3 years ago

Simplify radical -81

Mathematics

1 answer:

Solnce55 [7]3 years ago

5 0

Step-by-step explanation:

-81

$\sqrt{ - 1} \: \times \sqrt{81}$

$\sqrt{ - 1} = i$

$i \times \sqrt{9 {}^{2} }$

$i \times 9$

$9i$

You might be interested in

Pplllllzz help where should they goo ill make u brainlist and give u a thank you and I'll get points

stealth61 [152]

Answer:

5/5=1

2/8 put it right after the 0

3/6=1/2

1 1/3 put it behined the 1

-1/3 put it between the 0 and -1/2

1 9/10 put it in front of 2

7/4 put it in front of 2

Step-by-step explanation:

hope that helps

8 0

2 years ago

FInd the slope of these graphs plz :(

Lerok [7]

Answer:

1. Slope =1.5

2. Slpe=20

Step-by-step explanation:

The first one

150/100=1.5

Second one

1/0.2=20

7 0

2 years ago

If a = 12 and B = 43 degrees, find c.

ludmilkaskok [199]

Answer:

Step-by-step explanation:

You subtract 43 from 12 you get 31 then you add 43 and 31 you get 74 bye

8 0

3 years ago

Read 2 more answers

Sarah has a make your own candle set that includes a block of wax in the shape of a rectangular prism. The block of wax has a le

slavikrds [6]

Answer:

She doesn't have enough wax to make 4 candles, but she does have enough to make 3 whole candles

Step-by-step explanation:

Please refer to the attached image for explanations

7 0

3 years ago

the equation for simple interest is I= p r t (I=interest, p=principal, r=rate, t=time) Find the simple interest paid to the near

Marina CMI [18]

Answer:

Simple Interest = $315

Step-by-step explanation:

The formula for Simple Interest

I = P× R × T

I=interest, p=principal, r=rate, t=time

P = $1750

R = 12% = 0.12

T = 1.5 years

I = $1750 × 0.12 × 1.5

I = $315

8 0

3 years ago