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
AysviL [449]
4 years ago
9

What is the value of x

Mathematics
2 answers:
Masja [62]4 years ago
7 0

Answer:x=8

Step-by-step explanation:

The image shows an equilateral triangle

In geometry, an equilateral triangle is a triangle in which all three sides are equal, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°.In geometry, an equilateral triangle is a triangle in which all three sides are equal. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°.

Therefore,

(7x+4)°=60°.

7x+4=60

7x=60-4

7x=56

7x/7=56/7

x=8

RUDIKE [14]4 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

An equilateral triangle has <em>all sides and angles the same.</em> An equilateral triangle has 60° measure on all verticals.

So,

7x + 4 = 60

7x = 60 - 4

7x = 56

x = 8

Check:

7(8) + 4 = 60

56 + 4 = 60

60 = 60

You might be interested in
Est. Length: 2:00:00
Aleks [24]

Answer:

?????

Step-by-step explanation:

?????

6 0
3 years ago
A consumer affairs investigator records the repair cost for 44 randomly selected TVs. A sample mean of $54.41$ 54.41 and standar
anzhelika [568]

Answer:

($47.245; $61.575)

Step-by-step explanation:

Mean sample repair cost (X) = $54.41

Standard deviation (s) = $28.89

Sample size (n) =44

Z-score for a 90% confidence interval (z) = 1.645

The confidence interval, assuming a normal distribution, is given by:

X \pm z\frac{s}{\sqrt{n}}

Applying the given data, the lower (L) and upper (U) bounds of the interval are:

L=54.41-1.645*\frac{28.89}{\sqrt{44}} \\L=\$47.245\\U=54.41+1.645*\frac{28.89}{\sqrt{44}} \\U=\$61.575

The confidence interval is I = ($47.245; $61.575)

6 0
4 years ago
Read 2 more answers
What does (<img src="https://tex.z-dn.net/?f=%28x%5E%7B2%7D%2B4x%29%28x%29" id="TexFormula1" title="(x^{2}+4x)(x)" alt="(x^{2}+4
eimsori [14]

the first definition of an element was made by

4 0
3 years ago
Find the surface area:
ANTONII [103]

Answer:

120 in

Step-by-step explanation:

(5 in * 12 in)/2 = 30 in

30 in * 4 = 120 in

I hope that helps :D

8 0
3 years ago
Read 2 more answers
What is the answer <br><br> I will give you 14 points
IceJOKER [234]

5/6+(-1 1/6) = 5/6-7/6 = -2/6 = -1/3

answer: Put the sum 2 marks to the left of 0 (to place -1/3).

7 0
4 years ago
Other questions:
  • What is 5x²/30x simplified?
    14·1 answer
  • Can someone solve the system of equations?
    6·1 answer
  • What is the square root?
    7·1 answer
  • Factor 16x^3+16x^2+3x
    10·1 answer
  • During the soccer season, Michelle attempted 130 goals and made about 70% of them.
    10·1 answer
  • A free-falling golf ball strikes the ground and exerts a force on it. Which sentences are true about this situation?
    14·1 answer
  • Given: E, F, Q, D∈k(O),
    6·1 answer
  • A swim coach has at most $800 to buy equipment for the swim team. Each pull buoys costs $5.50 and each kickboard costs $10. Let
    6·1 answer
  • A circle has a diameter of 12 units what could be the equation of the circle? Check all that apply
    8·1 answer
  • Troy assembles wooden toya at Tindall's Toy Shoppe. He is paid $1.46 for each snake, $1.11 ab each fan, and $1.74 for each teddy
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!