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
GREYUIT [131]
3 years ago
7

Suppose an isosceles triangle ABC has A= pi/6 and b=5=c. What is the length of a^2.

Mathematics
2 answers:
Oliga [24]3 years ago
3 0
Check the picture below.

mars1129 [50]3 years ago
3 0

Answer:

Option A. 5²(2-√3)

Step-by-step explanation:

In an isosceles triangle b = c = 5 and ∠A = π/6

By cosine rule in any triangle

a² = b² + c² - 2bc cosA

By putting the values of b, c and ∠A in the equation

a² = 5² + 5² - 2×5×5×cos(π/6) = 25 + 25 - (50√3/2) = 50 - 25√3

a² = 25(2-√3) = 5²(2-√3)

Therefore the answer is Option A. 5²(2 - √3)

You might be interested in
What is the circumference of this circle? (Use C = <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\p
posledela
The answer is B, 31.4m
4 0
3 years ago
Read 2 more answers
Can someone please help me with this? I'll give brainliest :)
vlabodo [156]

The slope of y = 3x - 4 on the interval [2, 5] is 3 and the slope of y = 2x^2-4x - 2 on the interval [2, 5] is 10

<h3>How to determine the slope?</h3>

The interval is given as:

x = 2 to x = 5

The slope is calculated as:

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

<u>16. y = 3x - 4</u>

Substitute 2 and 5 for x

y = 3*2 - 4 = 2

y = 3*5 - 4 = 11

So, we have:

m = \frac{11  - 2}{5 - 2}

m = \frac{9}{3}

Divide

m = 3

Hence, the slope of y = 3x - 4 on the interval [2, 5] is 3

<u>17. y = 2x^2-4x - 2</u>

Substitute 2 and 5 for x

y = 2 * 2^2 - 4 * 2 - 2 = -2

y = 2 * 5^2 - 4 * 5 - 2 = 28

So, we have:

m = \frac{28  + 2}{5 - 2}

m = \frac{30}{3}

Divide

m = 10

Hence, the slope of y = 2x^2-4x - 2 on the interval [2, 5] is 10

Read more about slopes at:

brainly.com/question/3605446

#SPJ1

3 0
1 year ago
Which equation represents a line that passes through (5’1) and has a slope of 1/2?
Svetllana [295]

Answer:

third one passes through the slope .

4 0
2 years ago
Read 2 more answers
The first 5 numbers of a sequence are shown below. Which of the following functions produces the sequence with n: (1, 2, ...,
Rasek [7]

Answer:

C)

Step-by-step explanation:

f(n) = 26 + 9(n-1)

4 0
3 years ago
A bicycle and a tricycle manufacturer makes bikes and trikes with the same size of wheels. They received a shipment of 100 wheel
natima [27]
2 trikes (6 wheels) and 47 bikes (94 wheels)
or
4 trikes (12 wheels) and 44 bikes (88 wheels)
or
6 trikes (18 wheels) and 41 bikes (82 wheels)
or
8 trikes (24 wheels) and 38 bikes (76 wheels)
or
10 trikes (30 wheels) and 35 bikes (70 wheels)

As long as you start our with an even number of trikes, you'll find a way to use up all the tires with no remainders.
4 0
3 years ago
Other questions:
  • Smallville High School's Principal is concerned about his school’s Advanced Placement (AP) test scores. He wonders if there is a
    14·1 answer
  • What cubed is the square root of one million?
    14·1 answer
  • What is the value of X? any help would be great:)
    9·2 answers
  • Help me simplify this
    7·1 answer
  • What is the binomial expansion of (m + 2)4?
    6·1 answer
  • What is y-intercept of the line described by the equation below? y = 5x-22
    11·2 answers
  • Which answer choice describes a correct way of graphing the line y = –x – 4? Question 3 options:
    10·2 answers
  • lines a and b are represented by the equations given below: line a: 6x 6y = 24 line b: x y = 4 which statement is true about the
    12·1 answer
  • ∞ IS IT AN EVEN or odd
    5·1 answer
  • Find the Area of the figure below, composed of a parallelogram and one semicircle. Rounded to the nearest tenths place
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!