4 years ago

Please help with the square roots

Mathematics

2 answers:

yuradex [85]4 years ago

8 0

Step-by-step explanation:

-√81=-√(9)²=-9

A number inside a Square root cannot ne negative. So, the second one is not a real no.

Mashcka [7]4 years ago

3 0

Answer:

$- \sqrt{81} = - 9 \\ \sqrt{ - 25 = - 5}$

Step-by-step explanation:

-81/9 9+9+9+9+9+9+9+9+9(81)

-9

-25/5 (5+5+5+5+5(25)

-5

You might be interested in

Anyone know how to do this?

almond37 [142]

I would personally say a because the plusses mean up and over and minus means left and down

4 0

3 years ago

2/7+x=17/5<br>please solve this

kondor19780726 [428]

Step-by-step explanation:

x=17/5 - 2/7

LCM is 7*5=35

x= (17*7-2*5)/35=109/35

7 0

3 years ago

A birds nest is 12 ft above the ground. A moles den is 12 inches above the ground. What is the difference in height of these two

Gennadij [26K]

B because there are 12 inches In one ft so the answer would be B

5 0

4 years ago

Read 2 more answers

Why shouldn’t a small business owner deposit checks, cash, and coins totaling $55 and then receive $55 in cash in the same trans

Butoxors [25]

Answer: because it’s not good to start like that

Step-by-step explanation:

4 0

4 years ago

X^2+y^2=25<br> y=2x+1<br> Solve by using formula

zlopas [31]

Answer:

Easy graph on desmos and find point of intersection and there

Step-by-step explanation:

6 0

3 years ago