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spayn [35]
3 years ago
9

I need help with number 30 and please show work

Mathematics
2 answers:
vesna_86 [32]3 years ago
4 0
To find the area of a rectangle, the area equation is A= length X width. So you have to take all the rectangles and add the areas together to get the whole area of the polygon. 
So the left rectangle is 12 X 4 = 48. 
the middle bottom rectangle is 14 X 6= 84.
the top right triangle, is 5 X 4= 20. 

So then you add all of the areas together. 

48+84+20= 152. 

Area of the Polygon= 152 cm 
Lady bird [3.3K]3 years ago
3 0
30)

10 x 6 = 60
 11 x 4 = 44
12 x 4 = 48

60 + 44 + 48 = 152 cm^2

answer: area = 152 cm^2

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The answer is
x =  \frac{3}{2}  +  -  \sqrt{ \frac{21}{2} }


4 0
3 years ago
What is m (angle) 2 if m (angle) 4 = 120°?​
Lady bird [3.3K]

Answer:

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4 0
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Find the slope and y-intercept of the following linear equation. Express the y-intercept as a coordinate pair y = 7x
strojnjashka [21]

Answer:

slope: 7

y intercept (0 , 0)

Step-by-step explanation:

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6 0
4 years ago
Given that a♥b =
kogti [31]
<span>First of all, write these in a way people can read them in the future. Don't make it so hard to help you.

Secondly:

Given that a♥b = 2a(32− b)

If a♥b = −23, solve for b in terms of a.

A) b = 16a + 32
B) b = 13a + 32
C) b = 12a + 32
D) b = 16a − 32

</span>-23 = 2a(32− b),  devide both sides by 2a -23/2a = 32 - b, subtract 32 from both sides -23/2a - 32 = -b, multiply both sides by -1  23/2a + 32 = b

verified:
b = 23/2a + 32 
-23 = 2a(32 − (23/2a + 32))
-23 = 2a(32 -23/2a -32)
-23 = 2a(-23/2a)
-23 = -23

Are you sure you copied this correctly?




4 0
3 years ago
What is the measure of the angle 4?
timurjin [86]
A straight line (q) has to equal 180 degrees

180 - 61 = 119 degrees

Answer: 119

I hope this helps but I’m sorry if this is incorrect
3 0
3 years ago
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