1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
4 years ago
6

7. What is the square root of 81? A. 8 B. 11 C. 18 D. 9

Mathematics
2 answers:
Pachacha [2.7K]4 years ago
7 0
The square root of 81 is D.9.Hope this helps!

Alexeev081 [22]4 years ago
5 0
D. 9. It is 9 because square root <span>of a number is a value that, when multiplied by itself, gives the number. So if you did trial and error it is simple. Also fi you know your times tables you should know that.
</span><span>
</span><span>Hope this helps!
</span><span>
</span>

You might be interested in
Find a formula for a geometric sequence that begins with 11, -33, 99
Romashka-Z-Leto [24]

Answer:

17

Step-by-step explanation:

3 0
3 years ago
Write the equation of the graphs below and explain
solniwko [45]

Answer:

  y = 3√(x+3) -2

Step-by-step explanation:

The given points seem to match those of (half) a parabola that opens to the right. The parent function would be ...

  x = y^2

or ...

  y = √x . . . . . gives the upper half of the parabola only

It seems to have a vertical expansion by a factor of 3 and a translation of the vertex from (0, 0) to (-3, -2). The transformed function is then ...

  y = 3√(x +3) -2

_____

We have transformed the parent function using ...

  y = a·f(x-h) +k

where <em>a</em> is the vertical expansion factor, <em>h</em> is the horizontal translation, and <em>k</em> is the vertical translation.

5 0
4 years ago
The area formula for a triangle is?
jeka57 [31]
The area of a triangle is always:

A=bh/2

Area=(base*height)/2
5 0
4 years ago
Read 2 more answers
-x -7y = 14<br> -4x -14y =28
koban [17]

Given:

\to \bold{-x -7y = 14}\\\\\to \bold{-4x -14y =28}\\\\

To find:

\bold{x \ and \ y}=?

Solution:

\to \bold{-x -7y = 14}..................... (i) \\\\\to \bold{-4x -14y =28} .................(ii)\\\\

Solving the equation (i):

\to \bold{-x -7y = 14} \\\\  \to \bold{-x=  14+7y} \\\\    \to \bold{x= - (14+7y)} \\\\

Putting the value of x into the equation (ii):

\to \bold{-4(-(14+7y)) -14y =28} \\\\\to \bold{4(14+7y) -14y =28} \\\\\to \bold{56+28y -14y =28} \\\\\to \bold{56+14y =28} \\\\\to \bold{28+14y =0} \\\\\to \bold{14y =-28} \\\\\to \bold{y =\frac{-28}{14}} \\\\\to \bold{y =-2} \\\\

Putting the value of y into the equation (i):

\to \bold{-x -7(-2) = 14}\\\\\to \bold{-x +14 = 14}\\\\\to \bold{-x  = 14-14}\\\\\to \bold{x  = 0}\\\\

So, the value of \bold{x=0 \ and\  y= -2}\\\\

Learn more:

brainly.com/question/10151402

7 0
3 years ago
What is the predicted difference in sleep between individuals A and B, where individual A has 12 years of education and works 20
kari74 [83]

Answer: The predicted difference in sleep is 1251437 minutes.

Step-by-step explanation:

Since we have given that

Number of years of education = 12 years

Number of minutes a week = 2000

As we have

In case of individual A:

7 days = 2000 minutes

1 year = 365 days = \dfrac{2000}{7}\times 365=104285

12 years = 104285\times 12=1251420\ minutes

In case of individual B:

7 days = 3000 minutes

1 year = 365 days = \dfrac{3000}{7}\times 365=156428

16 years = 156428\times 16=2502857 minutes

So, the predicted difference in sleep between individuals A and B is given by

2502857-1251420\\\\=1251437\ minutes

Hence, the predicted difference in sleep is 1251437 minutes.

7 0
3 years ago
Other questions:
  • In an equilateral triangle, all three side lengths are equal. Suppose you know that the perimeter of equilateral triangle ABC is
    15·2 answers
  • A roulette wheel contains the integers 1 through 36, 0, and 00. suppose that you spin the wheel 6 times and that each time you b
    12·1 answer
  • Please help! Give the answer and how you got it, i have a test tomorrow!!
    14·1 answer
  • can anyone help me with this? also, take note that the word “ hence ” requires the use of the previous solution used in the earl
    7·1 answer
  • How many solutions does this equation have?
    5·1 answer
  • Which could be the entire interval over which the function, f(x), is negative?
    15·2 answers
  • HELP! WILL GIVE BRANLIEST!!
    9·1 answer
  • Max can type 165 words in 2 minutes. At that rate, how many words can he type in 55 minutes?
    14·2 answers
  • Help me now pls I need it​
    7·1 answer
  • If y - 9 = 3, what is<br> the value of 4(y + 3)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!