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
PIT_PIT [208]
3 years ago
5

Expand and simplify (x+3)²

Mathematics
2 answers:
Ivenika [448]3 years ago
7 0

Answer:

<h2>x² + 9 + 6x </h2>

Step-by-step explanation:

expand and simplify (x+3)²

(x+3)² =

x² + 9 + 2 × x × 3 =

x² + 9 + 6x

arsen [322]3 years ago
6 0

Answer:

x² + 6x + 9

Step-by-step explanation:

( x + 3 ) ²

( x + 3 ) ( x + 3 )

x ( x + 3 ) + 3 ( x + 3 )

x² + 3x + 3x + 9

x² + 6x + 9

Hope this helps you.

Let me know if you have any other questions :-)

You might be interested in
What is the area of the triangle?<br> 16<br> 10<br> "T<br> 8
Alexxandr [17]

Answer:

40 unit^2.

Step-by-step explanation:

Area = 1/2 * base * altitude

= 1/2 * 8 * 10

= 40 unit^2.

6 0
3 years ago
After eating dinner at a restaurant your bill was $56. You plan to leave a 20% tip. What will your total cost be? (Hint: find th
DerKrebs [107]

Answer: $67.20

Step-by-step explanation:

56 × 0.2 = 11.2

11.2 + 56 = $67.20

3 0
3 years ago
You need to fence in a rectangular piece of land for your dog to run and play. The length is 3 times the width. If the perimeter
nikitadnepr [17]

Answer:

Width = 15 feet

Length = 45 feet

Step-by-step explanation:

You need to fence in a rectangular piece of land for your dog to run and play. The length is 3 times the width. If the perimeter is 120 ft, what are the dimensions of your very own dog park?

Perimeter of a rectangle = 2L + 2W

The length is 3 times the width.

L = Length = 3W

W = Width

P = 120 ft

Hence:

120 = 2L + 2W

120 = 2(3W) + 2W

120 = 6W + 2W

120 = 8W

W = 120/8

W = 15 feet

Solving for Length

L = 3W

L = 3 × 15 feet

L = 45 feet

Therefore, the dimensions of your very own dog park is

Width = 15 feet

Length = 45 feet

3 0
3 years ago
Can someone solve this?
ladessa [460]
  • First question:

Recall that \cos^2x+\sin^2x=1 and \sqrt{x^2}=|x| for all x. So

\sqrt{1-\cos^2x}=\sqrt{\sin^2x}=|\sin x|

\sqrt{1-\sin^2x}=\sqrt{\cos^2x}=|\cos x|

For 0, we expect both \cos x>0 and \sin x>0 (i.e. the sine and cosine of any angle that lies in the first quadrant must be positive). By definition of absolute value, |x|=x if x>0.

So we have

\dfrac{\sqrt{1-\cos^2x}}{\sin x}+\dfrac{\sqrt{1-\sin^2x}}{\cos x}=\dfrac{\sin x}{\sin x}+\dfrac{\cos x}{\cos x}=1+1=\boxed{2}

making H the answer.

  • Second question:

C is always true, because the inequality reduces to x > y.

6 0
3 years ago
PLEASE HELP MEEEE!!!!!!
trapecia [35]

Answer:

the answer is 45

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Select the correct answer from each drop-down menu. The general form of the equation of a circle is 7x2 + 7y2 − 28x + 42y − 35 =
    10·1 answer
  • Quadrilateral ABCD is inscribed in this circle. what is the measure of angle C?
    7·1 answer
  • Emilio owns a bakery. The number of boxes of cookies he has left on a Monday is represented by the function x + y = 42, where y
    10·1 answer
  • !!!! HELP!!! What is the solution to this system of linear equations?
    11·2 answers
  • Which point is inside the circle shown below?
    10·2 answers
  • What is 58 times 8 using cumulative property
    14·1 answer
  • a wheel has a diameter of 15cm. The wheel travels 50 metres. How many revolutions does the wheel complete?
    11·1 answer
  • A phone company uses the equation y = 0.15x + 10 to find y, the monthly charge for a customer sending x text
    7·1 answer
  • How can we use variables and equations to help us <br> solve problems?
    10·2 answers
  • The height of a projectile launched upward at a speed of 48 feet/second from a height of 160 feet is given by the function h(t)=
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!