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
11Alexandr11 [23.1K]
2 years ago
10

What is 65.97 rounded to the nearest square inch

Mathematics
1 answer:
ss7ja [257]2 years ago
3 0

Answer:

66

Step-by-step explanation:

have a great day

You might be interested in
enelope determined the solutions of the quadratic function by completing the square. f(x) = 4x2 + 8x + 1 –1 = 4x2 + 8x –1 = 4(x2
Marat540 [252]
The correct question is
<span>Penelope determined the solutions of the quadratic function by completing the square.
f(x) = 4x² + 8x + 1
–1 = 4x² + 8x
–1 = 4(x² + 2x)
–1 + 1 = 4(x² + 2x + 1)
0 = 4(x + 2)²
0 = (x + 2)²
0 = x + 2
–2 = x
What error did Penelope make in her work?

we have that
</span>f(x) = 4x² + 8x + 1
to find the solutions of the quadratic function
let
f(x)=0
 4x² + 8x + 1=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

 (4x² + 8x)=-1

Factor the leading coefficient 

 4*(x² + 2x)=-1

Complete the square Remember to balance the equation by adding the same constants to each side.

 4*(x² + 2x+1)=-1+4 --------> ( added 4 to both sides)

Rewrite as perfect squares

4*(x+1)²=3

(x+1)²=3/4--------> (+/-)[x+1]=√3/2

(+)[x+1]=√3/2---> x1=(√3/2)-1----> x1=(√3-2)/2

(-)[x+1]=√3/2----> x2=(-2-√3)/2

therefore

the answer is

<span>Penelope should have added 4 to both sides instead of adding 1.</span>
6 0
3 years ago
Read 2 more answers
It is given 5 and h + 1 are the roots of the quadratic equation x² + (k - 1)x - 5 = 0,where h and k are constant.Find the value
Liono4ka [1.6K]

Answer:

Hello,

<u>k=-3 and h=-2</u>

Step-by-step explanation:

5\ is\ a \ root \of \ x^2+(k-1)*x-5=0\\\\5^2+(k-1)*5-5=0\\\\5*(k-1)+20=0\\\\k-1=\dfrac{-20}{5} \\\\k=-4+1\\\\\boxed{k=-3}\\

h+1 is thus a root of x²+(-3-1)*x-5=0

x²-4x-5=0

x²+x-5x-5=0

x(x+1)-5(x+1)=0

(x+1)(x-5)=0

h+1=-1

<u>h=-2</u>

6 0
3 years ago
In order to construct a line parallel to line m through a given point, P. you first
riadik2000 [5.3K]

Answer:

90 degree angles (perpendicular bisector of the line)

4 0
2 years ago
Hello can you help meee
VARVARA [1.3K]

Answer:

x=4\sqrt{2}

Step-by-step explanation:

The given triangle is a 45°-45°-90° triangle. Use the following rule:

leg=leg\\\\hypotenuse=leg*\sqrt{2}

The length of the legs is 4. Insert this value into the equation:

h=4*\sqrt{2}

Simplify:

h=4\sqrt{2}

:Done

7 0
3 years ago
Find the equivalent exponential expression (7^2)^5
VladimirAG [237]
First we simplify, like this: (7^2)^5 = 7^{10}

So the answer is 7^10<span>

Hope this helped! c:</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Jean stocked her aquarium with 36 fresh-water fish, which cost $212. The male fish cost $5 each, while the female fish cost $7 e
    5·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each unit rate to the graph that re
    11·1 answer
  • What does it mean when a number And a variable are place right next to each other In an equation
    10·1 answer
  • How do I do this question?
    11·2 answers
  • What kind of writing is found in a scientific essay?​
    13·1 answer
  • A 12-foot by 15-foot patio is increased by placing a stone border around the patio. The width of the border is the same all arou
    5·1 answer
  • Give me the funniest answer and you will be brainy, also friend me.
    8·1 answer
  • If a rectangle A has sides are three times the length of those rectangle B, how do the areas of the two rectangles compare?
    11·1 answer
  • Help help please is my final please
    5·1 answer
  • 6. A rectangular piece of land measures 0.7 km by
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!