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Nesterboy [21]
2 years ago
11

What is m∠B? (view attached file)

Mathematics
1 answer:
Pepsi [2]2 years ago
4 0

Answer:

m∠B = 141°

Step-by-step explanation:

sides of polygon (n) = 7

sum of angles of polygon = {(n - 2) * 180°}

= {(7 -2)*180°}

= 5* 180°

= 900°

Now,

m∠B = 900° - 148° - 142° - 130° - 129° - 120° - 90°

m∠B = 141°

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Nastasia [14]

Answer:

9 - 3=6

Step-by-step explanation:

7 0
2 years ago
Which table represents a linear function?
Brrunno [24]

Answer:

Table C is the answer

Step-by-step explanation:

4 0
3 years ago
Find the sum of the odd integers between 24 and 50
morpeh [17]

Answer:

  481

Step-by-step explanation:

There are several ways you can get there.

1. There are only 13 numbers, so you can write them down and add them up.

  25 + 27 + 29 + ... + 47 + 49 = 481

__

2. You can use the formula for the sum of an arithmetic sequence. This one has a starting value of 25, an ending value of 49, and 13 terms.

  Sum = ((start) + (end))/2 × (number of terms) = (25 +49)/2×13 = 481

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3. You can use a formula for the terms of the series and evaluate the sum.

  an = 25 +2(n -1) = 2n +23

\sum\limits_{n=1}^{13}{(2n+23)}=2\sum\limits_{n=1}^{13}(n)+\sum\limits_{n=1}^{13}{(23)}=2\dfrac{13\cdot 14}{2}+13\cdot 23=481

4 0
3 years ago
What is the slope of the line on the graph? ​
Phoenix [80]

Answer:

m=-2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-3, 6)

Point (3, -6)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                   m=\frac{-6-6}{3+3}
  2. Subtract/Add:                     m=\frac{-12}{6}
  3. Divide:                                m=-2
6 0
3 years ago
What is the distance between the points (3,-7) and (6,2)
kotykmax [81]

Answer:

Step-by-step explanation:

Use the distance formula to determine the distance between the two points.

Distance

=√(x2−x1)2+(y2−y1)2

Substitute the actual values of the points into the distance formula.

√(2−(−3))2+((−6)−(−7))2

Simplify.

Tap for more steps...

√26

The result can be shown in multiple forms.

Exact Form:

√26

Decimal Form:

5.09901951

6 0
2 years ago
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