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SashulF [63]
3 years ago
12

Which choice is equivalent to the expression below?​

Mathematics
1 answer:
Olegator [25]3 years ago
6 0

Answer:

\text{A. 8}i

Step-by-step explanation:

The math constant i represents \sqrt{-1}. Because \sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}, we can rewrite the equation given the problem as \sqrt{-64}=\sqrt{64}\cdot \sqrt{-1}=\boxed{8i}.

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natta225 [31]
(3/4) /(4/5) = x/1
cross multiply
4/5x = 3/4
x = 3/4 * 5/4
x = 15/16 tons of pebbles are needed to cover the entire garden
5 0
3 years ago
Read 2 more answers
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Ghella [55]

Answer:

Follows are the solution to the given point:

Step-by-step explanation:

In point a:

¬∃y∃xP (x, y)  

∀x∀y(>P(x,y))  

In point b:

¬∀x∃yP (x, y)

 ∃x∀y  ¬P(x,y)

In point c:

¬∃y(Q(y) ∧ ∀x¬R(x, y)) \equiv  ∀y(> Q(y) V ∀ ¬ (¬R(x,y)))

∀y(¬Q(Y)) V ∃xR(x,y) )

In point d:

¬∃y(∃xR(x, y) ∨ ∀xS(x, y))  

∀y(∀x>R(x,y)) \wedge ∃x>s(x,y))

In point e:

¬∃y(∀x∃zT (x, y, z) ∨ ∃x∀zU (x, y, z))

∀y(∃x ∀z)>T(x,y,z) \wedge ∀x ∃z> V (x,y,z))  

8 0
3 years ago
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Mkey [24]

4^{2} = 16

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always remember PEMDAS

3 0
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harkovskaia [24]
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(Hopefully this is correct)
4 0
2 years ago
A student says that a correlation coefficient of −0.93 indicates that the two quantities of a data set have a weak correlation.
zloy xaker [14]

Answer:

Step-by-step explanation:

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8 0
3 years ago
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