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Travka [436]
3 years ago
12

Is the number rational or irrational? Explain. A. -38 B. 400 C. 2 3 27

Mathematics
1 answer:
Alik [6]3 years ago
6 0
A.  No, because -38 isn't a fraction.

2, No because 400 is a real number.

3. Yes because fractions, decimals, and percents are rational numbers.


hope that helped
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Help ASAP please!! Thank you!!
Lady_Fox [76]

Solution for the system of linear equations is (4, - 3)

<u>Step-by-step explanation:</u>

Step 1:

Given system of equations

x - 3y = 13 -------- (1)

2x + 4y = - 4 ----- (2)

Step 2:

Multiply eq(2) with 2 to make coefficients of x equal.

2x - 6y = 26 ------ (3)

Step 3:

Subtract eq(2) from eq(3)

⇒ - 10y = 30

⇒ y = -3

Step 4:

Find value of x by substituting value of y in eq(1)

⇒ x - 3 × (-3) = 13

⇒ x + 9 = 13

⇒ x = 4

7 0
3 years ago
Am I correct? Please correct me if I am incorrect, thank you
velikii [3]
No, I don't think so
7 0
3 years ago
Add the equations.3x-y=-5<br> 7x+y=15
Alisiya [41]

Step-by-step explanation:

it is like a regular addition of numbers. you add the different positions.

3x + 7x = 10x

-y + y = 0

-5 + 15 = 10

so, D. is the right answer : 10x = 10

7 0
2 years ago
Geometry
VMariaS [17]

A point P on the line segment GK may be parametrically represented as

P = (1-t)G + tK

t is a real parameter which controls where on the segment P is.  t=0 means P=G, t=1 means P=K.  We're interested in the t that gives a 3:2 ratio for PG:PK.  That's closer to K so t>1/2.   t=3/(3+2) = 3/5.

P=(1-3/5)(1,2) + (3/5)(8,12) = (2/5,4/5)+(24/5,36/5)=(26/5,40/5)=(26/5,8)

Answer: (26/5, 8)


3 0
3 years ago
Read 2 more answers
How do I found a scale factor of a scale copy?
love history [14]

Answer:

first you have to look at one of the sides of the scaled copy. If they are divisible by the numbers in the original shape, then try and see if the others sides of the scaled copy are scaled by the same factor. If they are, then they are a scaled copy.

Step-by-step explanation:

6 0
3 years ago
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