A museum has scale models representing different time periods in history. A scale in which one inch in the model represents two feet is used to construct the models. The museum's sculptor wants to build a model of an 18-foot-tall tree for one of the exhibits. How tall should she make the model of the tree?

Answers

Answer 1

Answer:

9 in

Step-by-step explanation:

Use ratios:

1 in ⇔ 2 ftx in ⇔ 18 ft

Solve by cross-multiplication:

1/2 = x/ 182x = 18x = 9 in

Related Questions

what is the least common denominator 5/8 and 3/4

Answers

Answer:

The least common denominator is 8, you need to multiply the 3 by 2.

Answer:

8

Step-by-step explanation:

A square and an equilateral triangle are joined to form the polygon shown what is the sum of the interior angles of the polygon 240 degrees 360 degrees 420 degrees 540 degrees

Answers

Answer:

540°

Step-by-step explanation:

An equilateral triangle has 3 interior angles of 60°

A square has 4 interior angles of 90°.

When the images are joined, two vertices of each figures are joined together, such that these angles will have now a measure of:

60° + 90° = 150°

Then this figure has:

one angle of 60°

two angles of 150°

and two angles of 90°

(the image below illustrates this situation)

The sum of the interior angles is:

S = 60° + 2*150° + 2*90° = 540°

Which of these arcs has a measure of 134 degrees?

• FJ
• DF
• EG
• DH

Answers

Answer:

[tex]df \: is \: correct \: answer[/tex]

F39) if x## is defined as x## = x² - x for all values of x, and A## = ( A - 2 )##, then what is the value of A?

Answers

The value of A in A## = ( A - 2 )## if x## = x² - x is 2 Or 3.

What are coding and decoding?

Topics in the reasoning part include coding, decoding, and reasoning. One of the most frequently occurring portions in all of the important competitive exams specifically created for employment procedures and higher education is this one. Because Coding-Decoding and Reasoning problems can be difficult for some applicants to complete, they avoid them and lose some quick and simple marks.

Given, x## is defined as x## = x² - x.

Therefore,

A## = (A - 2)##

= (A - 2)² - (A - 2).

= A² - 4A + 4 - A + 2.

= A² - 5A + 6.

Let, A² - 5A + 6 = 0.

A² - 3A - 2A + 6 = 0.

A(A - 3) - 2 (A - 3) = 0.

(A - 3)(A - 2) = 0.

A = 3 Or A = 2.

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2 Dylan needs 2.5 liters of water for an experiment. He has 1.125 liters.
How much more water does Dylan need?
Show your work.
Dylan needs how many
liters of water.

Answers

So Dylan needs 1.375 liters of water more for his experiment.

Define percentage.

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Define Fraction.

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

To find out how much more water Dylan needs, we can subtract the amount of water he currently has from the amount of water he needs for the experiment.

2.5 - 1.125 = 1.375 liters

So Dylan needs 1.375 liters of water more.

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Parker could pay 45% of his college tuition with his scholarship. The remaining $10,500 he paid for a with a student loan. What was the cost of Parker's tuition? Show your work.

Answers

Answer:

5,775 for the cost of parking tuition

Step-by-step explanation:

45% = 0.45

0.45(10,500)= 4,725

10,500 - 4,725 = 5,775 for the cost of parking tuition

Select all ratios equivalent to 2:14. A3:21b.1.2.c
16:112

Answers

The ratios equivalent to 2:14 are 3:21 and 16:112. Option A &C

What is equivalent ratios?

Equivalent ratios are the ratios that are the same when we compare them. Two or more ratios can be compared with each other to check whether they are equivalent or not. For example, 1:2 and 2:4 are equivalent ratios.

2:14 = 2/14

Reducing 2/14 to the lowest terms = 1/7

2:14 is equivalent to 1:7

3:21 = 3/21 = 1/7

Reducing 3/21 to the lowest terms = 1/7

3:21 is equivalent to 1:7

1:2 = 1/2

1:2 is not equivalent to 1:7

16:112 = 16/112 = 1/7

Reducing 16/112 to the lowest terms = 1/7

16:112 is equivalent to 1:7

Hence, 2:14, 3:21 and 16:112 are all equivalent ratios

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35 PTS. Don’t explain. y=?

Answers

Answer:

180-25-60=95

Step-by-step explanation:

Y=35
Becuase 120 + 25 = 145
180-145=35

Complete the equation of the line who’s y intercept is (0,-1) and slope is 4

Answers

Y=4x-1

The equation of a line is:

Y=mx+c

We are told that the slope is 4 which is also gradient, meaning that M=4

Now we are left with:

Y=4x+c

There are two ways to get C:

1. We know that C represents the y-intercept so immediately we can conclude that C=-1

2. You can work it out by substituting the coordinate for the X and Y value:

-1=4(0)+c

-1=C

So in conclusion, the equation of the line is:

Y=4x-1

im so bad at this help plss

Answers

This is a common type of problem you will get a lot in middle school with some steps I’ll walk you through.

1. To start off, go ahead and point that coordinate the line needs to pass through with an x value of -2 and a y value of -4.
2. Then, look at your slope: -1/2. The - automatically tells you that your slope is going to be from a higher left to a lower right.
3. The -1/2 in your slope tells you that for every 1 unit drop in y value, move your x along to the right by 2 units.
4. With this rule, apply it to the dot you just drew. For instance, one point would be (0,-5) because x increased two as y decreased by one.
5. You will eventually have a series of dots that you can draw the line through. You can even feel free to erase all the little dots you drew (except -2,-4) if you want the line to look nicer.

You got this! :D

enlarge the triangle by scale factor 1.5 using (4,4) as the centre of enlargement

Answers

Answer:

Step-by-step explanation:

The coordinates for the enlargement would be (-5,4) (-5,-2) (-2,-2)

Solving Systems: Graphing Method
y = 4x+6
2x-3y=1

Answers

Answer:

vjgioio

Step-by-step explanation:

Answer:

Therefore x= -1.9

y= -1.6

Find the midpoint of A and B has coordinates (2,9) and B has coordinates (7,4)

Answers

Answer:

The midpoint is,

(4.5, 6.5)

Step-by-step explanation:

Here, we want to find the midpoint between the two points

mathematically, we use the midpoint formula here

We have this as;

m = (x2+ x1)/2, (y2+ty1)/2

where (x1,y1) = (2,9)

(x2,y2) = (7,4)

substituting these points, we have

m = (2+ 7)/2, (9 + 4)/2 = 9/2,13/2 = (4.5, 6.5)

Someone help please hurry !!! ASAP

Answers

Answer:

it's -4

Step-by-step explanation:

hope it helped!!!!!!

Answer:

-4

Step-by-step explanation:

The answer will be the same as a positive square root, just add a negative.

How much does a cat way on the moon

Answers

Answer:

Since weight is directly dependent on the acceleration of gravity, things on the Moon will weigh only 16.6% (≈ 1/6) of their weight on Earth.

Step-by-step explanation:

Being that the moon has a gravitational force of 1.622m/s2, we multiply the object's mass by this quanitity to calculate an object's weight on the moon. So an object or person on the moon would weigh 16.5% its weight on earth. Therefore, a person would be much lighter on the moon.

have a nice day /night\

may i please have a branlliest

Complete the square to write each equation in vertex form. Then, state whether the vertex is a minimum or a maximum and give its coordinates.

Answers

Answer:

a) y(x) = (x + 2)^2 -2

b) minimum

c) (-2, -2)

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

• If a > 0 then vertex is minimum

• If a < 0 then vertex is maximum

Given

y = x² + 4x + 2

(a)

To complete the square

add/ subtract ( half the coefficient of the x- term)² to x² + 4x

y = x² + 2(2)x + 4 - 4 + 2

y = (x + 2)² - 2

(b)

Since a = 1 > 0 then vertex is minimum

(c)

(h, k ) = (- 2, - 2 ) ← coordinates of vertex

4. The graph shows a nonlinear function.

4a. Write the equation of a second function that has a constant rate
of change of 0 and passes through (2, 1). What does its graph
look like?

4b. What is the difference in outputs of the two functions at x = 0? Explain.

4c. How many times do the graphs of the functions intersect? Explain.
d. For inputs between 1 and 0.5, which function has greater outputs? Explain.

4d. For inputs between -1 and 0.5, which function has greater outputs? Explain.

Answers

Answer:

A linear function is a special type of function whose graphs are straight lines (as their name suggests). Let’s look at a straight line and find out what this particular shape of graph tells us about the relationship between the input  and the output  of a linear function.

Step-by-step explanation:

pls mark as brainliest

Does anybody know what the answer to this question?

Answers

The simplified form of the given fraction is, [tex]\frac{1}{x^2y}[/tex].

What is simplified form of the expression?

If a fraction's top and bottom have only the number one in common, then it is expressed in its simplest form. The top and bottom cannot be divided further and remain whole numbers, in other words. The phrase "lowest terms" is another term for the simplest form.

Consider, the given expression

[tex]\frac{(\frac{1}{x^2}-\frac{2}{y} )}{y-2x^2}[/tex]

We have to find the simplified form of the given expression.

Taking cross multiplication of numerator of the above fraction.

[tex]\frac{(\frac{y-2x^2}{x^2y} )}{y-2x^2}[/tex]

Using: [tex]\frac{(\frac{a}{b} )}{c} = \frac{a}{b}*\frac{1}{c}[/tex]

⇒  [tex]\frac{(\frac{y-2x^2}{x^2y} )}{y-2x^2} = \frac{y-2x^2}{x^2y} *\frac{1}{y-2x^2} = \frac{1}{x^2y}[/tex]

Hence, the simplified form of the given fraction is, [tex]\frac{1}{x^2y}[/tex].

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help ! work needs to be shown on both (both, all three, however you’d like to refer it as)

Answers

Answer:

13= 89%

Step-by-step explanation:

89/100= .89= 89%

Answer:

13. 89%

14. 1/10 to each friend

Step-by-step explanation:

13. 89/100 = 0.89 -> 89%

100%/10 friends = 10% per friend, so 1/10 of the cake goes to each friend.

Fredrick can use decims as 0.1, as 0.1 of the cake goes to each friend.

Please help me solve this equation. I need it ASAP! I included the question, and options for answers. Each step needs to have its own rule which I also included a picture of.

Answers

Answer:

reciprocal

Step-by-step explanation:

mark me brainliest pls

Find my number, if the product of my number and 3 is 15 more than the sum of my number and 3

Answers

Answer:

9

Step-by-step explanation:

let the number be X

x multiplied by 3 will be equal to 15 + X + 3

3x = 18+X

2x = 18

x = 9

Answer:

9

Step-by-step explanation:

the diagram shows 2 mathematically similar vases. vase A has height 20cm and volume 1500^3. vase B has volume 2592cm^3. calculate h, the height of vase b.

Answers

The height of vase b is 34.56 cm.

What is volume?

In mathematics, volume is the space taken by an object.

V=pi*r²*h

Here, given that,

vase A has height 20cm =H

and volume 1500^3. =V

And, A & B similar vases.

Again, vase B has volume 2592cm^3 =v

let, h, the height of vase b.

both radius are equal

so, we get,  V/pi*H = v/pi*h

i.e. 1500/20=2592/h

so, h= 34.56 cm

Hence, the height of vase b is 34.56 cm.

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Jennifers math score for third quarter were 78, 89, 93, 73, 99, 87, 92, and 89 what is the range of her scores

Answers

Answer:

26

Step-by-step explanation:

range = [highest number] - [lowest number]

99-73=26

If -11y = -13, then y = 1.2
If -11y = -13, then y = 24
If -11y = -13, then y = -1.2
If -11y = -13, then y = 0.846154...
I don't know yet

Answers

Answer:

A.

Step-by-step explanation:

A = 1.18, but rounded, is 1.2

Answer:

A) -13.2

Step-by-step explanation:

it's the closest one

The library has 1,500 fiction books and 8,500 non-fiction books. What percentage of the books at the library are fiction books?

Answers

15%

If you take fiction plus non fiction it equals 10k books. 1500/10000 is 15%

which operation should be completed first to find the value of the expreesion below 12 + 30 / (6 -3) + 1

Answers

Subtraction (6-3) in parentheses should be first

Given f(x) = 6(1-x), what is the value of f(-5)?

Answers

f(x)=36

Explanation:
when you plug -5 in place of x into the equation, you are left with 6(1-(-5)). Since subtracting a negative is the same as adding a positive, we know that 1+5=6 which leave us with 6(6) which is 36.

Hope that helps! :)

What is the x-coordinate of the solution to the system shown?

3x - y = 6
3x + y = 34

Answers

Answer:

6[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

In this equation I will do the elimination method.

3x-y=6

3x+y=34

6x=40

Simplify

x=6[tex]\frac{2}{3}[/tex].

Check:

3(6.666...)-y=6

20-y=6

-20 from 6

-y=-14

y=14

20-14=6

6=6

3x(6.666...)+y=34

20+14=34

34=34

To begin, we can convert the equations into slope-intercept form:

3x - y = 6 → y = 3x - 6

3x + y = 34 → y = -3x + 34

Next, we plug it in to become an equation with variables on both sides:

3x - 6 = -3x + 34

→ 6x - 6 = 34

→ 6x = 40

→ x = 6 2/3 OR 6.66666

Because the bisector of the vertex angle of an isosceles triangles the bisector of the base, m<BDA = m<CDA =​

Answers

Answer: 90 degrees

Step-by-step explanation:

BD=CD

2(BD)= BC

2


What is another name for the height of a pyramid?
A. Length
B. Width
C. Altitude
O D. Lateral face
SUBMIT

Answers

Answer:

Altitude

Step-by-step explanation:

Find another name for the height of a prism or a pyramid.

Since we know that the height of a prism or pyramid is the perpendicular distance between the two ends of a prism or pyramid.

We can find the height of the pyramid by dropping an altitude from the top of the pyramid to the base of the pyramid.

Note to moderators:

Please don't delete this answer because I'm just trying to help others.

The height of the pyramid is also called the altitude of the pyramid. Since both of these terms represent the same thing, we can use the two terms interchangeably. The correct option is C.

What is pyramid?

A pyramid geometry is defined as a three dimensional object with a polygon as its base and the triangles forms the lateral faces which meet at a point above the base called the apex. The pyramids have different parts and some of these parts have more than one name.

The height of the pyramid indicate the perpendicular distance from the base of the pyramid to the apex of the pyramid. This line segment which is perpendicular to the base and runs from the base to the apex is defined as the altitude of the pyramid.

Based on the shape of the base, the pyramids are of many types like triangular pyramid, square pyramid, etc.

Thus the correct option is C.

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