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
frosja888 [35]
3 years ago
8

A triangle has side lengths of n, n – 3, and 2(n − 2). If the perimeter of the triangle is at least 37 units, what is the value

of n?
OA.

n> 11

OB

n> 8

O C.

n > 10.5

OD

n > 7.5
Mathematics
1 answer:
Vilka [71]3 years ago
3 0

Answer:

n = 11

Step-by-step explanation:

The side length of a triangle are n,n-3 and 2(n-2).

The perimeter of the triangle, P = 37 units

We need to find the value of n.

Perimeter = sum of all sides

n+n-3 +2(n-2) = 37

2n-3+2n-4 = 37

4n -7 = 37

4n = 37+7

4n = 44

n = 11

So, the value of n is 11.

You might be interested in
How can you add eight 8's to get the number 1,000? (only use addition)
Fudgin [204]
The answer is 888+88+8+8+8
6 0
3 years ago
Find the equation of line b described below, in slope-intercept form
Serjik [45]

Given:

Line a is perpendicular to line b .

Line a passes through the points (1,-8) and (9,-12) .

Line b passes through the point (-8, -16).

To find:

The equation of b.

Solution:

Line a passes through the points (1,-8) and (9,-12) . So, slope of line a is

m=\dfrac{y_2-y_1}{x_2-x_1}

m_a=\dfrac{-12-(-8)}{9-1}

m_a=\dfrac{-12+8}{8}

m_a=\dfrac{-4}{8}

m_a=-\dfrac{1}{2}

Product of slopes of two perpendicular lines is -1.

m_a\times a_b=-1

-\dfrac{1}{2}\times a_b=-1

b=2

Slope of line b is 2.

If a line passing through a point (x_1,y_1) with slope m, then equation of line is

y-y_1=m(x-x_1)

Line b passing through (-8,-16) with slope 2. So, equation of line b is

y-(-16)=2(x-(-8))

y+16=2(x+8)

y+16=2x+16

Subtract 16  from both sides.

y=2x

Therefore, the equation of line b is y=2x.

7 0
3 years ago
Can someone show me how you get it and the answer
pochemuha

Answer: b=8 m=2

Step-by-step explanation: when x is 0 y=8 so that gives you the y-intercept. When you subtract 8-6 its 2 which is over 2 which is 2

8 0
3 years ago
Read 2 more answers
Help 7th grade math pls
madam [21]

Answer:

1,455 feet

Step-by-step explanation:

Step 1:

1 : 75    Ratio Inches to Feet

Step 2:

1 : 75 = 19.4 : x   Equation

Answer:

x = 1,455  Multiply

Hope This Helps :)

4 0
3 years ago
Read 2 more answers
Help with this proof
mixer [17]
Essentially, what we need to do here is prove that BE=EC, BE=CB, and.or CE=BC therefore making it isosceles. With ∠AEC=∠DEB, we know AE=DE, so EC=EB (the points go in order). Therefore, as EC=EB, BEC is isosceles (it has at least 2 equal sides).

Feel free to ask further questions! 
7 0
3 years ago
Other questions:
  • PLEASE HELP REALLY URGENT!!
    7·1 answer
  • Which order pair is a solution to every linear equation in the form of ax+bx=0
    5·1 answer
  • Simplify: 8x3 – 2x2 + x + 3x3 need answer asap
    8·1 answer
  • Write and inequality or this statement ; To watch this movie you must be at least 17 years old ?
    7·1 answer
  • Which graph represents -3x + 5y = -15
    13·2 answers
  • A 10-ft ladder leans against the side of a house. The bottom of the ladder is 7 from the side of the house. How high is the top
    12·1 answer
  • Please someoen help me with this, i will give brainly only if answer is correct
    13·1 answer
  • IF 0 ≤theta°≤360°<br><br>find cos(2theta-10°)=-1/2
    5·1 answer
  • URGENT, According to the graph below , the slope of line B is
    7·2 answers
  • Which expression is equivalent to…
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!