Timberlee buys 4 shirts for $31 and Riley buys 7 shirts for $54.25. What is the constant of proportionality? Express your answer in decimal form.

The length of the base edge of the pyramid is 1.71 feet

In order to find the total surface area, we will need to add up the areas of the base and the three other sides. SA=B+12(P×h), where B is the area of the base of the pyramid, P is the perimeter of the base, and h is the slant height of the pyramid.

If l is the length of the square base and h is the height of the pyramid, then h =2/3l

from the formula, SA= B+12(P×h)

the perimeter of a square is 4l

the base area of square is l^2

therefore 96= l^2+ 12(4l×2/3l)

96= l^2+ 12×8/3l^2

96=l^2+32l^2

96= 33l^2

divide both sides by 33

l^2= 96/33

l=√2.91

l=1.71 feet

therefore the length of the base edge is 1.71 feet

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Answer:

a. parallel    b. neither      c. neither      d. perpendicular

Step-by-step explanation:

Find the gradient of the line in the graph

Choose 2 coordinates, I choose (0,1) and (3,3)

Use the formula

(y2 - y1)/(x2 - x1)

(3 - 1) / (3 - 0)

2/3

Gradient of a parallel line is the same

Gradient of a perpendicular line formula m1m2 = -1

(2/3)m2 = -1

m2 = -3/2

The gradient of the perpendicular line will be -3/2

The gradient of the parallel line will be 2/3

Any other gradient will be neither parallel nor perpendicular.

Answer:

a if both are right triangle

Step-by-step explanation:

if both are right triangles is the correct answer. Three sides and three angles together create a triangle. Here, Ryan and Kathy drew triangles with the same angle. We can say that two triangles are similarly based on certain rules.Ma

Answer:

When we reflect over the x-axis the answer will be (6, -2)

Then when we go 4 units right it will turn into (10,-2)

And lastly, when we go 3 units down, it will be (10,-5)

The Answer is (10,-2)

(Brainiest is optional)

Answer:

x+y=73, 1.5x+2y=1−8

lazyuser30

The required ratio for the burger is 3:6:9 and the ratio for the hot dog is 5:10:15.

Let the missing ratio in Burger be x and the ratio in the Hot dogs be y,

Now,

According to the question,

3 / 5 = x / 10

x = 6

Now,

x / 10 = 9  / y

Substitute the value of x,

6 / 10 = 9 / y

y = 90 / 6

y = 15

Thus, the required ratio for the burger is 3;6:9 and the ratio for the hot dog is 5:10:15.

In mathematics, a ratio suggests how commonly one variety consists of another. for example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to 6 (this is, eight:6, that's equal to the ratio four:3). similarly, the ratio of lemons to oranges is 6: 8 (or 3:4) and the ratio of oranges to the total amount of fruit is 8:14 (or 4:7).

The numbers in a ratio may be quantities of any kind, consisting of counts of human beings or items, or which include measurements of lengths, weights, time, and many others. In maximum contexts, each number is constrained to be advantageous.

A ratio may be specified either by way of giving each constituting number, written as "a to b" or "a: b", or through giving simply the price of their quotient a/b. identical quotients correspond to the same ratios.

Consequently, a ratio may be considered as an ordered pair of numbers, a fraction with the first number inside the numerator and the second one in the denominator, or as the price denoted by using this fraction. Ratios of counts, given via (non-zero) herbal numbers, are rational numbers, and might occasionally be natural numbers. while portions are measured with the same unit, as is often the case, their ratio is a dimensionless number. A quotient of quantities that are measured with distinct devices is referred to as a rate.

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Answer:

las fórmulas de 3 dividir por r te va a dar igual a 1.862

Answer: regularly patterned or that occur in regular intervals.

Step-by-step explanation: took it

The domain and range of the relation shown in the table include the following: A. domain:{−3, −1, 2, 4}, range:{0, 2, 4}.

In Mathematics, a domain can be defined as the set of all real numbers for which a particular function or relation is defined.

This ultimately implies that, a domain is the set of all possible input values (x-values) to a relation, and the domain of a graph comprises all the input values which are located on the x-coordinate from the least to the greatest.

Additionally, a range is the set of all real numbers that is associated with the elements of a domain i.e all of the y-values shown on the y-coordinate of the graph of a relation, from the least to the greatest.

By critically observing the table of this relation shown, we can reasonably infer and logically deduce the following:

Domain = {−3, −1, 2, 4}.

Range = {0, 2, 4}.

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Answer:

4.5 miles

Step-by-step explanation:

0.5 of a mile per 1/9 of an hour.

rate x time=distance and you need to find distance for one hour not 1/9 so multiply it by 9 so

0.5*9=4.5, 1/9*9=1

rate   time   distance

4.5  *    1   =  d

4.5*1=d

4.5=d

so the distance traveled in one hour is 4.5 miles

Answer:

4.5 miles

Step-by-step explanation:

Given:

Let x be the distance Julia rides in one hour.

Create an equivalent ratio of miles to hours:

[tex]\implies \dfrac{1}{2}:\dfrac{1}{9}=x:1[/tex]

[tex]\implies \dfrac{\frac{1}{2}}{\frac{1}{9}}=\dfrac{x}{1}[/tex]

[tex]\implies \dfrac{1}{2}\times \dfrac{9}{1}}=x[/tex]

[tex]\implies \dfrac{9}{2}=x[/tex]

[tex]\implies x=4.5[/tex]

Therefore, Julia rides 4.5 miles in one hour.

Answer:

42

Step-by-step explanation:

[tex]\frac{1}{2}[/tex] x = [tex]\frac{1}{7}[/tex]x + 15  Clear the fraction by multiplying all the way through by 14

7x = 2x + 210  Subtract 2s from both sides

5x = 210  Divide both sides by 5

x = 42

Answer: 3 is less than 7, the absolute value of 3 is less than the absolute value of 7

Step-by-step explanation: Absolute value is how far a number is from 0. the best way to show absolute value is to test how far away the number is from 0 by using a number line. For example, the absolute value of -9 would be 9, or the absolute value of 5 would be 5. Absolute value is the amount of distance between the number and 0.

Hope this helps!

Function A has a rate of change of 5 & function B has a rate of change of -4.5. so, function A has a greater rate of change.

What is the rate of change?

The rate at which a variable changes over a given time period. It is frequently used when discussing momentum, and it can be expressed as a ratio of a change in one variable to a corresponding change in another. This ratio is represented graphically by the slope of a line.

For the first function, we can use the equation of the slope

[tex]m = \frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]

take any two points,

m = (25-15)/5.5-3.5 = 10/2 = 5

The general equation of a straight line is;

y = mx + c

where m is the slope

Therefore, in the case of the second equation, -4.5 is the slope

Hence, function A has a rate of change of 5 & function B has a rate of change of -4.5. so, function A has a greater rate of change.

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Answer: -14

Step-by-step explanation:

The equation represents the price of a pumpkin is p = 5 + 0.35x

The cost of each pumpkin = $5.00

The cost of the pumpkin per pound = $0.35

Consider the price of the pumpkin = p

Consider the number of pounds = x

The equation is the mathematical statement that shows the relationship between two expression with an equal sign. In equation the inequality will not be a part. The expression is the combination of two expression and an equal sign

Then the equation will be

p = 5  + 0.35x

Hence, the equation represents the price of a pumpkin is p = 5 + 0.35x

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Answer:

HL

Step-by-step explanation:

Since the two triangles are right triangles and have 2 sets of congruent sides, you can use the HL congruence theorem to prove that they are congruent.

**HL only works with right triangles

The distance from an angle of depression to the boat at 21° to angle of depression of 50° is 112 feet

Information from the question

A boat is heading towards a lighthouse, where Yaritza is watching from a vertical distance of 139 feet

Yaritza measures an angle of depression to the boat at point AA to be 21°

Yaritza takes another measurement and finds the angle of depression to the boat (now at point BB) to be 50°

the distance from point AA to point BB = ?

The direction of movements describes a right triangle of

opposite =  ?

adjacent = 139 feet

The distance is calculated using tan, TOA let the angle be x

tan x = Opposite / Adjacent

for x = 21 point AA is solved

tan 21 = ? / 139

? = 139 * tan 21

? = 53.357

for x = 50 point BB is solved

? = 139 * tan 50

? = 165.654

the distance from point AA to point BB

= 165.654 - 53.357

= 112.297

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Answer:

Set the two functions equal to each other to find the point where they intersect:

[tex]x+2=2x+1\\\\x-2x=1-2\\\\-x=-1\\\\x=1[/tex]

Plug the x-value in to find the corresponding y-value. It should be the same for both functions:

[tex]y=x+2=1+2=3\\\\y=2x+1=2(1)+1=2+1=3[/tex]

So, they intersect on (1, 3), as shown on the graph below.

The mathematical expression is 3/5b -7 = a.

A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:

Given:

7 less than three fifths of b is a

So, the mathematical expression for the above statement is

(3/5)b - 7 = a

3b - 35 = 5a

3b- 5a= 35

Hence, the mathematical expression is 3/5b -7 = a.

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Answer:

Step-by-step explanation

C

The percent of increase in Zach's finishing time is 5%.

From the information, at a race a few months ago, he finished in 280 minutes and yesterday, he completed another triathlon and finished in 294 minutes.

The increase in time will be:

= New time - Old time

= 294 - 280

= 14 minutes

The percentage increase will be:

= Increase in time / Original time × 100

= 14 / 280 × 100

= 1/20 × 100

= 5%

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The probability that the person is over 40 years of age is 32/51 or 62.75%.

(the table is attached as image)

We know that,

The ratio of the size of the event space to the size of the sample space is the probability of an event.

The total number of possible outcomes is the size of the sample space.

The number of outcomes in the event you are interested in is called the event space.

Using the formula,

P = size of the event space/size of the sample space

⇒The probability that the person is older than 40,

sample size=255

size of the event space=85

P=85/255------> P=1/3

⇒the probability that the person drinks root beer,

sample size=255

size of the event space=75

P=75/255------> P=5/17

⇒the probability that the person is older than 40 of age or that they drink root beer,

P=(1/3)+(5/17)-----> P=(17*1+3*5)/51------> P=32/51-----> 0.6275----> 62.75%

therefore,

the answer is

32/51 or 62.75%

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(complete question)

if one of the 255 subjects is randomly selected, find the probability that the person is over 40 years of age or that they drink root beer.

The comparison of the linear functions to line A are given as follows:

A linear function is defined as follows:

y = mx + b.

In which the coefficients are listed as follows:

The slope determines if the lines are parallel, perpendicular, or neither, as follows:

In this problem, the function is:

y = 4x - 6.

Hence the slope is of:

m = 4.

Then the functions, relative to y = 4x - 6, are classified as follows:

The problem gives three lines with different slopes, and you have to define if they are parallel, perpendicular or neither parallel nor perpendicular.

The intercepts are not relevant and I couldn't find the problem on the internet, hence I say that they are constants.

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Answer:

x+a= b , where a,b are uncertain values. Although both can be solved similarly, the difference is that, in literal equations, the letters representing the amount of a numerical value do not always change; however, in a single-variable equation, the letters representing these can/may vary.

Step-by-step explanation:

x+a= b , where a,b are uncertain values. Although both can be solved similarly, the difference is that, in literal equations, the letters representing the amount of a numerical value do not always change; however, in a single-variable equation, the letters representing these can/may vary.

Answer: Yes

Step-by-step explanation:

Add all of their best times.

11.9 + 12.6 + 12.52 + 11.95 = 48.97

48.97 < 49.6

Area of the triangle in R² using determinant for the given vertices (-4, -4) , (0,-2) and (-2,4) is equal to 14 square units.

As given in the question,

Vertices of the triangle are given by:

( x₁ , y₁ ) = (-4,-4)

(x₂ , y₂) = (0, -2)

( x₃ , y₃) = (-2, 4)

Area of triangle using determinant is given by

= [tex]\frac{1}{2} \left|\begin{array}{ccc}-4&-4&1\\0&-2&1\\-2&4&1\end{array}\right|[/tex]

= (1/2) [-4(-2 -4) + 4(0+2) +1(0-4)]

=(1/2) ( 24 + 8 - 4)

= (1/2) ( 28)

= 14

Therefore, area of the triangle in R² using determinant for the given vertices (-4, -4) , (0,-2) and (-2,4) is equal to 14 square units.

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The number remaining for 19.35 to get to 25 is 5.65.

Expression simply refers to the mathematical statements which have at least two terms that are related by an operator and contain either numbers, variables, or both

In this case, the number remaining for 19.35 to get to 25 will be:

= New number - Old number

= 25 - 19.35

= 5.65

The number is 5.65.

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The given function are

r(x) = 2 - x²    and     w(x) = x - 2

(w*r)(x) can be obtained by multiplying the both function together

So, (w*r)(x) = w(x) * r(x) = (x-2)*(2-x²)

(w*r)(x) = x (2-x²) - 2(2-x²)

           = 2x - x³ - 4 + 2x²

∴ (w*r)(x) = -x³ + 2x² + 2x - 4

It is a polynomial function with a domain equal to R

The range of (w*r)(x) can be obtained by graphing the function

To graph (w*r)(x), we need to make a table between x and (w*r)(x)

See the attached figure which represents the table and the graph of (w*r)(x)

As shown in the graph the range of (w*r)(x) is (-∞,∞)