1 year ago

What is the principal square root of 81? A. 9 B. -3 C. 3 D. -9

Mathematics

2 answers:

guajiro [1.7K]1 year ago

7 0

Answer:

I think A is the correct answer

Step-by-step explanation:

LenKa [72]1 year ago

5 0

Answer: The principal square root of 81 is 9

Step-by-step explanation:

You might be interested in

Question 3 of 10 What is the slope of the line shown below? C O A. 5 5 (3,7) B. 2 O D.-2

scoundrel [369]

Slope = Y2-Y1/X2-X1 = 7-(-3)/3-(-2)= 10/5 = 2

8 0

2 years ago

Read 2 more answers

A page in Johanie’s workbook is torn, and one of the questions is cut off. She can read only the first part of the question:

kirill115 [55]

B quadrant ll or quadrant lll

5 0

2 years ago

Simplify 7m - 11n - n + 5m.

goblinko [34]

Answer:

The simplified form of the given expression is 12(m -n).

Step-by-step explanation:

The given expression is

$7m - 11n - n + 5m$

We need to simplify the given expression.

Rearrange the terms according to the variables.

$7m+5m - 11n - n$

On combining like terms, we get

$(7m+5m)+( - 11n - n)$

On simplification, we get

$(12m)+( -12n)$

$12m -12n$

Taking GCF common.

$12(m -n)$

Therefore the simplified form of the given expression is 12(m -n).

5 0

2 years ago

Classify the following polynomials by the number of terms and degrees<br> -2x^3 +5x

cestrela7 [59]

Answer:

A third degree binomial

Step-by-step explanation:

The highest power is 3 hence the 3rd degree

and there are 2 terms hence the bi-nomial

8 0

2 years ago

There is a line that includes the point (2, 10) and has a slope of 1. What is its equation in

rjkz [21]

Answer:

The line is y=1x+8

Step-by-step explanation:

We can use point-slope form of a line to make an equation. Point-slope form is as follows:

y-y₁=m(x-x₁)

**The variables y₁ and x₁ are where we will plug in our given coordinates and the variable m is your slope.

1. Plug in the given info:

y-10=1(x-2)

2. Distribute the 1:

y-10=1x-2

3. Add 10 to both sides:

y=1x+8

5 0

2 years ago