Another brand of sheets is on sale 30% off with a regular price of $18.00 per sheet. Which is a better deal, the previous example or this one? Explain. (2 points)
30% OFF EACH SHEET!

Answer:

(a) Equation of parallel line is y = x + 4

(b) Equation of perpendicular line is y = - x + 8

Step-by-step explanation:

Given line is

x - y = 4

Rewrite this as

x - 4 = y

or

y = x - 4

This is the equation of a line in slope intercept form which is generally

y = mx + b

where m is the slope and b the y-intercept

Here m = 1, b = -4

(a) A parallel line will have the same slope but a different y-intercept
So for starters we can write the equation of the parallel line as
y = x + b

Since this passes through (2,6) sub 2 for x and 6 for y to get

6 = 2 + b

==> b = 4

Equation of the line is
y = x + 4

(b) A perpendicular line will have as slope -1/m where m is the slope of the original line

Here m = 1, so -1/m = -1/1 = -1

Equation will be of the form
y = -x + b

Since this also passes through (2,6)
6 = -2 + b

==> b = 6 + 2 = 8

Equation of perpendicular line is
y = -x + 8

Answer:

55

Step-by-step explanation:

Because you would minus 180-125 to get angle 1 and they said that angle 2 is parallel so they would be the same anwser so the answer is 55.

The coordinates of the other vertices of the triangle are (2a, 0), (2a, b), and (a, b).

What are the coordinates of the vertices of the triangle?

The coordinates of the vertices of a triangle are (x1,y1), (x2,y2), and (x3,y3). The line joining the first two is divided in the ratio l:k and the line joining this point of division to the opposite angular point is then divided in the ratio m:k+l.

To find the coordinates of the other vertices of the triangle, you can use the fact that the midpoint of a line segment is located at the average of the coordinates of the endpoints of the segment.

If the midpoint of one side of the triangle is located at (a, 0), then the coordinates of the two endpoints of this side must be (a, 0) and (2a, 0). The coordinates of one of the vertices is (2a, 0), and since this vertex is not the one located at the origin, the coordinates of the other vertex must be the origin, or (0, 0).

If the midpoint of another side of the triangle is located at (2a, b), then the coordinates of the two endpoints of this side must be (2a, b) and (2a, 0). One of the endpoints is (2a, 0), which we already know is a vertex of the triangle. The other endpoint, (2a, b), is also a vertex of the triangle.

Finally, if the midpoint of the third side of the triangle is located at (a, b), then the coordinates of the two endpoints of this side must be (a, b) and (0, 0). One of the endpoints is (0, 0), which we already know is a vertex of the triangle. The other endpoint, (a, b), is also a vertex of the triangle.

Hence, the coordinates of the other vertices of the triangle are (2a, 0), (2a, b), and (a, b).

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Using the speed formula, we know that Liam finished in 1 hour as opposed to Sam's 1/ 19 hours, earning him the victory.

Speed is calculated as follows: speed = distance * time.

Knowing the units for distance and time is necessary to calculate the units for speed.

The units will be in meters per second (m/s) in this example since the distance is measured in meters (m) and the time is measured in seconds (s).

So, the speed formula is:

Speed = Distance/Time

Taking time for the subject:

Time = distance/Speed

Now, Sam:
Time spent ascending the hill = 1/1 = 1 hour

Time spent descending the hill = 1/9 hours

Sam spent 1 1/the9 total minutes climbing and descending the hill.

Now, Lian:

Time spent ascending the hill = 1/2 hours

Time spent descending the hill = 1/2 hour

Total time spent ascending and descending the hill = 1/2 + 1/2 = 1 hour

Sam, therefore, took 1/9 hour longer than Liam.

Therefore, using the speed formula, we know that Liam finished in 1 hour as opposed to Sam's 1/ 19 hours, earning him victory.

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Answer:

24 inches

Step-by-step explanation:

To find the longest possible length of the shorter pieces that Terri can saw, you need to find the greatest common factor (GCF) of the three original lengths: 30 inches, 48 inches, and 72 inches.

The GCF of 30, 48, and 72 can be found by finding the prime factorization of each number and taking the lowest exponent for each prime factor.

30 = 2 * 3 * 5

48 = 2^4 * 3

72 = 2^3 * 3^2

The GCF is 2^3 * 3 * 5, or 24 inches. Therefore, the longest possible length of the shorter pieces that Terri can saw is 24 inches.

Hello,

I hope you and your family are doing well!

To find the GCF is to use the Euclidean algorithm, which involves repeatedly dividing the larger of the two numbers by the smaller one until the remainder is 0. This can be a quicker method for finding the GCF of larger numbers.

For example:

72 / 30 = 2 with a remainder of 12

30 / 12 = 2 with a remainder of 6

12 / 6 = 2 with a remainder of 0

The last non-zero remainder is 6, so the GCF is 6.

Regardless of the method used, the GCF of 30, 48, and 72 is 6, so the longest possible length of the shorter pieces that Terri can saw is 6 inches.

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The correct option is All real values of a.

What is the real number?

The positive and negative integers, as well as the fractions created from them (also known as rational numbers), as well as the irrational numbers, are all real numbers.

We have,

3x² + 2xy = 4    ...................(1)

x + y = a             ...................(2)

By converting the second equation equals to y:

y = a - x             .....................(3)

By substituting the (3)rd equation into (1), we get

3x² + 2xy = 4

3x² + 2x(a - x) = 4

3x² + 2ax - 2x² = 4

x² + 2ax = 4

x² + 2ax - 4 = 0

Discriminant  = 4a² + 16 >=  0

2 distinct solutions & is ok for all a.

hence, the correct option is All real values of a.

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Answer: 2. 37.8%

3. 30% decrease

Step-by-step explanation:

Increase = New Number - Original Number

Then:  divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

36.99-22.99=14

100(14/36.99)

37.8%

First: work out the difference (decrease) between the two numbers you are comparing.

Decrease = Original Number - New Number

Then: divide the decrease by the original number and multiply the answer by 100.

% Decrease = Decrease ÷ Original Number × 100

2.50-1.75=0.75

100(0.75/2.5)

30%

The absolute value function that is represented in the graph is f(x) = |x + 1.5| So the correct option is D.

The general absolute value function is:f(x) = |x|This absolute value function has a vertex at the point (0, 0). We know that the graphed function has a vertex at the point (-1.5, 0).

So basically we had a horizontal translation of -1.5 units or 1.5 units to the left. That is written as: g(x) = f(x + 1.5)

Replacing the absolute value function we get:g(x) = |x + 1.5|

Then the correct option is D.

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The required length of the longest side will be 28/5 cm in the triangle.

The perimeter of a triangle is defined as the addition of the lengths of the triangle's three sides.

We have been given that the three sides of a triangle are in the ratio of 3:5:7

Let's assume the sides are 3x, 5x, 7x

Since the perimeter of the triangle is 12 cm.

So, 3x+5x+7x = 12

Apply the addition operation,

15x = 12

x = 12/15

Reduce the above fraction to the simplest form

x = 4/5

So, longest side = 7x = 28/5 cm

Thus, the required length of the longest side will be 28/5 cm in the triangle.

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Answer:

log(2)√xy

________

y

there good luck

If in a recent poll, 280 people were asked if they liked dogs, and 42% said they did. the margin of error of this poll, at the 90% confidence level is 0.05.

Sample proportion =42%(phat)

Sample size =280

Standard error = √(0.42×( 1- 0.42)/280)

Standard error = √(0.42×(.58)/280)

Standard error =0.029

Hence,

Margin of error = z-critical for 90% confidence level× Standard error

Zα/2 = 1.645 for 90% confidence

Margin of error =  1.645 × 0.029

Margin of error  = 0.047

Margin of error =0.05 (Approximately)

Therefore the margin of error is 0.05.

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Answer:

[tex]\triangle CRQ \cong \triangle CSU[/tex] by SAS

Step-by-step explanation:

[tex]\angle QCR \cong \angle SCU[/tex] because of vertical angles.

Answer:

No real solutions.

Step-by-step explanation:

No real solutions.

[tex]\frac{\sin \theta}{300}=\frac{\sin 2\theta}{400} \\ \\ \frac{\sin \theta}{300}=\frac{2\sin \theta \cos \theta}{400} \\ \\ \frac{1}{300}=\frac{\cos \theta}{200} \\ \\ \cos \theta=\frac{2}{3} \\ \\ \theta=\arccos(2/3) \\ \\ \theta \approx \boxed{48^{\circ}}[/tex]

Eddie and Brad together shovel the snow in 1 hour 26 minutes.

Two or more expressions with an Equal sign is called as Equation.

Given that it takes Eddie 2 hours to shovel the snow from a driveway and sidewalk.

Brad can shovel the snow from the same driveway and sidewalk in 5 hours.

We now find how long would it take them working together to shovel the snow.

Eddie does 1/2 in 1 hour or x/2 in x hours

Brad does 1/5 in 1 hour or x/5 in x hours

the sum is 1 full job

(x/2)+(x/5)=1

multiply both sides by 10

7x=10

x=(10/7) hours or 600/7 minutes =86 minutes

As we know 1 hour has 60 minutes.

We can write 86 minutes as 1 hour and 26 minutes.

Hence, 1 hour 26 minutes is the time taken by Eddie and Brad to shovel the snow.

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Answer:

5 weeks

Step-by-step explanation:

20 inches  /  ( 4 inches/week ) = 5 weeks

Assuming that the tips are approximately normally distributed, an interval to estimate the true average tip (as a percent of the bill) with 90% confidence is (10.47, 11.73).

Assuming that the tips are approximately normally distributed, we would determine both the lower limit and upper limit for the confidence interval where 90% of the sample means occur as follows;

Lower limit = μ - σ/√x

Lower limit = 11.1 - 2.8/√20

Lower limit = 11.1 - 0.63

Lower limit = 10.47

For the upper limit, we have:

Upper limit = μ - σ/√x

Upper limit = 11.1 + 2.8/√20

Upper limit = 11.1 + 0.63

Upper limit = 11.73

For 90% of the sample means to occur, the confidence interval is as follows;

Confidence interval = (10.47, 11.73)

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The formula for estimating the population variance from the sample involves taking the sum of squared deviations and dividing it by N - 1

Population variance is a measure of dispersion that determines how far each data point is from the population mean.

On the population, the population variance is calculated. When the number of observations grows, a few data points are chosen to represent the entire population.

The variance calculated on these specific data points is referred to as the sample variance. The population variance can be estimated using the sample variance.

When the population variance is unknown , we estimate the population variance by using sample variance

The formula for estimating the population variance from the sample involves taking the sum of squared deviations and dividing it by N-1

Formula of sample variance  = [tex]s^2 = \frac{\sum f_i(x_i - \bar{x})}{N-1}[/tex]

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By using the concept of vector, it can be calculated that

Direction of the sum is 10.87° below the horizontal.

What is vector?

Anything that has both magnitude and direction and follow the vector addition law is called vector.

A = 2.71 m

[tex]A_x = 2.71 cos 60 = 1.355 \ m\\A_y = -2.71 sin 60 = -2.35 \ m[/tex]

B = 3.14 m

[tex]B_x = 3.14 cos 30 = 2.71 \ m\\B_y = 3.14 sin 30 = 1.57 \ m[/tex]

Sum of A and B = (1.355  +2.71) i + (-2.35 + 1.57) j

                           = 4.065i - 0.78j

Let the angle be [tex]\theta[/tex]

[tex]tan\theta = \frac{0.78}{4.065}\\tan\theta = 0.192\\\theta = tan^{-1}(0.192)\\\theta = 10.87^{\circ}[/tex]

Direction of the sum is 10.87° below the horizontal.

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The number of catnip toys that Jose can buy will be 3 catnip toys. All the steps are described below.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The table is given below.

       Product                 Cost

Bag of Dog Food          $35

Bag of Cat Food            $18

Chew Toy                      $12

Catnip Toy                      $9

In the event that, your numbers are unique, you should simply supplant the qualities you have with the methodology here, and you ought to find an exact solution.

Presently, Emma has $100 to spend at the store. Along these lines, we really want to ascertain the amount she spends on shopping:

$35 + 2 x $12 = $59

In this way, she burned through $59 in the store, so she has left:

$100 - $59 = $41

She has $41 left to spend on something different. How about we check whether she has sufficient means to purchase multiple times catnip toys as bite toys:

Chew toys: 3 x 12 = $36

Catnip toy: 3 x 9 = $27

Furthermore, Emma has $41 left, so she can either purchase multiple times bite toys or multiple times catnip toys, however not the two of them at that point, on the grounds that the all-out would be 63% dollars, and she will be missing $22.

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Answer:

  (11, 3)

Step-by-step explanation:

You want the point 1/6 of the way from A(14, -1) to B(-4, 23).

The point P that divides AB into the fractional parts k and (1 -k) is ...

  P = (1-k)A +kB

For k = 1/6, the dividing point is ...

  P = (5/6)(14, -1) +(1/6)(-4, 23) = (5·14 -4, 5(-1) +23)/6 = (66, 18)/6

  P = (11, 3)

The point 1/6 of the way from A to B is (11, 3).

The inequality is less than the quadratic function with zero -7 and 1 and includes the point (2,27/2) quadratic function is

The problem seeks the inequality that will be less than the quadratic function with zero -7 and 1 and includes the point (2, 27/2).

Therefore the quadratic function should have zeros at -7 and 1

Substituting the point (2, 27/2) to the quadratic function to check the one that gives the points shows that

3/2 x² + 9 x - 21/2 at x = 2

3/2 * 2² + 9 * 2 - 21/2

= 27/2

Solving for the zeros in the quadratic function 3/2 x² + 9 x - 21/2

shows that the zero are at

x = -7 and

Therefore the inequality that meets the condition is y < 3/2 x² + 9 x - 21/2

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When there are between 20 and 50 flags and they can be shared equally among 2 tents or 4 tents or 5 tents. The number of flags will be 40.

From the information, there are between 20 and 50 flags and they can be shared equally among 2 tents or 4 tents or 5 tents.

It should be noted that this simply means that we should find the highest multiple for 2, 4, and 5 between 20 and 50. This is 40.

Therefore, the number of flags is 40.

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Answer:

Step-by-step explanation:

[tex]\tt 30-19+29+30-29-10[/tex]

[tex]\tt 11+29+30-29-10[/tex]

[tex]\tt 40+30-29-10[/tex]

[tex]\tt 70-29-10[/tex]

[tex]\tt 41-10[/tex]

[tex]\tt 31[/tex]

__________________

Hope this helps you!

Have a nice day!

The surface area of the composite figure is calculated as: 640 square inches.

The surface area of a rectangular prism = 2(w*l + h*l + h*w), where:

The composite figure can be decomposed into two rectangular prisms, 1 and 2.

Rectangular prism 1:

l = 10 in.

w = 0.5 ft. = 6 in.

h = 4 + 7 = 11 in.

Surface area = 2*(6*10 + 11*10 + 11*6) = 472 in.²

Rectangular prism 2:

l = 10 in.

w = 0.5 ft. = 6 in.

h = 4 in.

Surface area = 2·(6·10+4·10+4·6) = 248 in.²

The area of the surface where both meet = (l)(w) = (10)(4) = 40 in.²

Therefore:

Surface area of the composite figure = 472 + 248 - 2(40) = 640 in.².

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The circumference of the circle will be 56.52 m.

And, The area of a circle will be 254.34 m².

What is Circle?

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Given that;

The radius of circle = 9 m

Now,

Since, The area of circle = πr²

Hence, The area of circle = 3.14 × 9²

                                        = 3.14 × 81

                                        = 254.34 m²

And, The circumference of the circle = 2πr

                                                         = 2 × 3.14 × 9

                                                         = 56.52 m

Thus, The circumference of the circle will be 56.52 m.

And, The area of a circle will be 254.34 m².

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Both balls will strike the ground simultaneously, but the faster ball will do so farther away from the table.

The unit g stands for gravitational acceleration. At sea level, the standard value of g on earth's surface is 9.8 m/[tex]s^{2}[/tex]

They will strike the ground simultaneously if the table and the ground are both flat.

It is customary to divide an object's motion into a vertical component and a horizontal component. While they are on the table, neither of the balls is moving vertically. Both balls begin to accelerate downward as soon as they leave the table due to the effects of gravity. Given that both balls experience the same acceleration from gravity, they will fall at the same rate and with the same downward velocity.

Both balls will strike the ground simultaneously, but the faster ball will do so farther away from the table.

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