are 95% confident that the mean length of eggs for this particular bird population is between 45 mm and 60 mm.

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

For 95% confidence interval, it means that we are 95% confident that the mean of the population is between the given upper and lower bounds of the confidence interval.

For the case above, the interpretation of the 95% confidence interval is that we are 95% confident that the mean length of eggs for this particular bird population is between 45 mm and 60 mm.

Using the volume of the sphere, it is found that 445.1 in³ of the ball is occupied by water.

The volume of a sphere of radius r is given by:

\(V = \frac{4\pi}{3}r^3\)

In this problem, the radius is of r = 5 in, hence the volume in cubic inches is given by:

\(V = \frac{4\pi}{3}(5)^3 = 523.6\)

85% of this is filled by water, hence the space occupied by water, in cubic inches, is of:

0.85 x 523.6 = 445.1.

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Based on the data recorded by Anna on Saturday, we can estimate the number of people expected to visit The Youth Wing on Sunday.

Let's calculate the proportion of visitors to The Youth Wing compared to the total number of visitors on Saturday:

\(\displaystyle \text{Proportion} = \frac{\text{Visitors to The Youth Wing on Saturday}}{\text{Total visitors on Saturday}} = \frac{382}{382 + 461 + 355}\)

Next, we'll apply this proportion to the total number of visitors on Sunday to estimate the number of people expected to go to The Youth Wing:

\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \text{Proportion} \times \text{Total visitors on Sunday}\)

Now, let's substitute the values into the equation and calculate the estimated number of visitors to The Youth Wing on Sunday:

\(\displaystyle \text{Proportion} = \frac{382}{382 + 461 + 355}\)

\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \text{Proportion} \times 800\)

Calculating the proportion:

\(\displaystyle \text{Proportion} = \frac{382}{382 + 461 + 355} = \frac{382}{1198}\)

Calculating the estimated number of visitors to The Youth Wing on Sunday:

\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \frac{382}{1198} \times 800\)

Simplifying the equation:

\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} \approx \frac{382 \times 800}{1198}\)

Now, let's calculate the approximate number of visitors to The Youth Wing on Sunday:

\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} \approx 254\)

Therefore, based on the data recorded on Saturday, we can estimate that around 254 people should be expected to go to The Youth Wing on Sunday.

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♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Answer:

It depends on ur speed.

Step-by-step explanation:

Answer: 106.4 minutes

Step-by-step explanation:

1. If the rate is 1 mile for 11.2 minutes, multiply the rate of the minutes to the miles to find the new sum.

2. 11.2 x 9.5 = 106.4

Answer: Its a rational number

Step-by-step explanation: All repeating decimals are rational :)

Answer:

Step-by-step explanation:

10(a)+5(c)=310

a= number of adult

c= number children

Answer: Volume of the given shape is, 147 yards.

Step-by-step explanation:

Volume is the amount of space in a certain 3D object.

The given figure is a rectangular prism with a length of 7yd, width of 7yd, and height (depth) of 3 yd.

You can multiply those values L x W x H, to get the volume:

7yd x 7yd x 3yd = 147 yd

A (-12, 14)

B (8, 8)

C (-12, -4)

D (0, -14)

E (14, 0)

F (0, 0)

Answer:

A (-12,14)

B ( 8,8)

C (-12,-4)

D (0,-14)

E (14,0)

F (0,0)

Step-by-step explanation:

(X,Y)

X coordinates go before Y coordinates in a given coordinate pair hope this helps!

Answer:

y = \(-\frac{5}{2}\)x - 1

Step-by-step explanation:

5x + 2y = 12

2y = -5x + 12

y = \(-\frac{5}{2}\)x + 6

y = mx + b

4 = \(-\frac{5}{2}\) ( -2 ) + b

4 = 5 + b

b = -1

y = \(-\frac{5}{2}\)x - 1

Answer:

9 (5x-1)

Step-by-step explanation:

you have to add 3x and 2x

Answer:

29x-9

Step-by-step explanation:

9(3x)-9(1)+2x

27x - 9 + 2x

27x+2x=29-

29x-9

Answer:

40%.

Step-by-step explanation:

-1/4, 3/2, and 1/6 are fractions, but 40% is not.

So on solving the provided question we can say that here, in triangle ABC and XYZ;  by SSS property they are similar.

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

here,

AB = XY

AC = XZ

BC = ZY

by SSS property, they are similar.

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Answer:

1:3

Step-by-step explanation:

I think this is correct but I advise looking it up :)

Answer:

Graphing quadratic functions The shortcut to graphing the function f(x) = x2 is to start at the point (0, 0) (the origin) and mark the point, called the vertex. Note that the point (0, 0) is the vertex of the parent function only.

Step-by-step explanation:

The standard error is of 0.2246, which means that the mean scores for samples of 30 vary around 0.2246 from the mean.

The confidence interval is the range of values that you expect your estimate to fall between a certain percentage of the time if you run your experiment again or re-sample the population in the same way.

The confidence interval formula is \(\bar x\pm t\frac{s}{\sqrt{n}}\).

Where, \(\bar x\) is the sample mean, t is the critical value, n is the sample size and s is the standard deviation for the sample.

Here,

\(\bar x\) =1.267, s=1.23, n=30

The standard error is Se= 1.23/√30

= 0.2246

Item a:

The standard error is of 0.2246, which means that the mean scores for samples of 30 vary around 0.2246 from the mean.

Item b:

Using a t-distribution calculator, considering a confidence level of 0.99 with 30 - 1 = 29 df, the critical value is t = 2.7564.

\(\bar x\pm tS_c\)

\(\bar x+ tS_c\) =1.267-2.7564(0.2246) =0.6479

\(\bar x- tS_c\) =1.267+2.7564(0.2246) =1.8861

Therefore, the 99% confidence interval to estimate the true mean score on this question is (0.6479, 1.8861). It means that we are 99% that the true mean score of all students in this question is between 0.6479 and 1.8861.

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Answer:

Step-by-step explanation:

From the given data:

The row percentage can be determined by: taking each box in each row and by dividing it with its total on that line, after that we will multiply it by 100 to get the result of it's equivalent percentage.

Table reconstruct the table from the question ; we have:

                y                

x              Yes          No              Total

Low           20         10                  30

Medium     15          35                 50

High           20           5                  25

Total          55           50                105

For Low; the total on the row is 30 ;

so for Yes: we have 20/30 × 100 = 66.7

for No ; we have 10/30 × 100 = 33.3

For Medium ; the total on the row is 50 ;

so for Yes: we have 15/50 × 100 = 30

for No ; we have 35/50 × 100 = 70

For High  ; the total on the row is 25;

so for Yes: we have 20/25 × 100 = 80

for No ; we have 5/25 × 100 = 20

                y                

x              Yes          No              Total

Low           66.7     33.3                100

Medium     30        70                  100

High           80       20                   100

b. The construction of a sketch percentage of the frequency bar chat with x on horizontal axis is shown in the attached file below.

Answer:

49 8/9 - 17 1/3 = -5/3 or -1 2/3

Answer:

0.40

Step-by-step explanation:

the constant rate of change is given to you in the problem.

The number of miles driven (n) and the total cost of renting the car (c) are related by a constant (k) as follows -

c - \(\frac{2}{5} n\) = k

We have a rental car company charges an upfront fee to rent a car, and then charges $0.40 per mile driven.

We have to determine the constant rate of change through which number of miles driven (n) and the total cost of renting the car (c) are related.

Initial count = x

Count increasing per second = 5

Assume that the bacteria count after t seconds is y. Then -

y = x + 5t

for t = 30 ↔ y = 150 + x

According to the question, we have -

Charge per mile driven = $0.40

n - represents the varying number of miles that you drive in the car.

c - represent the total cost (in dollars) you will have to pay for the rental car.

Assume that the upfront fee to rent a car is - $k

Total charge for driving 'n' miles after paying the upfront fee - $0.40n

The total cost for driving 'n' miles in a rental car -

c = k + 0.40n

c - \(\frac{2}{5} n\) = k

Where k is a constant and is equal to upfront fee.

Hence, number of miles driven (n) and the total cost of renting the car (c) are related by a constant (k) as follows -

c - \(\frac{2}{5} n\) = k

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Answer:

Step-by-step explanation:

$66 off

165 - 66 = $99

Save 99 dollars...

Can you please answer my question? It is here.

https://brainly.com/question/24638554?answeringSource=feedPublic%2FhomePage%2F10

Answer:

save $99 dollars in the store