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
REY [17]
2 years ago
13

Find the perimeter of the triangle in the picture

Mathematics
2 answers:
Len [333]2 years ago
5 0

Answer:

6x - 8

Step-by-step explanation:

  1. perimeter of a triangle is equal to adding all of the sides together
  2. so, x-2 + 2x +1 + 3x - 7
  3. collect like terms, x + 2x + 3x - 2 + 1 - 7
  4. 6x - 8
topjm [15]2 years ago
3 0

Answer:

6x-8

Step-by-step explanation:

You might be interested in
Help me.... this is do in 13 min
aivan3 [116]

Answer:

d

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve the equation:<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B21%20-%204x%7D%7B9%7D" id="TexFormula1" title="\frac{21 - 4x
schepotkina [342]

Answer:

x = -\frac{12}{5}

Step-by-step explanation:

To solve the equation, isolate x. Whatever you do to isolate x one on side, you must do to the other.  

1) Multiply both sides by 9 to get rid of the fractions.  

\frac{21-4x}{9} +\frac{8x+15}{3} = 2 \\21-4x + 3(8x + 15) =18 \\

2) Distribute the 3 to 8x and 15. Then, combine like terms.

21-4x + 24x + 45 = 18 \\66 + 20x = 18

3) Move the 66 to the other side, subtracting 18 by 66, then divide each side by 20 to finally isolate x.

20x = -48\\x = -\frac{48}{20} \\x =- \frac{12}{5}

Thus, x = -\frac{12}{5}.

3 0
3 years ago
Two angles of a triangle are 30°and 80°. Find the third angle.
stiv31 [10]

Answer:

The third angle of the triangle is 70°.

Step-by-step explanation:

The two angles of a triangle (say Δ ABC) are given to be 30° and 80°.

We have to find the third angle.

Let us assume that ∠ A = 30° and ∠ B = 80°, then we have to find ∠ C.

Now, we know that, ∠ A + ∠ B + ∠ C = 180° {Property of a triangle}

⇒ 30° + 80° + ∠ C = 180°

⇒ ∠ C = 180° - 30° - 80° = 70°

Therefore, the third angle of the triangle is 70°. (Answer)

7 0
3 years ago
The sum of 10 and twice a number<br> (an equation)
Gekata [30.6K]

Answer:

10+2x= the sum (anything could be put here)

Step-by-step explanation:

Well sum is automatically addition

Doubleing a number is basically multiplying it by 2

so

10+2x= whatever youw ant to put here

8 0
2 years ago
Assume the probability of having a boy or a girl is the same. What is the probability a family has three boys?
almond37 [142]
The probability of having a boy: 1/2

1/2(1/2)(1/2)=1/8

The probability of a family having three boys is 1/8.

Hope this helps!
3 0
3 years ago
Other questions:
  • Please help me i dont get either one of them i just need one of them. Please shiw steps. Thanks
    7·1 answer
  • How many units away is 1 from -6 on a number line? A. 7 B. -5 C. 5 D. -7
    14·1 answer
  • Find each missing term.<br> p:4 = 9:12<br> Explain step by step
    9·1 answer
  • Can someone round these to the nearest .1 <br><br> 1.602564102564103 <br><br> 2.380952380952381
    10·1 answer
  • As a fundraiser, the Music Boosters wrapped gifts at the mall one weekend. Out of the 100 gifts they wrapped, 3/10 were for wedd
    5·1 answer
  • I need help please think before you answer
    8·1 answer
  • !!!Need an answer ASAP!!! A right triangle has a hypotenuse of 16 and a leg of 9. find the length of the other leg.
    10·1 answer
  • Identify the vertex of the quadratic. Sketch the graph of the function.
    8·2 answers
  • A group of 4 friends paid a total of $50.24 for tickets to a museum. Each friend paid the same amount for a ticket. Solve this a
    12·1 answer
  • Help please asap I’m desperate!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!