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Karo-lina-s [1.5K]
3 years ago
9

Show working please!

Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0
You do -2 plus 4. Answer is 2.
Then do 2-(-2) which is 0.
The final answer is 2.
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What does radical form mean?
PtichkaEL [24]
Is it radical or radian
5 0
3 years ago
Which of the following is a rational number
denis-greek [22]

Answer:

so it will be -55

Step-by-step explanation:

\sqrt{83} is not a rational number

-55 is a rational number

\sqrt{96} is not a rational number

π is not rational number

Let me know if i'm right :(

5 0
2 years ago
What numbers go in the sqaures?
givi [52]

On the first two pairs you need to write 3 and 4, and 6 and 2.

On the second page we have:

1) 4

2) 2 and 7

3) 1

4) 1 and 3

5) 3.

<h3>What numbers go in the squares?</h3>

a) Here we just need to use scientific notation.

For the first case, the numbers that go in the exponent boxes are the same ones that go in the example, which are 4 in the first one and 2 on the second one.

Then, if we want the difference to be 29,400, then we can use 3 on the first box and 6 on the second. OR, because this is an absolute value, we can just invert those.

This is:

6 and 2 on the first two squares, and 3 and 4 on the second two squares.

b) Here we want to make perfect squares.

For example, on the first case we have:

x*2*2

We need to find the value of x such that this is a perfect square. Notice that we can rewrite this as:

x*2*2 = x*4

Then it only is a perfect square if x = 4.

For the second case:

14*x*y

This is only a perfect square if x*y = 14

Then we can use x = 2 and y = 7.

With similar reasoning, on the next box we have:

2*8*x

2*8 = 16, is already a perfect square, so x = 1.

The next one is:

x*3*y

Here we can define x = 3 and y = 1, so we get a perfect square.

Finally:

3*x

Here the only possible value of x is 3.

If you want to learn more about perfect squares:

brainly.com/question/1538726

#SPJ1

5 0
2 years ago
I dont understand how to do this please help me i want to get a good grade​
horsena [70]

Answer:

y =20

Step-by-step explanation:

you have to get the y by itself so what you do on one side you do to the other. subtract 12 on both sides and you get y=20

7 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve x^2-4x+3. Show your work. Then describe the solution
mars1129 [50]
Quadratic formula is x=(-b+-sqrt(b^2-4ac))/(2a)

a= 1, b=-4, and c=3

Therefore, x=(-(-4)+-sqrt((-4)^2-4(1)(3))/(2(1))

Solve for both the plus and minus equations; the answers will be the roots to the quadratic equation.
4 0
3 years ago
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