1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex787 [66]
3 years ago
7

2. The figures in each pair are similar. Find the value of each variable. Show your work.

Mathematics
2 answers:
Gelneren [198K]3 years ago
8 0
Line up the shapes.
a.  2/8 = x/16

b.  12/4 = 18/x = y/8

c.  6/4=8/y=7/x

a.  Cross multiply. 8x = 2*16
8x = 32
divide both sides by 8
x = 4

b.  12/4 = 18/x
cross multiply
12x = 18*4
12x = 72
divide both sides by 12
x = 6

12/4 = y/8
cross multiply
4y = 12*8
4y = 96
divide both sides by 4
y = 24

c.  6/4 = 8/y
cross multiply
6y = 8*4
6y = 32
divide both sides by 6
y = 32/6 = 16/3

6/4 = 7/x
cross multiply
6x = 7*4
6x = 28
divide both sides by 6
x = 14/3
Olegator [25]3 years ago
4 0
I hope this helps you option C Y = 16/3

You might be interested in
Which of the following options is a root of the function? f(x) = (3x + 5) (x2 - 6x + 9)2
Alika [10]

Answer:

The roots of the function are x = -5/3 and 3. Select these.

Step-by-step explanation:

The roots of the function are the solutions to the function. They are also called the x-intercepts or zeros. To find them, factor the function completely and solve using the zero product property.

f(x) = (3x+5)(x2-6x+9)2 becomes f(x) = (3x+5)(x-3)^2

Set each factor equal to 0 and solve for x.

(3x+5)=0

3x = -5

x = -5/3

(x-3)^2 = 0

x - 3=0

x = 3

3 0
3 years ago
A circular lampshade with a diameter of 14 inches has a length of wire that goes around it exactly one time. How many inches of
asambeis [7]
Diameter = 2*radius
14/2=7
Radius is 7in"
Circumference of circle formula: 2pi(radius)
2pi(7)= 43.98in of wire required so it can wrap around lamp exactly once.
5 0
3 years ago
(5x^2-4X + 7) - (4x + 2)
DanielleElmas [232]
5x’2-4x+7-4x-2
We add the two 4
5x’2-8x+7-2
5x’2-8x+5
The answer is
5x’2 -8x +5
3 0
2 years ago
Which of the following functions have only one point that is not in the domain? Select all that apply. (There are 2 answers)
densk [106]

Answer:

  B.  f(x) = 3/(x^2 +2x +1)

  E.  f(x) = 5/(3+x)

Step-by-step explanation:

The above functions have denominators that are zero at one point. For B, that point is x=-1; for E, that point is x=-3. When the denominator is zero, the function is undefined, so the corresponding x-value must be excluded from the domain.

__

As written, choice D also qualifies. This is because the function written in the answer list here is ...

f(x)=\dfrac{1}{x^2}+5x+4

It will be undefined for x=0.

_____

<em>Comment on writing rational functions</em>

When the division symbol (/ or ÷) is used with a denominator that is a product or sum, that product or sum must be enclosed in parentheses. When the expression is typeset, the division bar acts as a grouping symbol. When the expression is written in text, a grouping symbol, such as parentheses, must be added.

3 0
3 years ago
What’s the simplified form of -3+7–3r–12
VashaNatasha [74]

Answer:

-3r-8

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • NEED HELP ASAP!!!!<br><br> How many square feet of outdoor carpet will we need for this whole?
    7·2 answers
  • Micah sketches the graph below to represent a scenario his teacher gave him.
    8·2 answers
  • Need help asap :) they said the text was too short so don't mind this
    5·2 answers
  • What type of angle is mabc=170
    6·1 answer
  • A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet.
    10·1 answer
  • What is the function written in vertex form?
    11·1 answer
  • Need help with this..
    12·1 answer
  • Peter received a trophy at the state math competition. His trophy is in the shape of a square pyramid and is covered in wrapping
    10·1 answer
  • Simplify the following<br>(4x + 3) (5x + 2) ​
    13·2 answers
  • The area of a rectangle is 2x^2-11x+15 square feet. The length of the rectangle
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!