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
Scrat [10]
3 years ago
15

A triangle has sides with lenghs of 3x+3 ,2x+2 and 4x-1. what is the perimiter of the triangle

Mathematics
1 answer:
Bond [772]3 years ago
6 0
Just add the side lengths together.
3x+3+2x+2+4x-1=9x+4
You might be interested in
If the company is planning to produce 90,000 containers of crunchy peanut butter
Sergeu [11.5K]
Is there more to the problem? 
3 0
3 years ago
What is the area of the
makvit [3.9K]

Answer:

D. 720cm squared is the answer

8 0
3 years ago
1. Tell me if each of the following is True or False A. Angles EOD and DOC are Vertical Angles. B. Angles FOD and Angle DOC are
Aleksandr-060686 [28]

Answer:

Do you have any Images?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In a right triangle ABC, CD is an altitude, such that AD=BC. Find AC, if AB=3 cm, and CD= 2 cm.
konstantin123 [22]

Consider right triangle ΔABC with legs AC and BC and hypotenuse AB. Draw the altitude CD.

1. Theorem: The length of each leg of a right triangle is the geometric mean of the length of the hypotenuse and the length of the segment of the hypotenuse adjacent to that leg.

According to this theorem,

BC^2=BD\cdot AB.

Let BC=x cm, then AD=BC=x cm and BD=AB-AD=3-x cm. Then

x^2=(3-x)\cdot 3,\\ \\x^2=9-3x,\\ \\x^2+3x-9=0,\\ \\D=3^2-4\cdot (-9)=9+36=45,\\ \\\sqrt{D}=\sqrt{45}=3\sqrt{5},\\ \\x_1=\dfrac{-3-3\sqrt{5} }{2}0.

Take positive value x. You get

AD=BC=\dfrac{-3+3\sqrt{5} }{2}\ cm.

2. According to the previous theorem,

AC^2=AD\cdot AB.

Then

AC^2=\dfrac{-3+3\sqrt{5} }{2}\cdot 3=\dfrac{-9+9\sqrt{5} }{2},\\ \\AC=\sqrt{\dfrac{-9+9\sqrt{5} }{2}}\ cm.

Answer: AC=\sqrt{\dfrac{-9+9\sqrt{5} }{2}}\ cm.

This solution doesn't need CD=2 cm. Note that if AB=3cm and CD=2cm, then

CD^2=AD\cdot DB,\\ \\2^2=AD\cdot (3-AD),\\ \\AD^2-3AD+4=0,\\ \\D

This means that you cannot find solutions of this equation. Then CD≠2 cm.

8 0
3 years ago
Read 2 more answers
Find the area of a trapezium ABCD in which AB || CD, AB = 14 cm, CD = 8 cm. Given
adoni [48]

Answer:

Did you know Grapes light on fire in the microwave..

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Let A = 40. If B is complement of A, and C is a supplmenet of B, what is B+C?
    8·1 answer
  • A company’s profit is modeled by the function p(x) = -2x2 + 60x − 2, where p is the profit in thousands of dollars and x is the
    11·1 answer
  • Chris has 96 local and foreign stamps altogether in his collection. The ratio of the number of local stamps to foreign stamps is
    11·1 answer
  • What would be the circumference of a circle with a radius of 5?
    15·1 answer
  • What does 10+10 equal
    8·1 answer
  • What is the percent for 82?
    9·1 answer
  • Base conversion. Perform the following conversion <br><br> 675_10= ?___6
    12·1 answer
  • I will give 50 points if you can answer this please and thanks :)
    9·1 answer
  • I need help pleaseee
    15·2 answers
  • What are two fractions that has the same as 1 and fraction
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!