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Darina [25.2K]
4 years ago
12

Find the sum or difference

Mathematics
2 answers:
tresset_1 [31]4 years ago
6 0
I'm pretty sure your answer is B i am sorry if I'm wrong
Dmitry_Shevchenko [17]4 years ago
3 0
Its the second answer 

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Describe the transformation of the graph of the parent function y = √x for the function y = √x + 7 + 5.
kotegsom [21]

Answer:

The graph is shifted 7 units and 5 units. Left and Up.

4 0
4 years ago
a circle has an area of 81 3.14 units . what is the diameter in terms of 3.14a circle has an area of 81 Pi square units what is
Sunny_sXe [5.5K]
You have posted 2 separate questions here.  Please, next time, separate them with a blank line:

<span>A circle has an area of 81 3.14 units . what is the diameter in terms of 3.14?

I'd prefer you write this as 
"</span><span>A circle has an area of 81 pi units . what is the diameter in terms of pi?

Area of a circle = A = pi*r^2.  Note that r= diameter / 2.  Here, the area is 81 pi square units, or 9^2 * pi square units, which means that the radius is 9 units.  The diameter is then 2(9 units) = 18 units.


Your second question, separated from the first, is:

"</span><span>a circle has an area of 81 Pi square units what is the diameter of the circle?"
</span><span>
Use the following formula or formulas:  d = 2*r; A = pi*r^2; A = pi*(d/2)^2.  Find r first, and then find d.

</span>
4 0
3 years ago
Read 2 more answers
Need help with another problem
Verdich [7]
Find the midpoint:

m= x1+x2/2; y1+y2/2

m= 9+-1/2; 8+-2/2

m= 8/2; 6/2

m= (4,3)

(4,3) is your answer.

I hope this helps!
~kaikers
4 0
3 years ago
[Geometry Basics] I'm just checking if this is correct:
Leno4ka [110]
\bf ~~~~~~~~~~~~\textit{middle point of 2 points }&#10;\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~ x &,& y~) &#10;%  (c,d)&#10;&&(~ -9 &,& -1~)&#10;\end{array}\qquad&#10;%   coordinates of midpoint &#10;\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)&#10;\\\\\\&#10;\left( \cfrac{-9+x}{2}~~,~~\cfrac{-1+y}{2} \right)=\stackrel{midpoint}{(8,14)}\implies &#10;\begin{cases}&#10;\cfrac{-9+x}{2}=8\\\\&#10;-9+x=16\\&#10;\boxed{x=25}\\&#10;-------\\&#10;\cfrac{-1+y}{2} =14\\\\&#10;-1+y=28\\&#10;\boxed{y=29}&#10;\end{cases}

\bf -------------------------------\\\\&#10;\begin{array}{ccccccccc}&#10;&&x_1&&y_1&&x_2&&y_2\\&#10;%  (a,b)&#10;&&(~ x &,& y~) &#10;%  (c,d)&#10;&&(~10 &,& 12~)&#10;\end{array}\qquad&#10;\\\\\\&#10;\left( \cfrac{10+x}{2}~~,~~\cfrac{12+y}{2} \right)=\stackrel{midpoint}{(6,9)}\implies &#10;\begin{cases}&#10;\cfrac{10+x}{2}=6\\\\&#10;10+x=12\\&#10;\boxed{x=2}\\&#10;-------\\&#10;\cfrac{12+y}{2} =9\\\\&#10;12+y=18\\&#10;\boxed{y=6}&#10;\end{cases}
3 0
3 years ago
A correlation coefficient (r) is an appropriate measure of the strength of relationship between two numerical variables even whe
masya89 [10]

Answer:

The given statement is false.

Step-by-step explanation:

Correlation

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.

Thus, we can say that the given statement is false.

Correlation coefficient does not measure non linear relationship between two variables.

4 0
3 years ago
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