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
Zielflug [23.3K]
2 years ago
15

The flag of a country contains an isosceles triangle. (Recap that an isosceles triangle contains two angles with the same measur

e.) If the measure of the third angle of the triangle is 30 degrees more than three times the measure of either of the other two angles, find the measure of each angle of the triangle. (Recall that the sum of the measures of the angles of a triangle is 180 degrees
Mathematics
1 answer:
sesenic [268]2 years ago
7 0

Answer:

30°, 30° and 120°

Step-by-step explanation:

Using the information given in the question.

let x be the measure of each congruent base angle , then

the third angle = 3x + 30

Sum the 3 angles and equate to 180

3x + 30 + x + x = 180, that is

5x + 30 = 180 ( subtract 30 from both sides )

5x = 150 ( divide both sides by 5 )

x = 30

Thus

The 2 congruent bas angles are each = 30°

The third angle = 3x + 30 = 3(30) + 30 = 90 + 30 = 120°

You might be interested in
Look at teh screenshot pls
Dimas [21]

Hey there!

When they are asking which of them are equal we need to solve a, b, c and d and see if they match up to 6x^2-2x-20.

<u>Starting with A: </u>

Expand:

3 x 2x^2 + 3 x -x + 3 x -6

Simplify 3 x 2x^2 to 6x^2

6x^2 + 3 x -x + 3 x -6

Regroup.

6x^2 = 3x + 3 x -6

Simplify 3 x -6 to -18

6x^2 - 3x - 18

That does not match up to 6x^2-2x-20.

A is INCORRECT.

<u>Solving B:</u>

Collect like terms:

4x - 2x + 2x^2 - 20

The ones bolded are like terms.

So, we now collect them and add them.

4x^2 + 2x^2 = 6x^2

6x^2 - 2x - 20

That matches up with 6x^2-2x-20.

B is CORRECT.

<u>Solving C:</u>

Multiply the parentheses then multiply:

6x^2-12x+10x-20

Collect like terms:

6x^2 - 2x - 20

This matches up with 6x^2-2x-20.

Thus, C is CORRECT.

<u>Solving D:</u>

Multiply the terms in the parentheses by -2:

6x^2 - 2x - 2 x 10

Multiply the numbers:

6x^2 - 2x - 20

This also matches up with 6x^2 - 2x - 20 / they are <u>equal.</u>

Thus, D is also CORRECT.

<h3>Therefore, our answers are: </h3><h2><u>B, C, D </u></h2>

Thanks a ton for using Brainly! :)

<u />

<u />

<u />

<u />

<u />

5 0
3 years ago
6. Find the slope of the line that passes through the following 2
vitfil [10]

Answer:

You would do the change in y over the change in x.  

That means you subtract your y values and that's the numerator.  Subtract your x values and that is your denominator.  Then simplify.

(4 - 4)

______

(-2 - 2)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve this inequality:<br> 20 +0.75m &lt; 65
allsm [11]

Answer:

15

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Find the measure of angle C.<br> D<br> 118°<br> C
inn [45]
The answer to C is 118 because it’s a vertical angle
5 0
2 years ago
What’s the awnser for this question I do not understand
ella [17]

Answer:

the total surface area is 40 + 12 + 15 = 67 square units

Step-by-step explanation:

Refer to the diagram:  

the combined area of the top and bottom is 2(5·4) = 40:

the combined area of the ends is 2(1.5·4) = 12; and

the combined area of the front and back is 2( 5 · 1.5) = 15

and so the total surface area is 40 + 12 + 15 = 67 square units

6 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify.<br> 57x+12−32(3+5)−10
    11·1 answer
  • I have a test next week and I don't know or understand how to do this question. Can someone explain or show me how to find the a
    9·1 answer
  • What 946 x 1367 = what
    12·2 answers
  • The product of two consecutive positive even numbers is 1,224. Find the numbers.
    12·2 answers
  • Explain how the statement "there is 3/4 cup per serving" represents a rate.
    9·1 answer
  • The product of a rational and irrational number is rational. always sometimes never
    9·1 answer
  • On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, negative 2) an
    14·2 answers
  • Find the slope of the line.<br> 1.<br> (5, 3)<br> (-5, 1)
    10·1 answer
  • If you have a bag full of balls. It has 6 blue balls, 6 red balls, and 6 green balls. Let's say you take three balls randomly at
    9·1 answer
  • Maribeth has 131 ounces of sandwich meat. How many sandwiches can she make if she puts 2.5 ounces of meat on each sandwich? She
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!