Scott and Harry went cycling every day. They increased the number of minutes of cycling every week as described below: Scott: Cycled for 10 minutes every day in the first week, 15 minutes in the second week, 20 minutes in the third week, and 25 minutes in the fourth week. Harry: Cycled for 10 minutes every day in the first week, 20 minutes in the second week, 40 minutes in the third week, and 80 minutes in the fourth week. Which statement best describes the methods used by Scott and Harry to increase the time they spent cycling? Scott's method is linear because the number of minutes increased by an equal number every week. Harry's method is linear because the number of minutes increased by an equal factor every week. Both Harry's and Scott's method is exponential because the number of minutes increased by an equal factor every week. Both Harry's and Scott's method is exponential because the number of minutes increased by an equal number every week.

Answer:

The  length of the hypotenuse of the isosceles right triangle with leg of length  unit is:

√2 units.

Step-by-step explanation:

Let a and b denote the leg of a right triangle and c denote the hypotenuse of the right triangle.

Now we apply the Pythagorean Theorem as:

[tex]c^2=a^2+b^2[/tex]

Now as triangle is isosceles.

Hence, a=b=1 unit

[tex]c^2=1^2+1^2\\\\c^2=2\\\\c=\sqrt{2}[/tex]

         Hence, the length of the hypotenuse is:

              √2 units.

Answer:

  y = 1716 -143x

Step-by-step explanation:

You want an equation for the amount owed after x months on a purchase of $1716 paid at the rate of $143 per month.

After x months, the amount paid will be 143·x. The amount owed is the difference between the original purchase price and the amount paid:

  owed = $1716 - paid

  y = 1716 -143x . . . . . . . . . the amount Jonathan still owes after x months

Answer:

A. Similar

Step-by-step explanation:

We are given the measurements of ΔQRS and ΔTUV as,

QR = RS = 4, QS = 2 with ∠Q = ∠S = 76°, ∠R = 28°

TU = UV = 12, TV = 6 with ∠T = ∠V = 76°, ∠U = 28°

Now, we see that,

These triangles have different side lengths. So, option C i.e. same sides is not correct.

Also, they are different in size. So, option D i.e. same size is not correct.

Since, they do not have same size, they cannot overlap each other. Thus, are not congruent. So, option B is also not correct.

Thus, we see that from SAS Similarity and the measurements,

QR = RS = 4 and ∠R = 28°

TU = UV = 12 and ∠U = 28°

Both the triangles are similar to each other.

Hence, option A is correct.

Answer:

Cone

Step-by-step explanation:

We are given that a triangle ABC .

We have to find that what shape is formed when a triangle ABC is rotated about side AB.

A given triangle ABC is  a right triangle.

When we rotate the figure about side AB then the figure will be cone .The side AB will be height of cone and side AC will be radius of cone.

Hence, when a triangle ABC is rotated about side  AB, the cone is formed.

Answer: Cone

The probability that both pieces of bubble gum picked are grape flavored is 3/38, calculated by multiplying the probability of picking a grape piece first (6/20) and then another after the first is given away (5/19).

The question asks us to calculate the probability that both pieces of bubble gum picked from the bag are grape flavored. The bag contains six grape, nine sour apple, and five regular flavored pieces. To find the probability that both pieces are grape, we calculate the probability of picking one grape piece and then another grape piece after the first has been given away.

The total number of pieces initially is 6 (grape) + 9 (sour apple) + 5 (regular) = 20 pieces. The probability of picking a grape piece first is 6/20. After giving it away, there are 5 grape pieces left and the total number of pieces in the bag is now 19. The probability of then picking another grape piece is 5/19. To find the overall probability of both events occurring, we multiply the individual probabilities: (6/20) * (5/19) = 30/380 = 3/38.

Therefore, the probability that both pieces are grape is 3/38.

The costs per ride for Thrill and Splash amusement parks can be represented by the equations y = 40 + 5x and y = 60 + 3x respectively. Equating these will give us the number of rides where the costs at both parks will be the same.

The cost of visiting each park can be represented as a linear equation. For Thrill amusement park it can be written as y = 40 + 5x, where y is the total cost, 40 is the entry fee and 5x represents the cumulative cost of the rides, with x being the number of rides. For Splash Water Park, the equation is y = 60 + 3x, where 60 is the entry fee and 3x is the cost of the individual rides. To find out when the costs per ride at the two parks will be the same, we solve the system of equations by setting the two equations equal to each other: 40 + 5x = 60 + 3x.

https://brainly.com/question/21620502

#SPJ12

Answer:

Option A is correct.

Step-by-step explanation:

Given:

Angle of the right angles triangle are 45° , 45°, 90°

Length of the Hypotenuse = 7√2 units.

To find: Length of the one leg of the triangle.

Since two angles of the triangles are equal.

⇒ Opposite sides to equal angles are also equal.

We have Isosceles right angled triangle.

⇒ both legs are equal.

Let x be the length of the leg

using Pythagoras theorem,

(7√2)² = x² + x²

2x² = 49 × 2

x² = 49

x = ±7

Length cannot be negative so, x = 7

Therefore, Option A is correct.

If sin x = 0.5, cos x is approximately 0.87.

There are three commonly used trigonometric identities.

Sin x = Perpendicular / Hypotenuse

Cosec = Hypotenuse / Perpendicular

Cos x = Base / Hypotenuse

Sec x = Hypotenuse / Base

Tan x = Perpendicular / Base

Cot x = Base / Perpendicular

We have,

To find cos x, we can use the identity: cos² x + sin² x = 1

We are given that sin x = 0.5.

We can substitute this into the identity to solve for cos x:

cos² x + sin² x = 1

cos² x + (0.5)² = 1

cos² x + 0.25 = 1

cos² x = 0.75

cos x = ±√0.75

We take the positive square root since cosine is positive in the first and fourth quadrants.

Evaluating the square root gives:

cos x ≈ 0.87 (rounded to two decimal places)

Therefore,

cos x is approximately 0.87.

Learn more about trigonometric identities here:

https://brainly.com/question/14746686

#SPJ5

Final answer:

The expanded form of 38,072 is 30,000 + 8,000 + 70 + 2, where each term represents the digit's value as a product of its place value.

Explanation:

The expanded form of the number 38,072 is written by separating each digit according to its place value and expressing it as the digit multiplied by the power of ten that represents its position. Therefore, the correct expanded form is:

30,000 + 8,000 + 70 + 2

To understand this, we can consider the place value of each digit in the number 38,072. The '3' is in the ten-thousands place, so it is 3 times 10,000, which is 30,000. The '8' is in the thousands place, so it is 8 times 1,000, which is 8,000. The '0' stands for no hundreds, so we skip it. The '7' is in the tens place, so it is 7 times 10, which is 70. Finally, the '2' is in the ones place, which is just 2.

Final answer:

The quality control manager can use a representative sampling method to test jars of peanut butter for quality, with tests such as total plate count and adherence to quality control protocols and good measurement practices for reliable results.

Explanation:

A quality control manager at a peanut butter manufacturing plant can ensure the quality of peanut butter jars using a representative sampling method. This involves selecting jars at regular intervals from the assembly line, and then conducting tests such as total plate count to measure potential bacterial contamination. For accurate quality control, the process should follow good measurement practices and a standardized quality control protocol that includes recording and analyzing the data and evaluating any deviations from set specifications.

The personnel responsible can reject any sample or batch that does not meet the required standards. For continuous quality assurance, statistical process control methods like mean, standard deviation, and coefficient of variation can be utilized to monitor ongoing production. Furthermore, post-production specifications will determine whether to release or reject the final product. Appropriate documentation and adherence to standard operations procedures (SOPs) are crucial throughout the process, maintaining a systematic approach to product quality.

Answer:  The required ordered pair is (1, 0).

Step-by-step explanation:  We are given to find an ordered pair (x, y) that is a solution to the following equation:

[tex]3x-y=3~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

To find an ordered pair, we should either take a value of x and find the corresponding value of y,

or,

we should take a value of y and find the corresponding value of x.

Let us consider that

x = 1.

Then, from equation (i), we get

[tex]3\times 1-y=3\\\\\Rightarrow 3-y=3\\\\\Rightarrow y=3-3\\\\\Rightarrow y=0.[/tex]

Thus, the required ordered pair is (1, 0).

1) An Isosceles triangle has three sides, in which two sides are of the same length and the third has a different length. It has two angles of the same value and a third angle with a different value, as well.

In the figure is shown that angles Y and Z are the same, then the sides of this angles must be of the same length. This means that:

XY=XZ

(9n+12)ft=(15n-6)ft      

From this equation we have to find n:

9n-15n=-6-12

-6n=-18

[tex]n=\frac{-18}{-6}[/tex]    

n=3

2) The measure of the leg XY in ft

XY=(9n+12)ft

Substitute the value of n calculated in the first question:

XY=(9(3)+12)ft

XY=39 ft

3) The measure of the leg XZ in ft

XZ=(15n-6)ft

Substitute the value of n calculated in the first question:

XZ=(15(3)-6)ft

XZ=39ft

A triangle is isosceles triangle when the two sides and two angle of the triangle in equal in measure.

A triangle is isosceles triangle when the two sides and two angle of the triangle in equal in measure.

Given information-

The length of the side [tex]XY[/tex] is ([tex]9n+12[/tex]).

The length of the side [tex]XZ[/tex] is ([tex]15n-6[/tex]).

The measure of angle,

[tex]m\angle Y=m\angle Z[/tex]

For the isosceles triangle, the two sides and two angle of the equal in measure.

As the measure of angle,

[tex]m\angle Y=m\angle Z[/tex]

Thus the opposite side of this angles must be equal. Thus,

[tex]XY=XZ[/tex]

Put the values as,

[tex]9n+12=15n-6\\15n-9n=12+6\\6n=18\\n=3[/tex]

Hence the value of n is 3 units.

The length of the side [tex]XY[/tex] is ([tex]9n+12[/tex]).

Put the value of n,

[tex]XY=9n+12\\XY=9\times3+12\\XY=27+12\\XY=39 \rm ft[/tex]

Hence the measure of  leg XY is 39 feet.

The length of the side [tex]XZ[/tex] is ([tex]15n-6[/tex]).

Put the value of n,

[tex]XZ=15n-6\\XZ=15\times3-6\\XZ=39\rm ft[/tex]

Hence the measure of  leg XZ is 39 feet.

Learn more about the isosceles triangle here;

https://brainly.com/question/1475130

The correct answer for this problem would be D. (4x^2 + 7)(x – 3) .

Hope this helps and clears up any confusion!

The solution is 2 glasses

The number of 1/4 quart-sized glasses to fill the lemonade is given by the equation A = 2 glasses

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number of 1/4 quart-sized glasses to fill the lemonade be A

Now , the equation will be

The amount of lemonades = 1/2 quart of lemonade

The size of the glasses = 1/4 quart-sized glasses

So , the equation will be

A x 1/4 quart-sized glasses =  1/2 quart of lemonade  

On simplifying the equation , we get

A / 4 = 1/2

Multiply by 4 on both sides of the equation , we get

A = ( 1/2 ) x 4

A = 2 glasses

Therefore , the value of A is 2 glasses

Hence , the number of glasses is 2

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ5

Answer:

option D

Step-by-step explanation:

translated 12 units down and 7 units right

(x,y)-> (x+7, y-12)

Lets pick a point on Rectangle A and apply the translation

(-11,4) -> (-11+7, 4-12) ->(-4, -8) That is not in our Rectangle E

Lets pick a point on Rectangle B and apply the translation

(-7,1) -> (-7+7, 1-12) ->(0, -11) That is not in our Rectangle E

Lets pick a point on Rectangle C and apply the translation

(-5,5) -> (-5+7, 5-12) ->(2, -7) That is not in our Rectangle E

Lets pick a point on Rectangle D and apply the translation

(-3,1) -> (-3+7, 1-12) ->(4, -11) That is in our Rectangle E

So option D is correct

Answer:

1. B) logb(q^2t^8)

2. D) None of these (it is actually log (x^4/(x+2)^6) :D)

3. B) log5(7)+5log5(a)

4. C) 6.209

5. A) 81 decibels

Step-by-step explanation:

trust me bro

The sampling method used by the Hamden board of education was systematic, not random, and the sample size of 40 voters out of a population of 7,300 is too small to produce reliable conclusions regarding the community's opinion about building a new media center.

The quality of conclusions drawn from opinion polls largely depends on the methods used to choose a sample and the sample size. When the Hamden board of education sampled every tenth person from the registration list of 7,300 voters to reach 40 voters, they applied a systematic sampling method, as opposed to a truly random sample. While systematic sampling can be used as an approximation of random sampling, this method still poses a risk of introducing bias if there are hidden patterns in the voter registration list.

The sample size is indeed critical for the reliability of the poll. In this case, surveying only 40 voters out of 7,300 is too small to capture the diverse opinions of the entire voter population, which may lead to false inferences and less confidence in the results. For public opinion polls, especially on matters like building a new media center, a larger sample would provide more reliable information and reduce the potential variation that can arise from a smaller sample. Industry standards suggest varying sizes that can balance the accuracy and cost-effectiveness, often ranging from 500 to 2,500 respondents or more depending on the desired level of accuracy.

https://brainly.com/question/39338704

#SPJ3