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Marina86 [1]
3 years ago
11

Which group of number are all perfect squares

Mathematics
1 answer:
Gala2k [10]3 years ago
8 0
C: 9 ( = 3^2), 49 ( = 7^2), 81 ( = 9^2) 

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What is the second law of exponents
Vlad1618 [11]

Answer:

When we divide powers of the same base, this means that we have to do is subtract the exponents. ... In other words, all we would need is to divide two powers that have the same exponent then the subtraction would lead to zero

8 0
2 years ago
Solve the following​
Anastaziya [24]

Answer:

Q1

|a-b| = b-a when a<b

Q2

104159/33000

Step-by-step explanation:

Q1

If a<b then a-b will always be negative.  To get the absolute value, we can take -(a-b) = -a+b = b-a.

Q2

Let x = 3.12789789789...

We isolate the repeating decimal to start after the decimal, so we multiply by 100.

100x = 312.789789789...

We want to multiply by 10 for each digit that repeats (in this case 3), to get the repeating part to the left of the decimal.

100000x = 312789.789789

Subtracting the two...

x(100000-100) = 312789.789789 - 312.789789

99900x = 312477

x = 312477/99000 = 104159/33000

3 0
3 years ago
X = 2y-2<br> 4x-9 = 11<br><br> Step by step please
Alex787 [66]
Answer x=5, y= 3.5

Find y by plugging the x value into the 2nd equation
4(2y-2) -9=11
8y - 8 - 9 =11 combine like terms
8y = 28 divide both sides by 8
y = 3.5

Now find x
Plug your y value into first equation
X = 2(3.5) -2
X= 7-2
X=5

You can check your work by putting your x or y values into the equations

For the first equation
5=2(3.5) -2
5=5

For the second equation
4(5) -9 = 11
20 - 9 = 11
11 =11

4 0
1 year ago
Which equation in point slope form is shown in the graph below
oee [108]

Answer:

D

Step-by-step explanation:

I know that its correct because I got it correct

it should equal to y=-2/7x+13/7

3 0
3 years ago
D. 482 +52<br> Estimate the quotient
kaheart [24]

Answer:

534 is it a division problem or a quotient

Step-by-step explanation:

anyways 482+52

add 2+2+4

add 8+5=13

add 4+1+5

put them together

534

5 0
3 years ago
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