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
d1i1m1o1n [39]
2 years ago
15

What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
Stels [109]2 years ago
7 0
Use (n - 2) × 180 to find the sum of the measures of the interior angles of the polygon, where n = number of sides of the polygon.
The polygon has 7 sides, so plug 7 in for n.

(7 - 2) × 180 = 900
The sum of the interior angles of this 7-gon is 900°.

Now that we know this, make an equation where all the interior angles add up to 900, then solve for x.

∠A + ∠B + ∠C + ∠D + ∠E + ∠F + ∠G = 900° ⇒
146 + 122 + 142 + 140 + 110 + 142 + x = 900
802 + x = 900
Subtract 802 from both sides.

x = 98°
pshichka [43]2 years ago
4 0
Hello!

The sum of all angle measures in a heptagon in 900°. We will subtract all of these angles from 900 to find our answer.

900-146-122-142-140-110-142=98

x=98°

I hope this helps!
You might be interested in
I need help with some of the history of math​
brilliants [131]
It’s the first option :)
5 0
2 years ago
Read 2 more answers
Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?
AlexFokin [52]

An expression which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula is: expression A. Therefore, the correct answer option is A.

<h3>What is a quadratic equation?</h3>

A quadratic equation can be defined as a mathematical expression (equation) that can be used to define and represent the relationship that exists between two or more variable on a graph. In Mathematics, the standard form of a quadratic equation is given by;

ax² + bx + c = 0

Mathematically, the quadratic formula is modeled or represented by this mathematical expression:

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

From the information provided, we have the following values;

0 = -3x² - 2x + 6

Where:

a = -3

b = -2

c = 6

Substituting the values into the quadratic formula, we have;

x = \frac{-(-2)\; \pm \;\sqrt{(-2)^2 - 4(-3)(6)}}{2(-3)}\\\\x = \frac{2\; \pm \;\sqrt{4^2 - 4(-3)(6)}}{2(-3)}

Read more on quadratic equation here: brainly.com/question/4053652

#SPJ1

4 0
1 year ago
What is the probability that the product of two dice is greater than<br> 15 on two separate rolls?
ratelena [41]

Answer:

25/324

Step-by-step explanation:

Make a table of possible products:

\left[\begin{array}{ccccccc}&1&2&3&4&5&6\\1&1&2&3&4&5&6\\2&2&4&6&8&10&12\\3&3&6&9&12&15&18\\4&4&8&12&16&20&24\\5&5&10&15&20&25&30\\6&6&12&18&24&30&36\end{array}\right]

Of the 36 results, 10 are greater than 15.

The probability the product is greater than 15 on a single roll is 10/36 = 5/18.

The probability the product is greater than 15 on two rolls is (5/18)² = 25/324.

4 0
3 years ago
Jenna multiplied four numbers together and then divided by -2. The result was a positive value.
Maksim231197 [3]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Cat+Cat+Cat=15
tankabanditka [31]

<em>The</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>2</em><em>5</em><em>.</em>

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>.</em>

<em>H</em><em>ope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>helpful</em><em> </em><em>to</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>

<em>~</em><em>p</em><em>r</em><em>a</em><em>g</em><em>y</em><em>a</em>

5 0
3 years ago
Read 2 more answers
Other questions:
  • Wat is 160656 rounded to the nearest hundred thousand
    12·2 answers
  • Identify whether the function f(x)=3x5 is a monomial function, power function, both, or neither.
    14·1 answer
  • What is the prime number of 24
    12·2 answers
  • Distance Between Two Ships Two ships leave the same port at noon. Ship A sails north at 18 mph, and ship B sails east at 17 mph.
    7·1 answer
  • The sum of a number and its square is 42. Which equation can be used to find the two numbers for which this is true?
    7·1 answer
  • Identify the corresponding parts.
    7·1 answer
  • Find the area of parallelogram 8 9 12
    15·1 answer
  • I need help please it would mean alot
    15·2 answers
  • MARKING BRAINLIEST FOR BEST ANSWER 5% of 650= 32.5 but show the work how it equals 32.5
    5·1 answer
  • Which of the following is a common multiple of 6, 9, and 12?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!