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
DiKsa [7]
3 years ago
10

Find decimal notation for this number : 21/40  

Mathematics
2 answers:
Dimas [21]3 years ago
5 0
2 ways

1. 21 divided by 40 = 0.525

OR

2. 21/40 x 2.5/2.5= 52.5/100 = 0.525
Happy to Help!
Juli2301 [7.4K]3 years ago
3 0
1/40 = .025, just multiply this by 21 and you have your answer
.525
You might be interested in
I really need help quickly please!!!!
Vladimir [108]

Answer:The third one is!!

Step-by-step explanation:

The commutative property of addition says that changing the order of addends does not change the sum. Here's an example: 4 + 2 = 2 + 4 4 + 2 = 2 + 4 4+2=2+4

5 0
3 years ago
Read 2 more answers
Can someone help me with this i have been trying for hours and i actually got the wrong answer so can you help me understand by
kap26 [50]

Answer:

C

Step-by-step explanation:

We are given that FGH is a triangle, which means that...

Angle F + Angle G + Angle H = 180

Start by substituting the given angle measurements into the equation:

4x+2+13x-7+3x+5=180

Combine like terms

20x=180

Divide both sides by 20 to isolate x

x=9

Plug 9 back in for x to solve for each angle

Angle F = 4(9)+2=36+2=38

Angle G = 13(9)-7=117-7=110

Angle H = 3(9)+5=27+5=32

7 0
2 years ago
Read 2 more answers
In 2014, the population of China was 1.39 billion. Compare China’s 2014 population to the world population with a ratio. Write y
pychu [463]

Answer:

Faction of population = 1.39 / 7.2

Percentage of population = 19.3% (Approx.)

Step-by-step explanation:

Given:

China's population in 2014 = 1.39 billion (Approximately)

Find:

Compare China's population to world population

Computation:

World's population in 2014 = 7.2 billion (Approximately)

Faction of population = China's population in 2014 / World's population in 2014

Faction of population = 1.39 / 7.2

Percentage of population = [China's population in 2014 / World's population in 2014]100

Percentage of population = [1.39/7.2]100

Percentage of population = [0.193]100

Percentage of population = 19.3% (Approx.)

6 0
3 years ago
A=3.14r^2 and d=12 A=?
zvonat [6]

\huge\boxed{113.04}

Diameter (d) is equal to twice the radius (r). So, find the radius by dividing \frac{12}{2}. The radius, or r, is 6.

Substitute in the value. A=3.14*6^2

Follow the order of operations and solve the exponent first. A=3.14*36

Multiply. A=\boxed{113.04}

4 0
3 years ago
Which equation could generate the curve in the graph below?
dimulka [17.4K]

Answer:

The answer is option 1.

Step-by-step explanation:

In order to find the equation, you have to apply Discriminant Law, D = b² - 4ac. When D < 0, the equation has no real roots (no x-intercept). When D = 0, it has 2 and equal roots (1 x-intercept). When D > 0, it has 2 distinct roots (2 x-intercept).

Option 1,

y = 3 {x}^{2}  - 2x + 1

D =  {( - 2)}^{2}  - 4(3)(1)

D =  - 8

D < 0

Option 2,

y = 3 {x}^{2}  - 6x + 3

D =  {( - 6)}^{2}  - 4(3)(3)

D = 0

Option 3,

y = 3 {x}^{2}  - 7x + 1

D =  {( - 7)}^{2}  - 4(3)(1)

D = 37

D > 0

Option 4,

y = 3 {x}^{2}  - 4x - 2

D =  {( - 4)}^{2}  - 4(3)( - 2)

D = 40

D  > 0

As you look at the graph, the curve does not meet x-axis so the discriminant must be less than 0.

7 0
3 years ago
Other questions:
  • HELP PLEASE!!! I'm desperate!!
    12·1 answer
  • jess wants to make cupcakes. To make cupcakes, she needs 3 1/4 cups of flour per batch of cupcakes. If Jess has 57 cups of flour
    5·2 answers
  • gracie bought a book for $8.98, a pen for $3.27, and a ruler for $1.50. if the sales tax is 8%, what did she spend?
    15·1 answer
  • If ΔABC has vertices A (3, –1), B (2, 1), and C (5, 3), find vertices of its image ΔA′B′C′ after dilation with a scale factor of
    5·1 answer
  • Here are the ingredients needed to make 8 pancakes.
    6·2 answers
  • H M M M M M MMmMmMmMmmMmMm
    13·1 answer
  • 16 cm
    14·1 answer
  • If 4^(3x-2)=4^(x+1), then x=
    7·1 answer
  • Help please im not good at math
    12·1 answer
  • Which expression is equivalent to 45.1+3.3?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!