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romanna [79]
3 years ago
8

Suppose a is an irrational number and b/c is a rational number. Can their sum be rational? Explain your

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
4 0

Answer:

it can but doesnt always have to be because it can be a commplex decimal and not a fractionn

Step-by-step explanation:

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PPLEASE HELP!!!!! WHAT IS THE INITIAL VALUE MEAN FOR THIS GRAPH/FUNCTION
Rudiy27
Amount saved:50I60I70l80l   AND ON......
......weeks......:0..I1...l2..l3..l                          ..........AND ON 
amount saved =x
weeks=y
after every y+10=x
6 0
3 years ago
Which expression is equivalent to a2 + 2a – 8?
marshall27 [118]

Answer:

D

Step-by-step explanation:

(a+4)(a-2)=a^2+2a-8

a*a=a^2

a*(-2)=-2a

a*4=4a

4*(-2)=-8

a^2-2a+4a-8=a^2+2a-8

4 0
3 years ago
What is the question?
max2010maxim [7]

Answer:

(23, 4)

Step-by-step explanation:

If we use substitution, we need to rewrite the 2nd equation so we can substitute it into the first.

Step 1: Rewrite 2nd equation

x = 5y + 3

Step 2: Substitution

2(5y + 3) - 5y = 26

Step 3: Distribute

10y + 6 - 5y = 26

Step 4: Combine like terms

5y + 6 = 26

Step 5: Isolate <em>y</em>

5y = 20

y = 4

Step 6: Find <em>x</em>

x - 5(4) = 3

x - 20 = 3

x = 23

And we have our final answer!

7 0
3 years ago
Read 2 more answers
Alonzo wrote the equation x = 2+4y-5. Which equation is equivalent?
Rainbow [258]

Consider the equation x = 2+4y-5, it can be expressed as x = 4y-3.

Now, we have to write the equivalent equation.

Since, Equivalent equations are those equations which have exactly same solution. We can say that the two equations are equivalent if solution of one equation is the solution of other equation.

So, consider the equation x = 4y -3

Equivalent equation can be obtained by multiplying the given equation by any number say '2'.

Multiplying both sides of the given equation by '2'.

x = 4y-3

2 \times x = 2 \times (4y-3)

2x = (2 \times 4y)-( 2 \times 3)

2x = 8y-6 is the required equivalent equation.

6 0
2 years ago
The length of a rectangular deck is 4 times it’s width. If the deck’s perimeter is 30ft, what is the deck’s area?
ioda

Try this solution (note, this is not the shortest way):

1. if the given length is 'l' and the width is 'w', then according to the condition 4*l=w;

2. according to the condition the perimeter is 30 ft. Formula of the perimeter is P=2(l+w), then 2(l+w)=30;

3. if to substitute '4*l' instead of 'w', the formula of the perimeter (from item no. 2) will be as 2(4*l+l)=30 or 10*l=30 ⇒ l=3 ft. The length is 3 ft.!

4. if l=3 ft., then w=4*3=12 ft. The width is 12 ft.!

5. Area is

A=w*l; A=12*3=<u>36 ft²</u>

7 0
3 years ago
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