a)
Isaac is purchasing two pairs of shoes-one pair for $37.00 and the second
pair for $42.00. The state sales tax applied to Isaac's bill is 7%. How much is Isaac's
total bill? Show your work. (2 points)
The answer is 84.53

Answer:

x=28

Step-by-step explanation:

Hi there!

SSS similarity theorem is a theorem that can determine similar triangles; the criteria for SSS~ is that the corresponding sides of the triangles create proportions which is the same as the ratio of similitude (k)

First, we need to find the ratio of similitude.

We need to assume that the triangles are similar.

15 corresponds with 20 (if you turn both triangles until they're titled the same way, you will see that 15 and 20 are the measures of the same sides on the triangles)

so that means 15/20 must make the ratio of similitude

15/20 is equal to 3/4

therefore k=3/4

as the triangle is already assumed similar, that means that 21/x will also give us a ratio that is equal to 3/4 (ratio of similitude)

therefore, 21/x=k

Since both ratios are equal to k, set 3/4 and 21/x equal to each other. This is possible via a property called transitivity (if a=b and b=c, then a=c)

3/4=21/x

cross multiply

3x=84

divide both sides by 3

x=28

So that means that 28 will make the triangles similar by SSS similarity

*you double check by doing 21/28 and see that it's also equal to 3/4

Hope this helps!

Answer:

c

Step-by-step explanation:

none of the above

C none of the above

because x-(-x)=x+x=2xand

-x+(-x)= -x-x=-2x

so answer is 'C' none of the above

Answer:

1.77

Step-by-step explanation:

Answer:

42

Step-by-step explanation:

6 x 7 = 42

The equation of the line passing through the point (2, -2) with a slope of -3 is: \(y = -3x + 4\).

We can use the point-slope form of the equation of a line which is:

\(y - y1 = m(x - x1)\)

where m is the slope of the line, and (x1, y1) is a point on the line.

We are given the slope of the line, which is -3, and a point that the line passes through, which is (2, -2).

Substituting these values into the point-slope form of the equation of the line, we get:

\(y - (-2) = -3(x - 2)\)

Expanding and simplifying, we have:

\(y + 2 = -3x + 6y\)

\(= -3x + 4\)

Therefore, the equation of the line passing through the point (2, -2) with a slope of -3 is: \(y = -3x + 4\).

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Answer:

A i think?

Step-by-step explanation:

25% probably

Answer:

d) 50%

Step-by-step explanation:

32 oz - 16 oz = 16 oz

\( \frac{16}{32} = \frac{1}{2} = 50\%\)

Answer:

x is equal to 7

Step-by-step explanation:

Because the two horizontal lines are parallel, we know that the angles at which they intersect the diagonal line will be identical.

We also know that on either side of the diagonal line, the sum of the angles between that and either of the horizontal lines will be 180.

In short, we know that the two values given have a sum of 180.  With that we can quickly solve for x:

(x + 67) + (x + 127) = 180

2x + 194 = 180

2x = -14

x = 7

Answer:

641.96

Step-by-step explanation:

The function g(x) = x - 3 graphed will indicate a slope of a line that equals 1 and whose line cuts the x-axis and the y-axis on the following coordinates (3, -3). See graph attached.

In mathematics, a graph is defined as a graphical representation or diagram that organizes facts or values. The graph's points frequently reflect the relationship between two or more objects.

Given the function g(x) = x - 3,

This means that our slope m = 1 [that is 1x);

While the y-intercept or constant is [-3]

hence,

y = x -3

To derive the possible points on the graph:

We insert arbitrary values as x starting from "0" to get the value of y

Where x = 0

y = 0-3

= -3

repeat for 1 through 10 to get the figures on the table.  See the results when graphed in the attached image.

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Answer:

since the radius is 11 witch the radius is only half so times by 2 witch would be the diamater witch is 22 so the area would be A≈381

Step-by-step explanation:

A=14πd2=14 · π · 222 ≈ 381

i think thats it bc If the object is a circle, and you know its circumference, you would divide the circumference by pi to find the diameter of the circle. Half the diameter is the radius. Square the radius and multiply by pi to find the area of the circle.

Answer:

Step-by-step explanation:

Comparing 7/10 and 1/3 by first comparing both to 1/2,

Hence, the first mistake was in Step 1

Answer:

a^6b^4

Step-by-step explanation:

Answer:

-a^6b^4c^2

Step-by-step explanation:

Multiplying exponents, all you have to do is add them

Hope this helps!

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

To find the p-value from the t statistic on TI-84, you will need to perform a hypothesis test. Here are the steps:1. Enter your data into the calculator and choose the appropriate test.2. Calculate the t statistic by dividing the sample mean by the standard error.3. Determine the degrees of freedom. This is n-1 for a one-sample t-test or n1+n2-2 for a two-sample t-test. 4. Use the t-distribution table to find the critical value for your test.5. Calculate the p-value using the t-distribution function on the calculator.6. Compare the p-value to the significance level (usually 0.05) to determine whether to reject or fail to reject the null hypothesis.7.

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

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The area of the composed rectangle and the semicircle is 92.56 square units.

Area of rectangle and semicircle

The formula for the Area of a Rectangle.

A = l × w.

where l refers length and w refers width of the rectangle

The area of a semicircle refers the half of the area of the circle. Therefore, the area of a semicircle is 1/2(πr²), where r is the radius.

Given,

Here we have the figure below composed of a rectangle and a semicircle And we need to find the area of this figure then round to the nearest tenth place.

Here we know the following values,

Length of the rectangle = 10

Width of the rectangle = 8

Diameter of the circle = 8

Through the given diameter we have identified the radius as 4.

Now, the area of the rectangle is calculated as,

A = 10 x 8

A = 80 square units.

Similarly, the area of the semicircle is

A = 1/2 (π x 4²)

A = 1/2 x π x 8

A = π x 4

We know the value of π = 3.14, then the area of the semicircle is,

A = 3.14 x 4

A = 12.56 square units.

Therefore, the are of the figure is,

Total area = area of rectangle + area of semicircle

Total area = 80 + 12.56

Therefore, the total area of the figure is 92.56 square units.

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Answer:

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

Jonathan spends the fraction of total:

The fraction of money left:

Jonathan has 7/20 of money left.

Answer:Company B 12.72

Step-by-step explanation:

35/2.75=12.72

32.50/2.5=13

You divide them so you get the price per one pound.

Hope this helps!!!!

Answer:

Company B offers the lowest price per pound of 12.72

Step-by-step explanation:

Unit Price

Given a product that costs X dollars and has Y pounds, the unit price is given by X/Y dollars per pound.

Elle is comparing prices to purchase candy online. Company A offers 2 1/2 pounds of chocolate for $32.50 and Company B offers 2 3/4 pounds of chocolate for $35.00.

The offer of Company A is for 2 1/2 pounds = 2.5 pounds

The offer of Company B is for 2 3/4 pounds = 2.75 pounds

The unit price for Company A is $32,50/2.5 = $13/pound

The unit price for Company B is $35,00/2.75 = $12.72/pound

Company B offers the lowest price per pound of 12.72

Answer:

Total number of strikeouts:

Total number of at bats:

Hits = times - strikeouts:

Percentage:

Answer:

its i dont know I can barely see

Step-by-step explanation:

Subtraction property of equality

====================================================

Reason:

We subtract 18 from both sides to go from 4x+18 = 78 to 4x = 60

So we use the aptly named subtraction property of equality.

In general that rule is if a = b, then a-c = b-c

Answer:

does ² mean ×2?

cuz if it does that maybe I can help

proof:

CD= radius r

OC=OD= radius

OCD is equilateral triangle

∠DCO=∠COD=∠ODC=60  degrees

∠ACB=90  degrees

 (Angle in semicircle)

∠DOC=2∠DBC (half angle)

∠DBC=30  degrees

∠ECB+∠BCA=180  degrees

 (linear pair)

∠ECB=180−90=90  degrees

In △ECB

∠CEB+∠ECB+∠CBE=180  degrees

∠CEB+90+30=180

∠CEB=60  degrees

*This is the full proof and ask me questions in comments if you have anything you don't understand! Also I would appreciate if you give me brainlliest!!

definition of a kite is option c

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Answer:

x=3y-29/y-8

Step-by-step explanation:

3(y-10)+1=x(y-8)

xy-8x=3y-29

x(y-8)=3y-29

/y-8        /y-8

x=3y-29/y-8

Answer:

B) 9/2

Step-by-step explanation:

18 yards would be 54 feet

54:12  Divide both numbers by 6

9:2

Step-by-step explanation:

The dimensions of the cuboid are 5 cm, 7 cm and 9 cm.

The formula for the surface area of the cuboid is as follows :

\(A=2(lb+bh+hl)\)

We have,

b = 9 cm, l = 7 cm and h = 5 cm

So,

\(A=2(9\times 7+9\times 5+7\times 5)\\\\A=2\times 143\\\\A=286\ cm^2\)

Jamie forgets to multiply 143 by 2 as the formula for surface area contains 2 as well.

The Pearson correlation coefficient can be used as both a descriptive statistic and an inferential statistic.

As a descriptive statistic, the Pearson correlation coefficient describes the strength and direction of the linear relationship between two variables. It provides a numerical measure between -1 and 1, where -1 indicates a perfect negative linear relationship, 1 indicates a perfect positive linear relationship, and 0 indicates no linear relationship.

As an inferential statistic, the Pearson correlation coefficient can be used to test hypotheses and make inferences about the population correlation based on a sample. Hypothesis testing allows you to determine whether the observed correlation in the sample is statistically significant or occurred by chance. By examining the p-value associated with the correlation coefficient, you can make inferences about the strength of the relationship in the population.

Therefore, the correct answer is that the Pearson correlation coefficient can be used as both a descriptive and an inferential statistic.

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Answer:

\(\frac{19-6\sqrt{2} }{4}\)

(2.6286797)

Step-by-step explanation:

\((\frac{2}{3\sqrt{2}-1 })^2 = \frac{4(19+6\sqrt{2})}{289}\)

for fractions, 1 / x / y = y / x    

\(\frac{1}{\frac{x}{y} } = \frac{y}{x}\)

so, we are left with:

\(\frac{289}{4(19+6\sqrt{2})}\)

then we cancel into \(\frac{19-6\sqrt{2} }{4}\)

and that's your answer :)

\(\frac{19-6\sqrt{2} }{4} = 2.62867965644\)

(you don't need it to be that exact but it's fun to write unnecessarily long decimals)

so, in decimal form: 2.6286797

hope this is helpful!!

Given that the trigonometric function is cos(14t) - cos(20t).We know that cos A - cos B = - 2 sin ((A + B) / 2) sin ((A - B) / 2)Therefore, cos(14t) - cos(20t) = -2 sin ((14t + 20t) / 2) sin ((14t - 20t) / 2) = -2 sin (17t) sin (-3t)Now, sin (- θ) = -sin θTherefore, -2 sin (17t) sin (-3t) = 2 sin (17t) sin (3t).

Therefore, the given trigonometric quantity cos(14t) - cos(20t) can be rewritten as a product of two trigonometric functions with different frequencies, which is 2 sin (17t) sin (3t).If we are interested in more detail, we can write it as: cos(14t) - cos(20t) = 2 sin (17t) sin (3t)Here, the trigonometric quantity cos(14t) - cos(20t) can be converted into the product of two sine functions, with different frequencies, 17t and 3t. This simplifies the calculation process. It is a useful technique in solving a variety of problems. Thus, we have solved the given question.

Thus, we can say that the given trigonometric quantity cos(14t) - cos(20t) can be rewritten as a product of two trigonometric functions with different frequencies, which is 2 sin (17t) sin (3t).

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