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
Andrei [34K]
3 years ago
15

Hi can you guys help me know how to explain this?

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0
10 x 25 = 250, well 20 x 25 is just double that, its 10 doubled x 25 so he probably just added it up. repeated addition really helps with times tables. 
You might be interested in
Help me please! i forgot how do this problem.
Dafna11 [192]

Answer: 48 square units

Step-by-step explanation: 45 is 1/8 of 360, so 6 square units times 8 tells you the total area

7 0
2 years ago
Determine the axis of symmetry and the vertex of the given function.<br> y = 2x2 - 12x + 21
mestny [16]

Answer:

the vertex is ( 3 , 3)

Symetric axis‘s equation: x = 3

Step-by-step explanation:

Let‘s name the function ” f ”

f(x) = y = 2x² - 12x + 21

the vertex has coordinates of ( -b/2a , f(-b/2a) )

-b/2a = 12/2(2) = 12/4 = 3

f(-b/2a) = f(3) = 2(3)² - 12(3) + 21 = 3

then the vertex is ( 3 , 3)

the symetric axis has the equation :

x = -b/2a

then

4 0
2 years ago
Which expression is equivalent to -36 - 8−36, 36, minus, 8? Choose 1 answer: Choose 1 answer: (Choice A) A -36+(-8)−36+(−8)minus
nordsb [41]

Answer:

Choice A: -36 + (-8)

Step-by-step explanation:

We want to find the equivalent expression to -36 - 8

The correct option is Choice A.

Choice A is -36 + (-8)

The reason is that the product of the signs + and - is -, i.e.

+ * - = -

Hence, + (-8) is the same thing as -8 and Choice A becomes -36 - 8

8 0
3 years ago
Select all equations that match the solution for this equation: 5(x - 12) = 20
mixer [17]

Answer:

The answer is x=16 so whatever the equations should look like it should be this:

Step-by-step explanation: 5(x-12)=20 5x-60=20 add 60 to 20 and get 5x=80 x=16

5 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
morpeh [17]

Answer:

n>25/3

Step-by-step explanation:


8 0
2 years ago
Other questions:
  • Which expression gives the area of the triangle shown below
    11·1 answer
  • Which is the graph of f(x) = 1/4(4)x
    6·1 answer
  • Find the x-intercepts of the parabola with vertex (-7,45)
    14·1 answer
  • How would an inscribed dodecagon compare to the area of a circle?
    5·1 answer
  • Which of the following is the graph of y = –2(2)x + 2?
    10·1 answer
  • Which statements about the composite figure are true? Check all that apply.
    10·1 answer
  • Five and Six please help
    7·1 answer
  • 0,_,_,2,8/3<br> common difference:
    11·1 answer
  • Help plsssssssssssssssssssssssssssssss
    9·1 answer
  • PLEASE HURRY AND GET THE ANSWER CORRECT I WILL MARK BRAINLIST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!