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Roman55 [17]
3 years ago
10

WILL GIVE BRAINIEST

Mathematics
1 answer:
Margarita [4]3 years ago
8 0

Answer:

x = 135º

Step-by-step explanation:

Sum of angles in a triangle is 180

A = 180 - 66 - 69

A = 45º

--------------------

Supplementary angles  total 180

x = 180 - 45

x = 135º

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HELP IF YOU KNOW HOW TO DO THIS THEN ANSWER IF NOT THEN DONT
AURORKA [14]

Answer:

Can’t rlly see 1-4

Step-by-step explanation:

5:a=12,b=5

a^2+b^2=c^2

144+25=169

c=13

6: a=8, c=10

64+b=100

b=6

7: a=15,c=17

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8:b=40,c=50

a=30

9:b=2,c=4

a=2 root 3

4 0
3 years ago
Plz help ill give u brainlist
Travka [436]

The surface area of the box will be 112 in²

Explanation

According to the given diagram, the shape of the box is Right Rectangular prism.

The formula for the surface area is :

A= 2(w*l+h*l+h*w) , where l= length, w= width and h= height of the rectangular prism

Given in the diagram that, l= 8, w=4 , h=2

So, plugging the values into the formula...

A= 2(4*8+2*8+2*4)\\ \\ A= 2(32+16+8)\\ \\ A=2(56)\\ \\ A=112

So, the surface area of the box is 112 in²

3 0
3 years ago
the scale model of a building is 5.4 feet tall. if the model is made out of tiny bricks each measuring 0.4 inch in height, how m
Alborosie
Each brick is .4 inch and the whole thing is 5.4 inches tall. So the height over the size of each brick will give you the total number of bricks. 

5.4/.4
=13.5

13 1/2 and a half bricks were used to make the model.

Hope this helps :)
3 0
3 years ago
What does this mean -(-c) when c+2/3 on the numberline
ad-work [718]

Answer:

Step-by-step explanation:

a negative minus a negative is a positive so it mean c plus 2divided by 3 on the the number line

5 0
3 years ago
The Kentucky derby distance is 19 furlongs. How far is the Kentucky derby?how many rods
Bumek [7]

Answer:

760 rods.

Step-by-step explanation:

If my memory serves me right there are  4 rods in a chain and 10 chains in a furlong.

So 19 furlongs = 19 * 10 * 4 rods

= 760 rods.

4 0
4 years ago
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