All categories

2 years ago

Solve for x:

Mathematics

1 answer:

777dan777 [17]2 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

If there os 150 capacity and 36 os used what os the remaining percentage

Veseljchak [2.6K]

150 - 36 = 114 os remaining;
114/150 = 0,76 (as a decimal) = 76% (as a percentage);

6 0

2 years ago

A’B’C’ is a dilation image if ABC which is the correct description of the dilation

Sav [38]

Answer:

The dilation is an enlargement

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal and this ratio is called the scale factor

In this problem Triangles A'B'C' and ABC are similar by AA Similarity Postulate

Let

z------> the scale factor

$z=\frac{A'C'}{AC}$

substitute the values

$z=\frac{2+8}{2}$

$z=\frac{10}{2}=5$

The scale factor is greater than 1

therefore

The dilation is an enlargement

3 0

2 years ago

Read 2 more answers

Kiera has $20 in a savings account. The interest rate is 5%

Anuta_ua [19.1K]

Calculation:

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

then, solving our equation

I = 20 × 0.05 × 2 = 2

I = $ 2.00

The simple interest accumulated

on a principal of $ 20.00

at a rate of 5% per year

for 2 years is $ 2.00.

8 0

2 years ago

Find the difference using suitable identity (10.3 × 9.7) – (10.7 × 9.3)

finlep [7]

Answer:

$\small\textrm\red{-------------------------------------------------------------------}$ $\small\textrm\blue{-------------------------------------------------------------------}$ $\small\textrm\green{-------------------------------------------------------------------}$ $\small\textrm\blue{-------------------------------------------------------------------}$ mag sayaw ka nalang

$\small\textrm\green{-------------------------------------------------------------------}$ $\small\textrm\blue{-------------------------------------------------------------------}$ $\small\textrm\blue{-------------------------------------------------------------------}$ $\small\textrm\red{-------------------------------------------------------------------}$

5 0

2 years ago

Pleaseee helppppp !!

PilotLPTM [1.2K]

Answer:

1. -9xy

2. 6ab

3.-8mn

4. 17nx

Step-by-step explanation:

4 0

2 years ago