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
dem82 [27]
3 years ago
8

Jonas draws a triangle, measures its three angles, and adds the measures together. He draws several more triangles and does the

same thing. He writes the following conjecture: The measures of the three angles of a triangle add up to 180°. Which of the following statements is true
Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Complete question is;

Jonas draws a triangle, measures its three angles, and adds the measures together. He draws several more triangles and does the same thing. he writes the following conjecture: the measures of the three angles of a triangle add up to 180°. which of the following statements is true?

a. jonas believes that his conjecture only applies to the triangles he drew and measured.

b. jonas believes that his conjecture only applies to the triangles he drew and measured.

c. jonas believes his conjecture is true for all triangles.

d. none of the above.

Answer:

C. jonas believes his conjecture is true for all triangles.

Step-by-step explanation:

A conjecture in maths is simply a conclusion or a proposition that is like an educated guess which is likely to be true due to supporting evidence from preliminary study or research. However, it is just like a hypothesis for which no proof or disproof has been gotten.

Now, to the question, he came up with that conjecture after drawing so many triangles. So it means he is making a generalized statement for every triangle and not just the ones he drew.

Thus, the correct answer is Option C.

You might be interested in
A total of 765 tickets were sold for the school play. They were either adults or students tickets. There were 65 more student ti
Brrunno [24]

Answer: 350 adult tickets

Step-by-step explanation:

(omg I remember this question!)

  • a stands for the number of adult tickets sold

student tickets : a + 65

<em>the equation for the prob: </em>

765 = a + (a + 65)

<em>solve:</em>

combine 'like terms'

1.) 765 = a + a + 65

2.) 765 = 2a + 65

<u>- 65         - 65 </u>

700= 2a

divide by 2

700/2 = 2a/2

<em>(700/2 = 350) </em>

<em>(the "2" in 2a is cancelled out by the other 2)</em>

<u>350 = a </u>

7 0
3 years ago
Presley and Lakira sell cookies. Presley sold 5 less than twice as many cookies as LaKira. If LaKira sold 16 cookies, how many c
soldi70 [24.7K]
27. twice as many as 16 would be 32 and 32-5 is 27
5 0
3 years ago
H(x)=-7x-11 when x=7
Eva8 [605]

Answer:

-60

Step-by-step explanation:

h(x)=-7x-11

h(7)=-7(7)-11

h(7)=-49-11

h(7)=-60

5 0
3 years ago
Read 2 more answers
Given that sectheta = -37/12 what is the value of cottheta for pi/2 &lt; theta&lt; pi?
lys-0071 [83]

Answer:

cotg(\theta) = -\frac{12}{35}

Step-by-step explanation:

The cotangent of theta is:

cotg(\theta) = \frac{\cos{\theta}}{\sin{\theta}}

For pi/2 < theta< pi

This means that the angle is in the second quadrant. In the second quadrant, the cosine is negative and the sine is positive. This means that the cotangent will be negative.

Secant:

sec(\theta) = \frac{1}{\cos{\theta}}

In this question

sec(\theta) = -\frac{37}{12}

So

-\frac{37}{12} = \frac{1}{\cos{\theta}}

Using cross multiplication

-37\cos{\theta} = 12

37\cos{\theta} = -12

\cos{\theta} = -\frac{12}{37}

Now we apply the following trigonometric identity:

\sin{\theta}^{2} + \cos{\theta}^{2} = 1

\sin{\theta}^{2} + (-\frac{12}{37})^{2} = 1

\sin{\theta}^{2} = 1 - (-\frac{12}{37})^{2}

\sin{\theta}^{2} = 1 - \frac{144}{1369}

\sin{\theta}^{2} = \frac{1369 - 144}{1369}

\sin{\theta} = \pm \sqrt{\frac{1225}{1369}}

Since the angle is in the second quadrant, the sine is positive.

\sin{\theta} = \frac{35}{37}

Finally, the cotangent:

cotg(\theta) = \frac{\cos{\theta}}{\sin{\theta}}

cotg(\theta) = \frac{-\frac{12}{37}}{\frac{35}{37}}

cotg(\theta) = -\frac{12}{35}

4 0
3 years ago
Read 2 more answers
If $360 dollars is invested at an interest rate of 4% per year and is compounded quarterly, how much will the investment be wort
brilliants [131]
Fv=360(1+0.04/4)^4*18
Fv=360(1+0.01)^72
Fv=736.96
7 0
3 years ago
Read 2 more answers
Other questions:
  • Circle O has radius 10. Chord XY is 8 cm long. How far is the chord from the center of the circle?
    11·1 answer
  • What times what equals -18 but adds up to -7?
    7·1 answer
  • maxwell wants a new phone for his 25th birthday. the one he wants cost $860 to purchaseand an additional 75 a month. his parents
    15·1 answer
  • Let U = {English, French, History, Math, Physics, Chemistry, Psychology, Drama}, A = {Math, History, Chemistry, English}, B = {P
    5·1 answer
  • <img src="https://tex.z-dn.net/?f=5.6%20%20%20%20%5Cdiv%201.682" id="TexFormula1" title="5.6 \div 1.682" alt="5.6 \div 1.6
    13·2 answers
  • Find the value of the expression (5-3) x 2+6
    14·1 answer
  • 1
    10·1 answer
  • Solve for xx and graph the solution on the number line below. If possible, resolve your answer to a single inequality. In case o
    11·1 answer
  • 120 adults complete a survey. 45 are men. Write the ratio of men : women in its simplest form
    12·1 answer
  • Does the object below have a measurable volume? How do you know?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!