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GenaCL600 [577]
3 years ago
7

Given the following figure, what is the measure of angle B?

Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

132°

Step-by-step explanation:


<u>Sum of the interior angles of a polygon</u> is given by the formula:

(n-2)*180

Where n is the number of sides of the polygon.


<u>The figure shows a 5 sided polygon (aka Pentagon). So the sum of all the angles is:</u>

Sum = (5-2)*180\\=3*180\\=540


<u>If we add up all the expressions/angles given and equate to 540, we can figure out x. So:</u>

84+13x+6+9x-16+92+12x=540\\34x+166=540\\34x=540-166\\34x=374\\x=\frac{374}{34}=11

<em>But angle B measures 12x, so plugging in x=11, we have:</em>

Angle B = 12x=12(11)=132°

Second answer is right.

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22

Step-by-step explanation:

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Solve each equation for the variable
motikmotik

Answer:

X= -50

Step-by-step explanation:

Remove the parenthesis

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3 years ago
Evaluate f (x) = 3 (2)x for x=-1
kap26 [50]

The value of the function at x = -1 is 5

<h3>What is  function?</h3>

Function can be defined as an expression, rule, or law that defines a relationship between one variable known as the independent variable and another called the dependent variable.

From the information given, we have that;

f (x) = 3 (2)x  with  x=-1

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f (x) = 3 (2)x

f (x) = 3 (2) -1

Expand the bracket;

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2 years ago
PLEASE HELP!!!!! Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance t
Sveta_85 [38]

Answer:

The answer to your question is Advance = $35 and same-day = $40

Step-by-step explanation:

Advanced = a

Same-day = s

Equations

                       a +     s  = 75               ----- (I)

                  20a + 35s = 2100            ----- (II)

Process

1.- Solve the equations by elimination.

Multiply equation I by -20

                     -20a - 20s = -1500

                      20a + 35s = 2100

Simplify

                        0   + 15s = 600

Solve for s                  s = 600/15

                                    s = $ 40        

Substitute "s" in equation I to find "a"

                       a   +   40  = 75

Solve for a

                       a    = 75  - 40

                       a = 35

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3 years ago
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