All categories

3 years ago

Solve for x:

Mathematics

1 answer:

777dan777 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

x^2+120=0 can be rewritten as x^2 = - 120. Taking the square root of both sides, we get x = plus or minus i*√120 = plus or minus i*√4√30, or

x = plus or minus i*2√30

So the correct answer choice here is "None of the above."

You might be interested in

How should I choose stocks?

Art [367]

One way to choose stocks is by customers demand

4 0

3 years ago

Solve each proportion. 2/4=4/p-3 pls help

eduard

Answer:

$p=\frac{8}{7}$

Step-by-step explanation:

$\frac{2}{4} = \frac{4}{p} - 3$

$\frac{1}{2} = \frac{4}{p} - 3$ (simplify)

$\frac{1}{2}+3 = \frac{4}{p} - 3+3$

$\frac{1}{2}+3 = \frac{4}{p}$ (Add 3 to both sides)

$\frac{7}{2}= \frac{4}{p}$ (simplify)

$\frac{7}{2}p= \frac{4}{p}*p$

$\frac{7p}{2}=4$ (Multiply both sides by p)

$\frac{7p}{2}*2=4*2$

$7p=8$ (Multiply both sides by 2)

$\frac{7p}{7}=\frac{8}{7}$

$p=\frac{8}{7}$ (Divide both sides by 7)

7 0

3 years ago

Together, Bobs shoes weigh about 1 kilograms. Each shoe weighsabout how many grams.

kolbaska11 [484]

Divide 1 kilogram by how much shoes are there.

8 0

3 years ago

Read 2 more answers

If f(x) = x2 – 2x, find: f(6)=

creativ13 [48]

Answer:

Step-by-step explanation:

When x=6

f(6) =(6)2-2(6)=12-12=0

8 0

2 years ago

Read 2 more answers

Lim. √2x -√3x-a/√x-√a x approaches a

Ludmilka [50]

Answer: $\sqrt{2}a-\sqrt{3}a-2\sqrt{a}$

Step-by-step explanation:

$\lim _{x\to \:a}\left(\sqrt{2}x-\sqrt{3}x-\frac{a}{\sqrt{x}}-\sqrt{a}\right)$

$=\sqrt{2}a-\sqrt{3}a-\frac{a}{\sqrt{a}}-\sqrt{a}$

$=\sqrt{2}a-\sqrt{3}a-2\sqrt{a}$

3 0

3 years ago