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
sveticcg [70]
3 years ago
15

Can someone please help me

Mathematics
1 answer:
Anna11 [10]3 years ago
7 0

Like the given triangle is an isosceles triangle, the value of ∠ABC is 72°.

<h3>Types of Triangles</h3>

There are 3 main classifications for triangles refer to its sides.

  • Equilateral triangle - This triangle presents all sides with the same dimensions and the all angles equal to 60°.
  • Isosceles triangle - This triangle presents two sides with the same dimensions and it has two angles with equal size.
  • Scalene triangle  - This triangle presents all sides with different dimensions and it has all angles no equal size.

The figure shows that the given triangle is an isosceles triangle because it has two equal sides (AB=AC). If it is an isosceles triangle, this triangle presents two sides with the same dimensions (AB=AC). and it has two angles with equal size(∠ACB=∠ABC).

Knowing the sum internal angles of triangle is 180°. You can write:

3x+6x+6x=180

15x=180

x=12

Like ∠ABC=6x, then ∠ABC=6*12=72°.

Read more about the types of triangles here:

brainly.com/question/24265179

You might be interested in
Various pieces of string are cut at different angle lengths. Stephanie selects three pieces that measure 4.5 cm, 6 cm, and 8.5 c
Vikentia [17]

Answer:

Step-by-step explanation:

18

3 0
3 years ago
Please help me put them in the right place asap I just want to go to sleep
Reptile [31]

Step-by-step explanation:

zoom of - 9038735228 pwd -97cEeT join me for talk....I m getting bored now...

7 0
3 years ago
Manufacture wants to enlarger it's floor area 1.5 times that of the current facility. The current facility is 260 ft by 140 ft.
Lady bird [3.3K]

Answer:

New dimensions of the floor is approximately 301.25 ft by 181.25 ft

Step-by-step explanation:

The question is incomplete. The complete question should be:

Manufacture wants to enlarger it's floor area 1.5 times that of the current facility. The current facility is 260 ft by 140 ft. The manufacture wants to increase each dimension the same amount. Write the dimensions of the new floor.

Given:

Length of floor = 260 ft

Width of floor = 140 ft

The floor area is increased 1.5 times.

To find the new dimensions of the floor.

Solution:

Original area of the floor = length\times width= 260\times 140=36400\ ft^2

New area = 1.5\times Original\ Area = 1.5\times 36,400=54,600\ ft^2

Let the length and width be increased by x ft.

Thus, new length = (260+x)\ ft

New width = (140+x)\ ft

Area of the new floor can be given as:

⇒ new\ length\times new\ width

⇒ (260+x)(140+x)

Multiplying using distribution.

⇒ x^2+260x+140x+36400

⇒ x^2+400x+36400

Thus we can equate this with new area to get the equation to find x

x^2+400x+36400=54600

subtracting both sides by 54600.

x^2+400x+36400-54600=54600-54600

x^2+400x+18200=0

Using quadratic formula:

For a quadratic equation ax^2+bx+c=0

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

For the equation x^2+400x-18200=0

x=\frac{-400\pm\sqrt{(400)^2-4(1)(-18200)}}{2(1)}

x=\frac{-400\pm\sqrt{232800)}}{2}

x=\frac{-400\pm482.49}{2}

x=\frac{-400+482.49}{2} \ and\ x= \frac{-400-482.49}{2}

∴ x\approx 41.25 \ and\ x\approx-441.25

Since length is being increased, so we take x\approx41.25

New dimensions are:

New length \approx 260\ ft + 41.25\ ft =301.25\ ft

New width \approx 140\ ft + 41.25\ ft =181.25\ ft

3 0
3 years ago
Brainliest answer to first
dangina [55]

Answer:

(a) -1^2 = -1

(b) 3 = 3

(c) 2(3) + 1 = 7

Step-by-step explanation:

4 0
3 years ago
What is the answer x[x+2(3x-7)]=22x-65​
Bezzdna [24]
<h2>x[x+2(3x-7)]=22x-65</h2><h2>x[x+6x-14]=22x-65</h2><h2>x^2+6x^2=22x-65</h2><h2>8x^2=22x-65</h2><h2>8x^2-22x=-65</h2>
7 0
4 years ago
Other questions:
  • Which of the following is equivalent to (5 /k) + ((k + 3) /(k + 5)) ?
    8·2 answers
  • How do i start this problem off?
    8·1 answer
  • Cody was going to sell all of his stamp collection to buy a video game. after selling half of them he changed his mind. he then
    15·1 answer
  • Explain what the variable represents in a addition or subtraction expression
    7·1 answer
  • Explain how you know which number 1 15/16 17/8 63/33 is closest to 2
    6·1 answer
  • Hector buys a used car with an odometer reading of 31,250 miles. After the first month, the mileage shows an increase of 5%. Aft
    5·1 answer
  • Hey I have an exam tomorrow in my "Statistics for Computer Science" course and I need help on a few problems.. Not sure where to
    9·1 answer
  • Write an equation to the model above<br> BEST ANSWER GET BRANLIEST
    12·1 answer
  • HELPPPP HURRYYYYY I DONT KNOW WHEN THIS IS DUE
    12·1 answer
  • The bill for the dinner comes to $39.50.<br> How much is a 15% tip to the nearest cent?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!