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
r-ruslan [8.4K]
3 years ago
6

Help!!!!!!!!!!!!!!!! on 80 and 81

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
8 0
0.22 is the correct answer

SIZIF [17.4K]3 years ago
5 0
The answer for 80:
12 cent

The answer for A:
0.81

I hope this helps:)

Oh,

If this is a test, please try your hardest. I gave you  the answers for the two you had asked above, but your teachers would appreciate if you didn't look up the answers and instead just tried:)
You might be interested in
Help ASAP pls :) brainly to whoever has the right answer first :D
Fed [463]

Answer:

0.02 (rational)

2 (rational)

Square root of 2 (irrational)

Square root 1/2 (irrational)

Step-by-step explanation:

Rational numbers are numbers that can be in form of a/b such that a and b are not zeros. In other words, a and b are integers ranging from 1 to infinity.

Conversely, irrational numbers are numbers that are endless and are non repeating digits after decimal point.

Thus, from the questions above;

0.02 =   \frac{2}{100}  = rational \: number

2 =  \frac{2}{1}  = rational \: number

\sqrt{2}  = 1.41421356 = irrational \: number

\sqrt{ \frac{1}{2} }  = 0.70710678 = irrational \: number

6 0
3 years ago
What is the quotient (7x^(2))/(2x+6)-:(3x-5)/(x+3)
Irina18 [472]

Answer:

5.525

Step-by-step explanation:

1. (7x^(2))/(2x + 6) -:(3x - 5) / (x + 3) Solve Bold

   (7x^(2)) / (2x + 6) -:(3x - 5) / (x + 3)

2. 49x / 8x - (-2x) / 3x Solve Bold

   49x/8x-(-2x)/3x

3. 6.125 - .6 Solve Bold

Answer: 5.525

5 0
2 years ago
Decide whether each table could represent a proportional relationship. If the
Ymorist [56]

Answer:

Step-by-step explanation:

If given tables in the picture show the proportional relationship,

Number of wheels (w) ∝ Number of buses (b)

w ∝ b

w = kb

Here, k = proportionality constant

k = \frac{w}{b}

Number of buses (b)           Number wheels (w)             Wheels per bus (\frac{w}{b})

          5                                           30                               \frac{30}{5}=6              

          8                                           48                               \frac{48}{8}=6

         10                                           60                               \frac{60}{10}=6

         15                                           90                               \frac{90}{15}=6

Here, proportionality constant is 6.

Similarly, If number of wheels (w) ∝ Number of train cars (t)

w = kt

Here, k = proportionality constant

k = \frac{w}{t}

Number of train cars(t)          Number of wheels(w)     Wheels per train car (\frac{w}{t})

              20                                        184                           \frac{184}{20}=9.2

              30                                        264                           \frac{264}{30}=8.8

              40                                        344                           \frac{344}{40}=8.6

              50                                        424                           \frac{424}{50}=8.48

Since, ratio of w and t is not constant, relation between number of wheels and number of train cars is not proportional.

5 0
2 years ago
Help me check my answer!
astra-53 [7]

Step-by-step explanation:

ah, here you go.

come on, now. you know this now ...

again, mutually exclusive attributes in the table (no overlap here) allow us to add the numbers for a total :

4+2+12+10 = 28 students in total.

how many of those 28 fulfill our desired criteria (has a brother) ?

well, it is the sum of the column "has a brother", as it does not matter, if there is also a sister or not.

so, it is 4 + 12 = 16

therefore, the probability to pick a student randomly, who has a brother is

16/28 = 4/7 = 0.571428571...

5 0
1 year ago
Which polynomial is written in descending order?
Anarel [89]

The ascending or descending order of a polynomial is determined by the increasing or decreasing power of variable “x” respectively.

<span>The question is to find about the polynomial in descending order, so in this case, the 3rd option is correct, i.e. 4x^2 – 3x + 9 or 4x^2 – 3x^1 +9x^0. The power of “x” decreasing from 2 to 1 and then finally to 0.</span>

4 0
3 years ago
Other questions:
  • 5^n-3= 1/25 What is the value of n
    15·1 answer
  • the change for ice skating is $3 for the skate rental and $2 per hour to skate . how much will you pay if you skate for
    7·2 answers
  • Do not change the order of the numbers. You may put two numbers together to form a two-degit number.
    6·1 answer
  • Consider the sequence: 3, 8, 13, 18, 23, ...The recursive formula for this sequence is:an = an-1 + 5In a COMPLETE sentence, expl
    6·1 answer
  • 1. reduce 15/40
    9·1 answer
  • Alison’s age is 16 more than half of Sam’s age. Using S to represent Sam’s age, write an expression that represents Alison’s age
    8·1 answer
  • 3/4 divided by 6 and 2/3
    5·2 answers
  • Solve the equations. Make conclusion. <br> 3|x+12|=6
    13·2 answers
  • What is the area of the trapezoid in the coordinate plane?​
    14·1 answer
  • You roll a die 4 times. What is the probability of rolling a 3 on all 4 times?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!