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boyakko [2]
4 years ago
14

Numbers like 7.478478... and 2.3565656... are rational or irrational. Give reason .

Mathematics
1 answer:
MrMuchimi4 years ago
6 0
These numbers are irrational because they cannot be written in the form: \frac{x}{y}.

Only rational numbers can be written in the ratio form.
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Factor the expressions and write the equivalent expression<br>1) 20h-5<br>2)15r+35<br>3)-4p+10
MrRa [10]

Answer:

1) 5 ( 4h - 1 )

2) 5 ( 3r + 7 )

3) 2( -2p +5 )

Step-by-step explanation:

For no. 1 you have to find a <u>common factor (</u>a number that divides into both 20 and 5) which is 5 because 20 divided by 5 is 4 and 5 divided by 5 is 1. so you have to do 20h divided by 5 which is 4h (don't forget the h ! ) and you do -5 divided by 1 which is -1. Remember when you do any multiplying or dividing questions with negatives and positives :

minus + minus = minus  (-5*-6 = -30)

positive + positive = positive (5*6 = 30)        * equals multiplacation by the way

minus + positive = minus (-5*6 = -30)

positive + minus = minus (5*-6 = -30)

hope this helped xx

8 0
3 years ago
What is the first operation used to evalute: 19-3x4+9÷9+7
-Dominant- [34]

You would use PEMDAS. So there are no P (parenthesis) so we move onto E (exponents). Since there are none of that we move onto M (multiplication) which is shown with (3 x 4). So that would be our first operation.

8 0
3 years ago
Read 2 more answers
-1x= -8-2x<br><br> what is x <br> pls i need help
UkoKoshka [18]

Answer:

x = -8

General Formulas and Concepts:

Order of Operations: BPEMDAS

Step-by-step explanation:

<u>Step 1: Define</u>

-1x = -8 - 2x

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Simplify:                                 -x = -8 - 2x
  2. Add 2x on both sides:          x = -8

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                         -1(-8) = -8 - 2(-8)
  2. Multiply:                             8 = -8 + 16
  3. Add:                                   8 = 8
3 0
3 years ago
Read 2 more answers
Mason, a hardwood flooring installer, needs to calculate the amount of hardwood flooring needed to cover a floor that's 33⁄4 yar
Aleksandr-060686 [28]

Answer:

20 5/8 yd^2

Step-by-step explanation:

width = 3 3/4 yd

length = 5 1/2 yd

First change both measurements to fractions.

3 3/4 = 3 + 3/4 = 12/4 + 3/4 = 15/4

5 1/2 = 5 + 1/2 = 10/2 + 1/2 = 11/2

area = length * width

area = 15/4 yd * 11/2 yd

area = (15 * 11)/(4 * 2) yd^2

area = 165/8 yd^2

165/8 = 20 remainder 5

area = 20 5/8 yd^2

3 0
4 years ago
Which answer choice would be correct and why?
guajiro [1.7K]

Answer:

EC, DE, CD

Step-by-step explanation:

∠D=34°    ∠C=47°     ∠E= 180-34-47=99°

∠D < ∠C < ∠E

By the theorem: If one angle in a triangle is larger than another angle in a triangle, then the side opposite the larger angle will be longer than the side opposite the smaller angle.

EC < DE < CD

5 0
3 years ago
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