1. Which number is a perfect square? A 4 B 6 C 8 D 10

Mathematics

1 answer:

Vladimir [108]2 years ago

5 0

Answer:

Step-by-step explanation:

when you multiply a number by itself, therefore you have to multiple 2twice

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<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Csqrt%7Bx%20%7B5%7D%5E" id="TexFormula1" title="y = \sqrt{x {5}^" alt="y = \s

Sedaia [141]

Y=y to the third and multiple

6 0

2 years ago

Select all that appear in the DOMAIN {(-8,-12),(4,-8), (2, -10),(-10.-16) -16 -12 -10 -8 -2-4

Yuri [45]

Domain of a set of ordered pairs

We know the domain is the set of all x when is represented by ordered pairs: (x, y)

In this case {(-8,-12),(4,-8), (2, -10),(-10.-16) } we can observe that there are four x (the first number of each pair):

Domain = { -8, 4, 2, -10}

<h2>Domain = {-10, -8, 2, 4}</h2>

3 0

9 months ago

Solve for j. 144j2 + 21 = 85

Sphinxa [80]

Answer:

2/3

Step-by-step explanation:

I assume the 2 after the j is a square. So, we bring the 21 to the other side by subtracting it from both sides, getting 144j^2=64. Now we divide to get 64/144 = j^2. Make sure NOT to simplify it, it's perfect right now. The square root of that is $\sqrt{64}/ \sqrt{144}$ , or 8/12, which we can now simplify to 2/3. Hope this helps!