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
Mandarinka [93]
4 years ago
14

2 cm = 8 km

Mathematics
1 answer:
sertanlavr [38]4 years ago
4 0

Answer:

A. 1 centimeter

Step-by-step explanation:

To solve you could use a proportion, in this case, 2/8=x/4. You can cross multiply to find the value of x. 8x=2*4, then simplify, 8x=8. Finally isolate the variable by dividing by 8. 8x/8=8/8, simplified that equals x=1.

You might be interested in
On a coordinate plane, a parabola opens down with solid circles along the parabola at (negative 3, negative 5), (negative 2, 0),
Svetradugi [14.3K]

The true statement regarding the intervals where the function is increasing and decreasing is option A: The function is increasing from (–∞, 0).

<h3>What is a function?</h3>

A function is defined as a relation between the set of inputs having exactly one output each.

On a coordinate plane, a parabola opens down with solid circles along the parabola at (-3, -5), (-2, 0), (-1, 3), (0, 4), (1, 3), (2, 0), (3, -5).

The domain is all real numbers.

The range is all real numbers.

If for an interval I, when x decreases meanwhile staying in interval I, the function's output increases (or can stay same), then we say that the function is increasing in the interval.

The true statement regarding the intervals where the function is increasing and decreasing is option A: The function is increasing from (–∞, 0).

Learn more about increasing and decreasing functions here:

brainly.com/question/19597265

#SPJ1

5 0
2 years ago
Match each quadratic equation with its solution set.
Marianna [84]

Answer:

( 8 , - 8)  => x² - 55 = 9

( 4 , - 4)  =>  2x² - 32 = 0

(5 , - 5) => 4x² - 100 = 0

(11 , - 11) => x² - 140 = -19

( 3, - 3) =>  2x² - 18 = 0

Step-by-step explanation:

1)

2x^2  - 32 = 0\\\\2(x^2 - 16 ) = 0 \\\\x^2 - 16 = 0 \\\\x^2 = 16 \\\\x = \sqrt {16 }  = \pm 4

x = ( 4 , - 4)

2)

4x^2 - 100 = 0 \\\\4(x^2 - 25 ) = 0\\\\x^2 - 25 = 0 \\\\x^2 = 25 \\\\x= \sqrt{25} = \pm 5

x = ( 5 , - 5 )

3)

x^2 - 55 = 9 \\\\x^2 = 9 +55\\\\x^2 = 64\\\\x = \sqrt{64} = \pm 8

x= ( 8 , - 8)

4)

x^2 - 140 = - 19\\\\x^2 = -19 + 140 \\\\x^2 = 121 \\\\x= \sqrt{121} = \pm 11

x = ( 11  , -11)

5)

2x^2 - 18 = 0\\\\2(x^2 - 9) = 0\\\\x^2- 9 = 0 \\\\x^2 = 9 \\\\x = \sqrt9 = \pm 3

x = ( 3 , - 3)

8 0
3 years ago
Read 2 more answers
Use substitution to solve each system of equations.<br><br>x-2y<br>y=x-2​
Helga [31]

Answer:

-x+4

Step-by-step explanation:

x-2y

y= x-2

x-2(x-2)

x-2x+4

-x+4

3 0
4 years ago
Find the derivative of f(x) = e^x^2
Artist 52 [7]

eu×2x=2xex2

7 0
4 years ago
Which integers between square 30 and square 40<br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sq
anygoal [31]

Answer:

6

Step-by-step explanation:

The only integer whose square is between 30 and 40 is 6.

30 < x^2 < 40.

7 0
4 years ago
Read 2 more answers
Other questions:
  • When we say "split the cost evenly", what are you actually doing?
    14·1 answer
  • television network is about to telecast a new television show. Before a show is launched, the network airs a pilot episode and r
    9·2 answers
  • Calculate the slope of the line that contains the points: (2,-3) and (6,-3)
    13·1 answer
  • If 2+2 is fish 3+3 is 8 and 4+4 is a window then what is 7+7
    10·2 answers
  • Do all parallelograms have reflectional symmetry? explain your reasoning?
    5·1 answer
  • Given the function f(x) = 6x2 – x, then what is f(-x) as a simplified<br> polynomial?
    15·1 answer
  • Three scatterplots are shown, along with their best-fit lines and correlation coefficients, r1, r2, and r3. Choose the correct s
    13·1 answer
  • What value represents the horizontal translation from the graph of the parent function (x)2 to the graph of the function g(x)=(x
    12·2 answers
  • Write the angle measurements for a, b, c​
    11·1 answer
  • Subtract -10 from 100​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!